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Journal articles on the topic 'Sensory-substitution-device'

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Author: Grafiati
Published: 10 December 2022
Last updated: 29 January 2023

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1

Arnold, Gabriel, Jacques Pesnot-Lerousseau, and Malika Auvray. "Individual Differences in Sensory Substitution." Multisensory Research 30, no. 6 (2017): 579–600. http://dx.doi.org/10.1163/22134808-00002561.

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Sensory substitution devices were developed in the context of perceptual rehabilitation and they aim at compensating one or several functions of a deficient sensory modality by converting stimuli that are normally accessed through this deficient sensory modality into stimuli accessible by another sensory modality. For instance, they can convert visual information into sounds or tactile stimuli. In this article, we review those studies that investigated the individual differences at the behavioural, neural, and phenomenological levels when using a sensory substitution device. We highlight how taking into account individual differences has consequences for the optimization and learning of sensory substitution devices. We also discuss the extent to which these studies allow a better understanding of the experience with sensory substitution devices, and in particular how the resulting experience is not akin to a single sensory modality. Rather, it should be conceived as a multisensory experience, involving both perceptual and cognitive processes, and emerging on each user’s pre-existing sensory and cognitive capacities.
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2

Durette, B., N. Louveton, D. Alleysson, and J. Herault. "Simulation of the retina in a sensory substitution device." Journal of Vision 10, no. 7 (August 13, 2010): 1058. http://dx.doi.org/10.1167/10.7.1058.

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3

Cipriani, C., M. D'Alonzo, and M. C. Carrozza. "A Miniature Vibrotactile Sensory Substitution Device for Multifingered Hand Prosthetics." IEEE Transactions on Biomedical Engineering 59, no. 2 (February 2012): 400–408. http://dx.doi.org/10.1109/tbme.2011.2173342.

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4

Hanneton, Sylvain, Malika Auvray, and Barthélemy Durette. "The Vibe: a versatile vision-to-audition sensory substitution device." Applied Bionics and Biomechanics 7, no. 4 (December 15, 2010): 269–76. http://dx.doi.org/10.1080/11762322.2010.512734.

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5

Chebat, Daniel-Robert, Fabien C. Schneider, Ron Kupers, and Maurice Ptito. "Navigation with a sensory substitution device in congenitally blind individuals." NeuroReport 22, no. 7 (May 2011): 342–47. http://dx.doi.org/10.1097/wnr.0b013e3283462def.

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Hanneton, Sylvain, Malika Auvray, and Barthélemy Durette. "The Vibe: A Versatile Vision-to-Audition Sensory Substitution Device." Applied Bionics and Biomechanics 7, no. 4 (2010): 269–76. http://dx.doi.org/10.1155/2010/282341.

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We describe a sensory substitution scheme that converts a video stream into an audio stream in real-time. It was initially developed as a research tool for studying human ability to learn new ways of perceiving the world: the Vibe can give us the ability to learn a kind of ‘vision’ by audition. It converts a video stream into a continuous stereophonic audio signal that conveys information coded from the video stream. The conversion from the video stream to the audio stream uses a kind of retina with receptive fields. Each receptive field controls a sound source and the user listens to a sound that is a mixture of all these sound sources. Compared to other existing vision-to-audition sensory substitution devices, the Vibe is highly versatile in particular because it uses a set of configurable units working in parallel. In order to demonstrate the validity and interest of this method of vision to audition conversion, we give the results of an experiment involving a pointing task to targets memorised through visual perception or through their auditory conversion by the Vibe. This article is also an opportunity to precisely draw the general specifications of this scheme in order to prepare its implementation on an autonomous/mobile hardware.
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7

D. Gomez, Juan, Guido Bologna, and Thierry Pun. "See ColOr: an extended sensory substitution device for the visually impaired." Journal of Assistive Technologies 8, no. 2 (June 10, 2014): 77–94. http://dx.doi.org/10.1108/jat-08-2013-0025.

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Purpose – The purpose of this paper is to overcome the limitations of sensory substitution methods (SSDs) to represent high-level or conceptual information involved in vision, which are mainly produced by the biological sensory mismatch between sight and substituting senses. Thus, provide the visually impaired with a more practical and functional SSD. Design/methodology/approach – Unlike any other approach, the SSD extends beyond a sensing prototype, by integrating computer vision methods to produce reliable knowledge about the physical world (at the lowest cost to the user). Importantly though, the authors do not abandon the typical encoding of low-level features into sound. The paper simply argues that any visual perception can be achieved through hearing needs to be reinforced or enhanced by techniques that lie beyond mere visual-to-audio mapping (e.g. computer vision, image processing). Findings – Experiments reported in this paper reveal that the See ColOr is learnable and functional, and provides easy interaction. In moderate time, participants were enabled to grasp visual information of the world out of which they could derive: spatial awareness, ability to find someone, location of daily objects and skill to walk safely avoiding obstacles. The encouraging results open a door toward autonomous mobility of the blind. Originality/value – The paper uses the “extended” approach to introduce and justify that the system is brand new, as well as the experimental studies on computer-vision extension of SSDs that are presented. Also, this is the first paper reporting on a terminated, integrated and functional system.
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8

Diot, Bruno, Petra Halavackova, Jacques Demongeot, and Nicolas Vuillerme. "Sensory Substitution for Balance Control Using a Vestibular-to-Tactile Device." Multisensory Research 27, no. 5-6 (2014): 313–36. http://dx.doi.org/10.1163/22134808-00002458.

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Postural control is essential for most activities of daily living. The impairment of this function can be extremely disabling. This work was stimulated by the testimony of a bilateral partial foot amputee who describes his difficulty in maintaining balance while washing his hair in the shower. We postulated that if the postural control system could not rely on accurate and reliable somatosensory inputs from the foot and ankle, as is probably the case following bilateral foot amputation due to the loss of the foot afferents and efferents, the weight of visual and vestibular cues would increase. We therefore assessed if a vestibular-to-tactile sensory substitution device could compensate for this impairment. Two separate experiments were conducted. Experiment 1: The effect of a vestibular-to-tongue tactile biofeedback balance system on the postural stability of this amputee was tested (on a force platform) and compared with a non-amputated, matched control group. The results showed that use of the biofeedback reduced centre of foot (CoP) displacement in all subjects but more spectacularly in the amputee. Experiment 2: The effect of the biofeedback was tested in 16 young healthy adults following a protocol of ankle muscle fatigue (known to alter ankle neuromuscular function and to perturb the control of bipedal posture). The results showed a significant decrease in CoP displacement compared with the control, non-biofeedback condition and a significantly greater effect of the biofeedback in the fatigue than the non-fatigue condition. Taken together, the results of these two studies suggest that an individual with double partial foot amputation was able to improve his balance control thanks to the use of a vestibular-to-tongue tactile biofeedback balance system and that young healthy individuals were able to take advantage of it to reduce the postural destabilisation induced by plantar-flexor muscle fatigue. Further studies are however necessary to confirm this in larger numbers of impaired persons as well as to assess the effectiveness in dynamic situations.
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9

Levy-Tzedek, S., S. Hanassy, S. Abboud, S. Maidenbaum, and A. Amedi. "Fast, accurate reaching movements with a visual-to-auditory sensory substitution device." Restorative Neurology and Neuroscience 30, no. 4 (2012): 313–23. http://dx.doi.org/10.3233/rnn-2012-110219.

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10

Bizoń-Angov, Patrycja, Dominik Osiński, Michał Wierzchoń, and Jarosław Konieczny. "Visual Echolocation Concept for the Colorophone Sensory Substitution Device Using Virtual Reality." Sensors 21, no. 1 (January 1, 2021): 237. http://dx.doi.org/10.3390/s21010237.

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Detecting characteristics of 3D scenes is considered one of the biggest challenges for visually impaired people. This ability is nonetheless crucial for orientation and navigation in the natural environment. Although there are several Electronic Travel Aids aiming at enhancing orientation and mobility for the blind, only a few of them combine passing both 2D and 3D information, including colour. Moreover, existing devices either focus on a small part of an image or allow interpretation of a mere few points in the field of view. Here, we propose a concept of visual echolocation with integrated colour sonification as an extension of Colorophone—an assistive device for visually impaired people. The concept aims at mimicking the process of echolocation and thus provides 2D, 3D and additionally colour information of the whole scene. Even though the final implementation will be realised by a 3D camera, it is first simulated, as a proof of concept, by using VIRCO—a Virtual Reality training and evaluation system for Colorophone. The first experiments showed that it is possible to sonify colour and distance of the whole scene, which opens up a possibility to implement the developed algorithm on a hardware-based stereo camera platform. An introductory user evaluation of the system has been conducted in order to assess the effectiveness of the proposed solution for perceiving distance, position and colour of the objects placed in Virtual Reality.
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11

Cancar, Leandro, Alex Díaz, Antonio Barrientos, David Travieso, and David M. Jacobs. "Tactile-Sight: A Sensory Substitution Device Based on Distance-Related Vibrotactile Flow." International Journal of Advanced Robotic Systems 10, no. 6 (January 2013): 272. http://dx.doi.org/10.5772/56235.

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12

Lobo, Lorena, David Travieso, David M. Jacobs, Matthew Rodger, and Cathy M. Craig. "Sensory substitution: Using a vibrotactile device to orient and walk to targets." Journal of Experimental Psychology: Applied 24, no. 1 (March 2018): 108–24. http://dx.doi.org/10.1037/xap0000154.

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13

Stiles, N., V. Chib, and S. Shimojo. "Behavioral and fMRI Measures of "Visual" Processing with a Sensory Substitution Device." Journal of Vision 12, no. 9 (August 10, 2012): 703. http://dx.doi.org/10.1167/12.9.703.

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14

Ward, Jamie, and Peter Meijer. "Visual experiences in the blind induced by an auditory sensory substitution device." Consciousness and Cognition 19, no. 1 (March 2010): 492–500. http://dx.doi.org/10.1016/j.concog.2009.10.006.

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15

Aydin, Mert, Rahim Mutlu, Dilpreet Singh, Emre Sariyildiz, Robyn Coman, Elizabeth Mayland, Jonathan Shemmell, and Winson Lee. "Novel Soft Haptic Biofeedback—Pilot Study on Postural Balance and Proprioception." Sensors 22, no. 10 (May 16, 2022): 3779. http://dx.doi.org/10.3390/s22103779.

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Sensory feedback is critical in proprioception and balance to orchestrate muscles to perform targeted motion(s). Biofeedback plays a significant role in substituting such sensory data when sensory functions of an individual are reduced or lost such as neurological disorders including stroke causing loss of sensory and motor functions requires compensation of both motor and sensory functions. Biofeedback substitution can be in the form of several means: mechanical, electrical, chemical and/or combination. This study proposes a soft monolithic haptic biofeedback device prototyped and pilot tests were conducted with healthy participants that balance and proprioception of the wearer were improved with applied mechanical stimuli on the lower limb(s). The soft monolithic haptic biofeedback device has been developed and manufactured using fused deposition modelling (FDM) that employs soft and flexible materials with low elastic moduli. Experimental results of the pilot tests show that the soft haptic device can effectively improve the balance of the wearer as much as can provide substitute proprioceptive feedback which are critical elements in robotic rehabilitation.
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16

Wright, Thomas D., Graham McAllister, and Jamie Ward. "Evolving the Ideal Visual-to-Auditory Sensory Substitution Device Using Interactive Genetic Algorithms." i-Perception 2, no. 8 (January 2011): 746. http://dx.doi.org/10.1068/ic746.

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17

Hamilton-Fletcher, Giles, Thomas D. Wright, and Jamie Ward. "Cross-Modal Correspondences Enhance Performance on a Colour-to-Sound Sensory Substitution Device." Multisensory Research 29, no. 4-5 (2016): 337–63. http://dx.doi.org/10.1163/22134808-00002519.

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Visual sensory substitution devices (SSDs) can represent visual characteristics through distinct patterns of sound, allowing a visually impaired user access to visual information. Previous SSDs have avoided colour and when they do encode colour, have assigned sounds to colour in a largely unprincipled way. This study introduces a new tablet-based SSD termed the ‘Creole’ (so called because it combines tactile scanning with image sonification) and a new algorithm for converting colour to sound that is based on established cross-modal correspondences (intuitive mappings between different sensory dimensions). To test the utility of correspondences, we examined the colour–sound associative memory and object recognition abilities of sighted users who had their device either coded in line with or opposite to sound–colour correspondences. Improved colour memory and reduced colour-errors were made by users who had the correspondence-based mappings. Interestingly, the colour–sound mappings that provided the highest improvements during the associative memory task also saw the greatest gains for recognising realistic objects that also featured these colours, indicating a transfer of abilities from memory to recognition. These users were also marginally better at matching sounds to images varying in luminance, even though luminance was coded identically across the different versions of the device. These findings are discussed with relevance for both colour and correspondences for sensory substitution use.
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18

Lobo, Lorena, Patric C. Nordbeck, Vicente Raja, Anthony Chemero, Michael A. Riley, David M. Jacobs, and David Travieso. "Route selection and obstacle avoidance with a short-range haptic sensory substitution device✰." International Journal of Human-Computer Studies 132 (December 2019): 25–33. http://dx.doi.org/10.1016/j.ijhcs.2019.03.004.

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19

Wright, Thomas D., Aaron Margolis, and Jamie Ward. "Using an auditory sensory substitution device to augment vision: evidence from eye movements." Experimental Brain Research 233, no. 3 (December 16, 2014): 851–60. http://dx.doi.org/10.1007/s00221-014-4160-1.

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20

Maidenbaum, Shachar, Shelly Levy-Tzedek, Daniel Robert Chebat, Rinat Namer-Furstenberg, and Amir Amedi. "The Effect of Extended Sensory Range via the EyeCane Sensory Substitution Device on the Characteristics of Visionless Virtual Navigation." Multisensory Research 27, no. 5-6 (2014): 379–97. http://dx.doi.org/10.1163/22134808-00002463.

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Mobility training programs for helping the blind navigate through unknown places with a White-Cane significantly improve their mobility. However, what is the effect of new assistive technologies, offering more information to the blind user, on the underlying premises of these programs such as navigation patterns?We developed the virtual-EyeCane, a minimalistic sensory substitution device translating single-point-distance into auditory cues identical to the EyeCane’s in the real world. We compared performance in virtual environments when using the virtual-EyeCane, a virtual-White-Cane, no device and visual navigation. We show that the characteristics of virtual-EyeCane navigation differ from navigation with a virtual-White-Cane or no device, and that virtual-EyeCane users complete more levels successfully, taking shorter paths and with less collisions than these groups, and we demonstrate the relative similarity of virtual-EyeCane and visual navigation patterns. This suggests that additional distance information indeed changes navigation patterns from virtual-White-Cane use, and brings them closer to visual navigation.
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21

Vincent, Margaret, Hao Tang, Wai Khoo, Zhigang Zhu, and Tony Ro. "Shape Discrimination Using the Tongue: Implications for a Visual-to-Tactile Sensory Substitution Device." Multisensory Research 29, no. 8 (2016): 773–98. http://dx.doi.org/10.1163/22134808-00002542.

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Sensory substitution devices have the potential to provide individuals with visual impairments with more information about their environments, which may help them recognize objects and achieve more independence in their daily lives. However, many of these devices may require extensive training and might be limited in the amount of information that they can convey. We tested the effectiveness and assessed some of the limitations of the BrainPort device, which provides stimulation through a 20 × 20 electrode grid array on the tongue. Across five experiments, including one with blind individuals, we found that subjects were unable to accurately discriminate between simple shapes as well as different line orientations that were briefly presented on the tongue, even after 300 trials of practice with the device. These experiments indicate that such a minimal training regimen with the BrainPort is not sufficient for object recognition, raising serious concerns about the usability of this device without extensive training.
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22

Wright, Thomas D., Jamie Ward, Sarah Simonon, and Aaron Margolis. "Where’s Wally? Audio–visual mismatch directs ocular saccades in sensory substitution." Seeing and Perceiving 25 (2012): 61. http://dx.doi.org/10.1163/187847612x646820.

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Sensory substitution is the representation of information from one sensory modality (e.g., vision) within another modality (e.g., audition). We used a visual-to-auditory sensory substitution device (SSD) to explore the effect of incongruous (true-)visual and substituted-visual signals on visual attention. In our multisensory sensory substitution paradigm, both visual and sonified-visual information were presented. By making small alterations to the sonified image, but not the seen image, we introduced audio–visual mismatch. The alterations consisted of the addition of a small image (for instance, the Wally character from the ‘Where’s Wally?’ books) within the original image. Participants were asked to listen to the sonified image and identify which quadrant contained the alteration. Monitoring eye movements revealed the effect of the audio–visual mismatch on covert visual attention. We found that participants consistently fixated more, and dwelled for longer, in the quadrant corresponding to the location (in the sonified image) of the target. This effect was not contingent on the participant reporting the location of the target correctly, which indicates a low-level interaction between an auditory stream and visual attention. We propose that this suggests a shared visual workspace that is accessible by visual sources other than the eyes. If this is indeed the case, it would support the development of other, more esoteric, forms of sensory substitution. These could include an expanded field of view (e.g., rear-view cameras), overlaid visual information (e.g., thermal imaging) or restoration of partial visual field loss (e.g., hemianopsia).
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23

Cancar, Leandro, Alex Díaz, Antonio Barrientos, David Travieso, and David M. Jacobs. "Corrigendum to Tactile-Sight: A Sensory Substitution Device Based on Distance-Related Vibrotactile Flow." International Journal of Advanced Robotic Systems 12, no. 6 (January 2015): 69. http://dx.doi.org/10.5772/60075.

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24

Brown, David, Tom Macpherson, and Jamie Ward. "Seeing with Sound? Exploring Different Characteristics of a Visual-to-Auditory Sensory Substitution Device." Perception 40, no. 9 (January 2011): 1120–35. http://dx.doi.org/10.1068/p6952.

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25

Wright, Thomas, and Jamie Ward. "The evolution of a visual-to-auditory sensory substitution device using interactive genetic algorithms." Quarterly Journal of Experimental Psychology 66, no. 8 (August 2013): 1620–38. http://dx.doi.org/10.1080/17470218.2012.754911.

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26

Hanna, Nancy, Richard W. Hertle, Kelley Culp, Mary Beth Doerr, Mona True, Brittany Holmes, and Giovanna Difranko. "Analysis of sensory substitution ambulation using the brainport device in blind children versus controls." Journal of American Association for Pediatric Ophthalmology and Strabismus 20, no. 4 (August 2016): e5. http://dx.doi.org/10.1016/j.jaapos.2016.07.019.

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27

De Volder, Anne G., Mitzi Catalan-Ahumada, Annie Robert, Anne Bol, Daniel Labar, Ann Coppens, Christian Michel, and Claude Veraart. "Changes in occipital cortex activity in early blind humans using a sensory substitution device." Brain Research 826, no. 1 (April 1999): 128–34. http://dx.doi.org/10.1016/s0006-8993(99)01275-5.

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28

Paré, Samuel, Maxime Bleau, Ismaël Djerourou, Vincent Malotaux, Ron Kupers, and Maurice Ptito. "Spatial navigation with horizontally spatialized sounds in early and late blind individuals." PLOS ONE 16, no. 2 (February 26, 2021): e0247448. http://dx.doi.org/10.1371/journal.pone.0247448.

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Blind individuals often report difficulties to navigate and to detect objects placed outside their peri-personal space. Although classical sensory substitution devices could be helpful in this respect, these devices often give a complex signal which requires intensive training to analyze. New devices that provide a less complex output signal are therefore needed. Here, we evaluate a smartphone-based sensory substitution device that offers navigation guidance based on strictly spatial cues in the form of horizontally spatialized sounds. The system uses multiple sensors to either detect obstacles at a distance directly in front of the user or to create a 3D map of the environment (detection and avoidance mode, respectively), and informs the user with auditory feedback. We tested 12 early blind, 11 late blind and 24 blindfolded-sighted participants for their ability to detect obstacles and to navigate in an obstacle course. The three groups did not differ in the number of objects detected and avoided. However, early blind and late blind participants were faster than their sighted counterparts to navigate through the obstacle course. These results are consistent with previous research on sensory substitution showing that vision can be replaced by other senses to improve performance in a wide variety of tasks in blind individuals. This study offers new evidence that sensory substitution devices based on horizontally spatialized sounds can be used as a navigation tool with a minimal amount of training.
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29

Adetunla, Adedotun O., Olanrewaju Kolade, Adeyinka M. Adeoye, and Saheed Akande. "Development of a Prototype Sensory Device as a Substitute for Single Sided Deaf People in Developing Nations." Journal Européen des Systèmes Automatisés 55, no. 6 (December 31, 2022): 765–69. http://dx.doi.org/10.18280/jesa.550608.

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Hearing loss is the inability to hear sounds ranging from 20 decibels or more in one or both ears. It can affect one or both ears and leads to difficulty in hearing speech or sounds in general. Single-sided deafness or unilateral hearing loss is a very widespread disability. However, most people only see hearing loss as being a binary problem assuming that you either have perfect hearing in both ears or are completely deaf in both ears, and dismiss the other types of hearing loss. Sensory substitution involves remapping the information gathered by one sensory receptor to another. Sensory receptors regardless of the signals they receive or capture, all encode the gathered information as electrochemical signals. This biological property of sensory receptors, coupled with the human brain’s neuroplasticity allows sensory receptors to be substituted, giving rise to new methods of sensory perception. This study aims to develop a sensory device known as a localizer. The localizer detects sound using numerous sound sensors, and feeds the input to the microcontrollers which then use the input to control the eccentric mass motor by implementing various motor drivers. The results gotten from this prototype device shows great improvement in the ability of a single-sided deaf person to localize sound.
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30

Plaza, Paula, Isabel Cuevas, Cécile Grandin, Anne G. De Volder, and Laurent Renier. "Looking into Task-Specific Activation Using a Prosthesis Substituting Vision with Audition." ISRN Rehabilitation 2012 (February 6, 2012): 1–15. http://dx.doi.org/10.5402/2012/490950.

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A visual-to-auditory sensory substitution device initially developed for the blind is known to allow visual-like perception through sequential exploratory strategies. Here we used functional magnetic resonance imaging (fMRI) to test whether processing the location versus the orientation of simple (elementary) “visual” stimuli encoded into sounds using the device modulates the brain activity within the dorsal visual stream in the absence of sequential exploration of these stimuli. Location and orientation detection with the device induced a similar recruitment of frontoparietal brain areas in blindfolded sighted subjects as the corresponding tasks using the same stimuli in the same subjects in vision. We observed a similar preference of the right superior parietal lobule for spatial localization over orientation processing in both sensory modalities. This provides evidence that the parietal cortex activation during the use of the prosthesis is task related and further indicates the multisensory recruitment of the dorsal visual pathway in spatial processing.
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31

Sato, Go. "Sensory substitution therapy using a tilt perception adjustment device (TPAD) for patients with bilateral vestibulopathy." Equilibrium Research 80, no. 3 (June 30, 2021): 210–15. http://dx.doi.org/10.3757/jser.80.210.

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32

Osiński, Dominik, Marta Łukowska, Dag Roar Hjelme, and Michał Wierzchoń. "Colorophone 2.0: A Wearable Color Sonification Device Generating Live Stereo-Soundscapes—Design, Implementation, and Usability Audit." Sensors 21, no. 21 (November 5, 2021): 7351. http://dx.doi.org/10.3390/s21217351.

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The successful development of a system realizing color sonification would enable auditory representation of the visual environment. The primary beneficiary of such a system would be people that cannot directly access visual information—the visually impaired community. Despite the plethora of sensory substitution devices, developing systems that provide intuitive color sonification remains a challenge. This paper presents design considerations, development, and the usability audit of a sensory substitution device that converts spatial color information into soundscapes. The implemented wearable system uses a dedicated color space and continuously generates natural, spatialized sounds based on the information acquired from a camera. We developed two head-mounted prototype devices and two graphical user interface (GUI) versions. The first GUI is dedicated to researchers, and the second has been designed to be easily accessible for visually impaired persons. Finally, we ran fundamental usability tests to evaluate the new spatial color sonification algorithm and to compare the two prototypes. Furthermore, we propose recommendations for the development of the next iteration of the system.
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33

Kilian, Jakob, Alexander Neugebauer, Lasse Scherffig, and Siegfried Wahl. "The Unfolding Space Glove: A Wearable Spatio-Visual to Haptic Sensory Substitution Device for Blind People." Sensors 22, no. 5 (February 26, 2022): 1859. http://dx.doi.org/10.3390/s22051859.

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This paper documents the design, implementation and evaluation of the Unfolding Space Glove—an open source sensory substitution device. It transmits the relative position and distance of nearby objects as vibratory stimuli to the back of the hand and thus enables blind people to haptically explore the depth of their surrounding space, assisting with navigation tasks such as object recognition and wayfinding. The prototype requires no external hardware, is highly portable, operates in all lighting conditions, and provides continuous and immediate feedback—all while being visually unobtrusive. Both blind (n = 8) and blindfolded sighted participants (n = 6) completed structured training and obstacle courses with both the prototype and a white long cane to allow performance comparisons to be drawn between them. The subjects quickly learned how to use the glove and successfully completed all of the trials, though still being slower with it than with the cane. Qualitative interviews revealed a high level of usability and user experience. Overall, the results indicate the general processability of spatial information through sensory substitution using haptic, vibrotactile interfaces. Further research would be required to evaluate the prototype’s capabilities after extensive training and to derive a fully functional navigation aid from its features.
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34

Hoffmann, Rebekka, Simone Spagnol, Árni Kristjánsson, and Runar Unnthorsson. "Evaluation of an Audio-haptic Sensory Substitution Device for Enhancing Spatial Awareness for the Visually Impaired." Optometry and Vision Science 95, no. 9 (September 2018): 757–65. http://dx.doi.org/10.1097/opx.0000000000001284.

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35

Ye, Yaozu, Kaiwei Wang, Weijian Hu, Huabing Li, Kailun Yang, Lei Sun, and Zuobing Chen. "A Wearable Vision-To-Audio Sensory Substitution Device for Blind Assistance and the Correlated Neural Substrates." Journal of Physics: Conference Series 1229 (May 2019): 012026. http://dx.doi.org/10.1088/1742-6596/1229/1/012026.

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36

Raj, Anil K., Peter D. Neuhaus, Adrien M. Moucheboeuf, Jerryll H. Noorden, and David V. Lecoutre. "Mina: A Sensorimotor Robotic Orthosis for Mobility Assistance." Journal of Robotics 2011 (2011): 1–8. http://dx.doi.org/10.1155/2011/284352.

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While most mobility options for persons with paraplegia or paraparesis employ wheeled solutions, significant adverse health, psychological, and social consequences result from wheelchair confinement. Modern robotic exoskeleton devices for gait assistance and rehabilitation, however, can support legged locomotion systems for those with lower extremity weakness or paralysis. The Florida Institute for Human and Machine Cognition (IHMC) has developed the Mina, a prototype sensorimotor robotic orthosis for mobility assistance that provides mobility capability for paraplegic and paraparetic users. This paper describes the initial concept, design goals, and methods of this wearable overground robotic mobility device, which uses compliant actuation to power the hip and knee joints. Paralyzed users can balance and walk using the device over level terrain with the assistance of forearm crutches employing a quadrupedal gait. We have initiated sensory substitution feedback mechanisms to augment user sensory perception of his or her lower extremities. Using this sensory feedback, we hypothesize that users will ambulate with a more natural, upright gait and will be able to directly control the gait parameters and respond to perturbations. This may allow bipedal (with minimal support) gait in future prototypes.
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Striem, E., O. Dakwar, and A. Amedi. "Highly transient neuroplasticity following one session of learning to use a sensory substitution device: an fMRI study." NeuroImage 47 (July 2009): S107. http://dx.doi.org/10.1016/s1053-8119(09)70956-5.

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Hamilton-Fletcher, Giles, and Jamie Ward. "Representing Colour Through Hearing and Touch in Sensory Substitution Devices." Multisensory Research 26, no. 6 (2013): 503–32. http://dx.doi.org/10.1163/22134808-00002434.

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Visual sensory substitution devices (SSDs) allow visually-deprived individuals to navigate and recognise the ‘visual world’; SSDs also provide opportunities for psychologists to study modality-independent theories of perception. At present most research has focused on encoding greyscale vision. However at the low spatial resolutions received by SSD users, colour information enhances object-ground segmentation, and provides more stable cues for scene and object recognition. Many attempts have been made to encode colour information in tactile or auditory modalities, but many of these studies exist in isolation. This review brings together a wide variety of tactile and auditory approaches to representing colour. We examine how each device constructs ‘colour’ relative to veridical human colour perception and report previous experiments using these devices. Theoretical approaches to encoding and transferring colour information through sound or touch are discussed for future devices, covering alternative stimulation approaches, perceptually distinct dimensions and intuitive cross-modal correspondences.
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Richard, Paul, Damien Chamaret, François-Xavier Inglese, Philippe Lucidarme, and Jean-Louis Ferrier. "Human-Scale Virtual Environment for Product Design: Effect of Sensory Substitution." International Journal of Virtual Reality 5, no. 2 (January 1, 2006): 37–44. http://dx.doi.org/10.20870/ijvr.2006.5.2.2687.

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This paper presents a human-scale virtual environment (VE) with haptic feedback along with two experiments performed in the context of product design. The user interacts with a virtual mock-up using a large-scale bimanual string-based haptic interface called SPIDAR (Space Interface Device for Artificial Reality). An original self-calibration method is proposed. A vibro-tactile glove was developed and integrated to the SPIDAR to provide tactile cues to the operator. The purpose of the first experiment was: (1) to examine the effect of tactile feedback in a task involving reach-and-touch of different parts of a digital mock-up, and (2) to investigate the use of sensory substitution in such tasks. The second experiment aimed to investigate the effect of visual and auditory feedback in a car-light maintenance task. Results of the first experiment indicate that the users could easily and quickly access and finely touch the different parts of the digital mock-up when sensory feedback (either visual, auditory, or tactile) was present. Results of the of the second experiment show that visual and auditory feedbacks improve average placement accuracy by about 54 % and 60% respectively compared to the open loop case
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Zhao, Tianming, Qi Wang, and An Du. "Self-Powered Flexible Sour Sensor for Detecting Ascorbic Acid Concentration Based on Triboelectrification/Enzymatic-Reaction Coupling Effect." Sensors 21, no. 2 (January 7, 2021): 373. http://dx.doi.org/10.3390/s21020373.

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Artificial sensory substitution systems can mimic human sensory organs through replacing the sensing process of a defective sensory receptor and transmitting the sensing signal into the nervous system. Here, we report a self-powered flexible gustation sour sensor for detecting ascorbic acid concentration. The material system comprises of Na2C2O4-Ppy with AAO modification, PDMS and Cu wire mesh. The working mechanism is contributed to the triboelectrification/enzymatic-reaction coupling effect, and the device can collect weak energy from body movements and directly output triboelectric current without any external power-units. The triboelectric output is affected by AA concentration, and the response is up to 34.82% against 15.625 mM/L of AA solution. Furthermore, a practical application in detecting ascorbic acid concentration of different drinks has been demonstrated. This work can encourage the development of wearable flexible electronics and this self-powered sour sensor has the potential that can be acted as a kind of gustatory receptors to build electronic tongues.
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Zhao, Tianming, Qi Wang, and An Du. "Self-Powered Flexible Sour Sensor for Detecting Ascorbic Acid Concentration Based on Triboelectrification/Enzymatic-Reaction Coupling Effect." Sensors 21, no. 2 (January 7, 2021): 373. http://dx.doi.org/10.3390/s21020373.

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Artificial sensory substitution systems can mimic human sensory organs through replacing the sensing process of a defective sensory receptor and transmitting the sensing signal into the nervous system. Here, we report a self-powered flexible gustation sour sensor for detecting ascorbic acid concentration. The material system comprises of Na2C2O4-Ppy with AAO modification, PDMS and Cu wire mesh. The working mechanism is contributed to the triboelectrification/enzymatic-reaction coupling effect, and the device can collect weak energy from body movements and directly output triboelectric current without any external power-units. The triboelectric output is affected by AA concentration, and the response is up to 34.82% against 15.625 mM/L of AA solution. Furthermore, a practical application in detecting ascorbic acid concentration of different drinks has been demonstrated. This work can encourage the development of wearable flexible electronics and this self-powered sour sensor has the potential that can be acted as a kind of gustatory receptors to build electronic tongues.
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42

Mick, Ben, Nathan Reddmann, Rayyan Manwar, and Kamran Avanaki. "Ultrasonic Echolocation Device for Assisting the Visually Impaired." Current Medical Imaging Formerly Current Medical Imaging Reviews 16, no. 5 (May 28, 2020): 601–10. http://dx.doi.org/10.2174/1573405615666190423141647.

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Background: Echolocation is a technique whereby the location of objects is determined via reflected sound. Currently, some visually impaired individuals use a form of echolocation to locate objects and to orient themselves. However, this method takes years of practice to accurately utilize. Aims: This paper presents the development of a sensory substitution device for visually impaired users, which gauged distances and the placement of objects. Methods: Using ultrasonic technology, the device employed a method of echolocation to increase the user's independence and mobility. The main components of this device are an ultrasound transceiver and a miniaturized Arduino board. Through research and prototyping, this technology was integrated into a biomedical application in a watch form factor which provides feedback to the user regarding the measured distance by the ultrasonic transducer. Results: The output of this process is a tactile feedback that varies in intensity proportional to the distance of the detected object. We tested the device in different scenarios including different distances from a different material. The difference between the device reading and the actual distance, from 0 to 400 cm was statistically insignificant. Conclusion: It is believed this device will boost the confidence of the user in navigation.
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Díaz, Alex, Antonio Barrientos, David M. Jacobs, and David Travieso. "Action-contingent vibrotactile flow facilitates the detection of ground level obstacles with a partly virtual sensory substitution device." Human Movement Science 31, no. 6 (December 2012): 1571–84. http://dx.doi.org/10.1016/j.humov.2012.05.006.

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44

Mendes, Raquel Metzker, Carlo Rondinoni, Marisa de Cássia Registro Fonseca, Rafael Inácio Barbosa, Carlos Ernesto Garrido Salmón, Cláudio Henrique Barbieri, and Nilton Mazzer. "Cortical and functional responses to an early protocol of sensory re-education of the hand using audio–tactile interaction." Hand Therapy 23, no. 2 (December 7, 2017): 45–52. http://dx.doi.org/10.1177/1758998317746699.

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Introduction Early sensory re-education techniques are important strategies associated with cortical hand area preservation. The aim of this study was to investigate early cortical responses, sensory function outcomes and disability in patients treated with an early protocol of sensory re-education of the hand using an audio-tactile interaction device with a sensor glove model. Methods After surgical repair of median and/or ulnar nerves, participants received either early sensory re-education twice a week with the sensor glove during three months or no specific sensory training. Both groups underwent standard rehabilitation. Patients were assessed at one, three and six months after surgery on training-related cortical responses by functional magnetic resonance imaging, sensory thresholds, discriminative touch and disability using the Disabilities of the Arm, Shoulder and Hand patient-reported questionnaire. Results At six-months, there were no statistically significant differences in sensory function between groups. During functional magnetic resonance imaging, trained patients presented complex cortical responses to auditory stimulation indicating an effective connectivity between the cortical hand map and associative areas. Conclusion Training with the sensor glove model seems to provide some type of early cortical audio-tactile interaction in patients with sensory impairment at the hand after nerve injury. Although no differences were observed between groups related to sensory function and disability at the intermediate phase of peripheral reinnervation, this study suggests that an early sensory intervention by sensory substitution could be an option to enhance the response on cortical reorganization after nerve repair in the hand. Longer follow-up and an adequately powered trial is needed to confirm our findings.
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Zvorișteanu, Otilia, Simona Caraiman, Robert-Gabriel Lupu, Nicolae Alexandru Botezatu, and Adrian Burlacu. "Sensory Substitution for the Visually Impaired: A Study on the Usability of the Sound of Vision System in Outdoor Environments." Electronics 10, no. 14 (July 6, 2021): 1619. http://dx.doi.org/10.3390/electronics10141619.

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For most visually impaired people, simple tasks such as understanding the environment or moving safely around it represent huge challenges. The Sound of Vision system was designed as a sensory substitution device, based on computer vision techniques, that encodes any environment in a naturalistic representation through audio and haptic feedback. The present paper presents a study on the usability of this system for visually impaired people in relevant environments. The aim of the study is to assess how well the system is able to help the perception and mobility of the visually impaired participants in real life environments and circumstances. The testing scenarios were devised to allow the assessment of the added value of the Sound of Vision system compared to traditional assistive instruments, such as the white cane. Various data were collected during the tests to allow for a better evaluation of the performance: system configuration, completion times, electro-dermal activity, video footage, user feedback. With minimal training, the system could be successfully used in outdoor environments to perform various perception and mobility tasks. The benefit of the Sound of Vision device compared to the white cane was confirmed by the participants and by the evaluation results to consist in: providing early feedback about static and dynamic objects, providing feedback about elevated objects, walls, negative obstacles (e.g., holes in the ground) and signs.
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Lobo, Lorena, David Travieso, Antonio Barrientos, and David M. Jacobs. "Stepping on Obstacles with a Sensory Substitution Device on the Lower Leg: Practice without Vision Is More Beneficial than Practice with Vision." PLoS ONE 9, no. 6 (June 5, 2014): e98801. http://dx.doi.org/10.1371/journal.pone.0098801.

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Alves, Rodrigo Leone, Ana Maria Jeronimo Soares, Raimundo Carlos Silverio Freire, and Carlos Manoel Gregório Santos Lima. "SYNTHESIZABLE AND PROTOTYPIC VISUAL-TACTILE SYSTEM-IN FPGA: AN ALTERNATIVE TO ANALYSIS AND IMPROVEMENT OF THE VOICE QUALITY FOR THE HEARING IMPAIRED PEOPLE." HOLOS 2 (April 20, 2016): 3. http://dx.doi.org/10.15628/holos.2016.4086.

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Oral communication comprises one of the most important forms of social interaction. The process of learning the spoken language depends on the hearing, therefore, the total or partial loss of hearing sensitivity hinders such aspect. Digital signal processing techniques with non-invasive character are used for diagnosis, support and improvement of the voice quality of the deaf. Thus, the present study aims to propose and develop a system of analysis and correction of vocal disorders by means of visual and tactile feedback with module implemented in programmable device type FPGA (Field Programmable Gate Array). The results point to the potential of a proposed intervention as a helper for sensory substitution, being based on the monitoring and control of speech, in order to allow for the assessment and remediation by means of an electronic resource, allowing deaf individuals to obtain a support for learning the spoken language. The possibilities for improvements in communication skills observed in this study are dependent on the capability of the device together with the speech therapist, integrating therapies with the support of the family, the time and the motivation of the user, factors that cooperate for the success of this approach.
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Bălan, Oana, Alin Moldoveanu, Florica Moldoveanu, Hunor Nagy, György Wersényi, and Rúnar Unnórsson. "Improving the Audio Game–Playing Performances of People with Visual Impairments through Multimodal Training." Journal of Visual Impairment & Blindness 111, no. 2 (March 2017): 148–64. http://dx.doi.org/10.1177/0145482x1711100206.

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Introduction As the number of people with visual impairments (that is, those who are blind or have low vision) is continuously increasing, rehabilitation and engineering researchers have identified the need to design sensory-substitution devices that would offer assistance and guidance to these people for performing navigational tasks. Auditory and haptic cues have been shown to be an effective approach towards creating a rich spatial representation of the environment, so they are considered for inclusion in the development of assistive tools that would enable people with visual impairments to acquire knowledge of the surrounding space in a way close to the visually based perception of sighted individuals. However, achieving efficiency through a sensory substitution device requires extensive training for visually impaired users to learn how to process the artificial auditory cues and convert them into spatial information. Methods Considering all the potential advantages game-based learning can provide, we propose a new method for training sound localization and virtual navigational skills of visually impaired people in a 3D audio game with hierarchical levels of difficulty. The training procedure is focused on a multimodal (auditory and haptic) learning approach in which the subjects have been asked to listen to 3D sounds while simultaneously perceiving a series of vibrations on a haptic headband that corresponds to the direction of the sound source in space. Results The results we obtained in a sound-localization experiment with 10 visually impaired people showed that the proposed training strategy resulted in significant improvements in auditory performance and navigation skills of the subjects, thus ensuring behavioral gains in the spatial perception of the environment.
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Stoll, Chloé, Richard Palluel-Germain, Vincent Fristot, Denis Pellerin, David Alleysson, and Christian Graff. "Navigating from a Depth Image Converted into Sound." Applied Bionics and Biomechanics 2015 (2015): 1–9. http://dx.doi.org/10.1155/2015/543492.

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Background.Common manufactured depth sensors generate depth images that humans normally obtain from their eyes and hands. Various designs converting spatial data into sound have been recently proposed, speculating on their applicability as sensory substitution devices (SSDs).Objective.We tested such a design as a travel aid in a navigation task.Methods.Our portable device (MeloSee) converted 2D array of a depth image into melody in real-time. Distance from the sensor was translated into sound intensity, stereo-modulated laterally, and the pitch represented verticality. Twenty-one blindfolded young adults navigated along four different paths during two sessions separated by one-week interval. In some instances, a dual task required them to recognize a temporal pattern applied through a tactile vibrator while they navigated.Results.Participants learnt how to use the system on both new paths and on those they had already navigated from. Based on travel time and errors, performance improved from one week to the next. The dual task was achieved successfully, slightly affecting but not preventing effective navigation.Conclusions.The use of Kinect-type sensors to implement SSDs is promising, but it is restricted to indoor use and it is inefficient on too short range.
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Kowalczewski, Przemysław, Maria Różańska, Agnieszka Makowska, Paweł Jeżowski, and Piotr Kubiak. "Production of wheat bread with spray-dried potato juice: Influence on dough and bread characteristics." Food Science and Technology International 25, no. 3 (December 3, 2018): 223–32. http://dx.doi.org/10.1177/1082013218814605.

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Spray-dried potato juice, a raw material with pro-health properties that have already been described in recent literature, was used to substitute a part of wheat flour in bread. Bread was chosen based on its popularity. This paper is a report on the results of this substitution. Three levels of flour replacement were chosen – 2.5, 5.0 and 7.5% (with respect to the mass of flour). The influence of potato juice addition on some of the most important characteristics of wheat bread was determined. Mixes of wheat flour and spray-dried potato juice were analyzed for fermentative and pasting properties. Baked bread samples were analyzed for their texture, color, consumer acceptance and antioxidant activity. The substitution influenced the volume of the loaf as gasses were not retained by the underdeveloped gluten network. Spray-dried potato juice was also found to influence the pasting properties. The viscosity values (peak viscosity, trough and final viscosity) determined with the RVA device were increased in pastes obtained from raw material mixtures with spray-dried potato juice. These crumb also showed increased firmness and chewiness as well as decreased springiness in the performed texture profile analyses. Spray-dried potato juice was also found to impact the color of bread crumb to an extent noticeable to the human eye. The bread that contained spray-dried potato juice was darker than bread produced with sole wheat bread. The color components (CIE L*a*b*) were shifted toward red and yellow. The bread containing spray-dried potato juice was also significantly richer in antioxidant compounds than the control wheat bread. From the perspective of consumer acceptance, the introduction of larger amounts of spray-dried potato juice resulted in deterioration of the sensory quality. Nonetheless, the acceptance of bread with 2.5% of flour substituted with spray-dried potato juice did not differ significantly from the control.
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