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Dissertations / Theses on the topic 'Spatial neglekt'

Author: Grafiati

Published: 30 June 2021

Last updated: 29 July 2025

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1

Widengren, Mattias. "A HOPE FOR STROKE REHABILITATION : EXPLORING THE REHATT MIXED REALITY APPLICATION." Thesis, Umeå universitet, Institutionen för psykologi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-185272.

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Unilateral spatial neglect (USN) is a common disorder after stroke. An application especially developed for stroke rehabilitation, the RehAtt Mixed Reality (MR) intends to train cognitive and motor functions that are affected by USN, by the means of interactive 3D games played in mixed reality, through smart glasses. The present study targets one specific cognitive function, namely spatial attention, and compares individual performances in one of the games (scenarios) to performances in a widely used test for detection of deficits in spatial attention – the Posner test. The hypothesis is that

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2

Gerafi, Joel. "A Unified Perspective of Unilateral Spatial Neglect." Thesis, Högskolan i Skövde, Institutionen för kommunikation och information, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-6095.

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The aim of this review is to provide a unified perspective of unilateral spatial neglect (USN). USN is a neurological disorder frequently observed following damage or diseases to the brain. It is particularly associated with strokes to specific anatomical structures within the right hemisphere. Patients with USN fail to respond to or orient towards stimuli located in the hemispace contralateral to the lesion. They also show peculiar behavioral manifestations. There are several distinct subtypes of USN which can affect sensory or motor modalities, spatial representations, the range of space, or

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3

Walker, Robin. "Visual attention with implications for unilateral spatial neglect." Thesis, Durham University, 1992. http://etheses.dur.ac.uk/5611/.

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Recent models of visual attention (eg. Rizzolatti et al., 1987) have suggested that a similar system orients visual attention as is used to produce a saccadic eye movement. This thesis provides further support for the link between the attentional and eye orienting systems and has incorporated ideas from recent models of saccade generation. The time taken by normal subjects to initiate a saccade ('latency'), is examined in Chapters two, three and four. Subjects were given attentional instructions and saccades made to either: unilateral single, or, bilateral double, targets. Latency to attended

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4

FORTIS, PAOLA. "Prism adaptation: a rehabilitation technique for spatial neglect." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2012. http://hdl.handle.net/10281/28396.

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This doctoral thesis is divided in six chapters and presents the results of four experiments. It investigates the use of prism adaptation (PA) in the rehabilitation of spatial neglect, how PA may affect spatial cognition, and the specific mechanisms that are influenced by PA. Knowing more about the systems responsive to PA may help our understanding of which symptoms, and which patients, improve optimally after PA training. The Introduction explains concepts and backgrounds useful for the understanding of the experimental projects. First, the definition and characteristics of Unilateral Spat

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5

Menon, Anita. "Assessment of unilateral spatial neglect post stroke in acute care hospitals : are we neglecting neglect?" Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=80332.

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Timely and accurate assessment of unilateral spatial neglect (USN) post stroke is a critical component of best practice, given that a recent Clinical Practice Guidelines for stroke has recommended the standardized assessment of USN within 48 hours of regaining consciousness following a stroke. This multi-centered, retrospective study using data from medical charts of a representative sample of individuals admitted to 10 Ontario acute care hospitals from July 15th to December 15th 2002, examined the prevalence, timing and frequency of use of standardized assessments to evaluate USN post

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6

Murphy, Peter. "A study of hemispatial neglect in man and monkey." Thesis, University of Liverpool, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.290408.

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7

Fisher, Zoe. "The effects of prism adaptation on unilateral spatial neglect." Thesis, Swansea University, 2009. https://cronfa.swan.ac.uk/Record/cronfa43074.

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This thesis concerns the syndrome of visual unilateral spatial neglect (USN). Pisella and Mattingley (2004) argue that two of the core deficits associated with USN, the ipsilesional reaction time (RT) bias (thought to reflect the ipsilesional attention bias) and the ipsilesional detection bias, may have distinct neural substrates and thus may dissociate. In the research reported in this thesis, the 'dissociation hypothesis' was explored in a single patient (JH). JH was impaired at detecting contralesional targets on the visual search task in near space but her far space contralesional target d

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8

Sosa, Machado Yamaya. "Studies of Visuospatial Attention." Diss., North Dakota State University, 2012. https://hdl.handle.net/10365/26486.

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Pseudoneglect (PN) reveals a contralateral bias in the deployment of visuospatial attention by the dominant (right) hemisphere. The magnitude of PN is phasically modulated by transient exogenous visual cues which automatically recruit attention to cued locations. Optimal cue-line onset asynchrony (SOA), cue-contrast of this cueing effect and the relative effectiveness of cue locations relative to line endpoints are unknown. Similarly, the direction of line scanning modulates the tonic bias, although the origin of this modulation is unknown. The present experiments aim at informing theories abo

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9

Malhotra, Paresh Arjun. "Spatial Working Memory and Sustained Attention in the Neglect Syndrome." Thesis, Imperial College London, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.487565.

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Spatial neglect is most prominently associated with damage to the right cerebral hemisphere, especially parietal and frontal regions. Although many studies of the neglect syndrome have tended to focus on spatial pathological mechanisms, an increasing body ofdata points to right hemisphere involvement in spatial and nonspatial domains, including spatial working memory (SWM) and sustained attention. The experiments described here critically examine the roles ofSWM, sustained attention and their interaction in the neglect syndrome. By employing a vertical variant of the traditional Corsi blocks i

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10

Sullivan, Carol-Anne Maria. "The effects of lateralized stimulation on unilateral visuo-spatial neglect." Thesis, University of York, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341860.

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11

Santos, Andrade Katia. "Visual neglect in posterior cortical atrophy : a new methodological approach for a better understanding of the neglect syndrome." Paris 6, 2012. http://www.theses.fr/2012PA066460.

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La négligence spatiale, caractérisée par un déploiement déficitaire et asymétrique de l’attention spatiale, est un syndrome neurologique très handicapant. Un nouveau concept suggère qu’il s’agit d’une pathologie de réseau plutôt qu’une pathologie de localisation corticale unique. L’objectif principal de ce travail de thèse était de tester cette hypothèse et de mieux comprendre la contribution de chaque hémisphère cérébral dans la survenue de ce syndrome. La négligence demeure peu étudiée dans des conditions neurologiques autres que les accidents vasculaires cérébraux. Néanmoins, dans l'atrophi

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12

Raghavan, Charumati. "Hemispatial neglect : an evaluation of novel assessment methods and rehabilitation." Thesis, University of Oxford, 2017. http://ora.ox.ac.uk/objects/uuid:793e3bae-afab-436e-9ca1-4c991d8ea99a.

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Hemispatial neglect, is a major cause of post-stroke disability and poor functional recovery. Hence, identifying sensitive methods to assess and rehabilitate neglect is important. Chapters 3 and 4 focused on development of novel assessment techniques for representational neglect. The 'Shopping Mall' and 'Clock Cueing' tasks improved upon previous tests and were useful in identifying dissociations in representational neglect based on type of stimuli (topological, non-topological) and time of assessment (pre-stroke, post-stroke) in chronic stroke patients. Chapters 5 and 6 investigated the effic

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13

Liang, Yiqing. "A Modelling Approach to Computer-Based Assessment of Visuo-Spatial Neglect." Thesis, University of Kent, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.499681.

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14

Sarri, Margarita. "Spatial neglect and extinction : modulations by task, stimulus and prism therapy." Thesis, University College London (University of London), 2007. http://discovery.ucl.ac.uk/1445044/.

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Spatial neglect is a multi-component neurological syndrome, with the deficits including losses in awareness, attention and exploration towards the contralesional side of space, most commonly after right-hemisphere stroke. Neglect does not invariably affect just a fixed portion of space, but instead can be modulated by stimulation and task demands, including attentional factors. This thesis examines how aspects of neglect may be modulated by top-down task manipulations or bottom-up stimulus factors or by interventions, such as prism adaptation, that may have potential therapeutic benefit. The e

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15

Ciaraffa, Francesca. "Anatomo-clinical correlations in visuospatial neglect : influence of visual distractors." Paris 6, 2012. http://www.theses.fr/2012PA066073.

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L’objectif de cette thèse était d’étudier la contribution de l’attraction magnétique (AM) et du déficit de mémoire de travail (DMT) à l’origine du syndrome de négligence, et d’identifier leurs corrélats lésionnels. 51 patients avec lésion de l’hémisphère droit (dont 34 avec signes de négligence gauche) devaient toucher des cercles sur un écran tactile dans 3 conditions, où les cercles (1) restaient inchangés, (2) devenaient plus saillants, (3) disparaissaient. Les patients ont également été soumis à une IRM structurelle et de diffusion. Pour chaque sujet et chaque condition expérimentale, la p

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Bareham, Corinne Anne. "Investigation of alertness as a modulator of spatial bias : rehabilitation of neglect." Thesis, University of Cambridge, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.648676.

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17

RONCHI, ROBERTA. "Behavioural monitoring disorders in unilateral spatial neglect: productive symptoms and impaired awareness of disease." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2011. http://hdl.handle.net/10281/19801.

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This doctoral thesis investigates the relationships between disorders of behavioural monitoring (including “productive” behaviours and unawareness of neuropsychological deficits) and unilateral spatial neglect in right-brain-damaged patients. One main monitoring disorder is recurrent perseveration, namely a “productive” motor symptom frequently found in target cancellation tasks: we demonstrate, in two specific tasks (Experiments 1 and 2), that the disposition of the stimuli and the type of target modulate its severity. Neglect patients showing perseveration in visuo-motor exploratory tests p

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18

Jacquin-Courtois, Sophie. "Plasticité sensorimotrice et cognition spatiale : généralisation des effets consécutifs de l’adaptation prismatique." Thesis, Lyon 1, 2010. http://www.theses.fr/2010LYO10209.

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L’adaptation des fonctions motrices permet l’optimisation des interactions avec l’environnement et ses modifications. Une des grandes questions posées à ce sujet concerne la spécificité des modifications implémentées. Dans la littérature traditionnelle sur l’adaptation visuo-manuelle au port de prismes, on retrouve une généralisation de l’adaptation à des positions spatiales non-apprises, mais un très faible transfert de l’adaptation aux autres effecteurs moteurs. Par contraste, les résultats thérapeutiques acquis chez le patient négligent depuis 12 ans suggèrent que l’adaptation visuo-manuell

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Petzold, Anita. "Increasing knowledge of best practices in occupational therapists treating post-stroke unilateral spatial neglect." Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=96950.

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A significant gap exists between evidence-based practice (EBP) and actual occupational therapy (OT) practice in the management of a disabling post-stroke impairment - unilateral spatial neglect (USN). With improved patient outcomes linked to the use of best practices, it is crucial to modify OTs' actual practices in stroke care. To date, no research study has used knowledge translation (KT) to increase knowledge of EBP specific to OTs managing post-stroke USN. The first manuscript of this thesis explores how the "Knowledge to Action Process" model developed by Graham and colleagues, can be use

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Fordell, Helena. "Virtual Reality for Enriched Rehabilitation of Stroke Patients with Spatial Neglect : Diagnostics and the Rehabilitation Effect on Spatial Attention and Neuronal Activity." Doctoral thesis, Umeå universitet, Institutionen för farmakologi och klinisk neurovetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-141920.

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Background: Approximately a third of all stroke patients develop spatial neglect, a debilitating symptom associated with poor outcome. Spatial neglect is clinically defined as a deficit in processing and responding to stimuli presented on the contralesional side of the body, or the space surrounding that side of the body. The heterogenetic, multi-sensory nature of the symptoms renders it difficult to diagnose and treat; therefor effective methods for screening and intervention for neglect are needed. Virtual reality (VR) is a method of brain–computer interaction that involves realtime simulati

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21

Braem, Bérenger. "Perception des orientations et intégration multisensorielle." Thesis, Lille 3, 2014. http://www.theses.fr/2014LIL30010/document.

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La perception de la verticale repose sur l’intégration des informations vestibulaires, visuelles et somesthésiques. Elle est généralement étudiée dans la modalité visuelle (VVS) ou haptique (VHS) et plus rarement dans la modalité visuo-haptique (VVHS). Cette modalité pose la question de l’intégration des informations mises en jeu par ces deux modalités dans la perception multimodale et du modèle cognitif sous-jacent. Se pose également la question de l'effet des lésions cérébrales perturbant la perception spatiale (hémi-négligence) dans la perception de la verticale.Une comparaison des VVS, VHS

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Ogourtsova, Tatiana. "The involvement of the superior colliculi in post-stroke unilateral spatial neglect: a pilot study." Thesis, McGill University, 2010. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=92279.

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The underlying mechanisms of the unilateral spatial neglect (USN), a highly prevalent and disabling consequence of stroke that responds poorly to existing interventions, remain unclear. Animal research suggests that post-stroke USN may be related in part to a disruption of visual attention mediated through the midbrain superior colliculi (SC). However, little attention has been placed on studying this mechanism in humans with post-stroke USN.<br>The first manuscript of this thesis presents a literature review on the implications of the SC in USN and reviews the rationale and potential for USN

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VERONELLI, LAURA. "Spatial and linguistic encoding of orthographic material. Evidence from neglect patients in line bisection tasks." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2013. http://hdl.handle.net/10281/43292.

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In line bisection tasks, right-brain damaged patients with unilateral spatial neglect (USN) exhibit a rightward deviation with respect to the objective midpoint of the stimulus, while in neurologically unimpaired participants a reversed bias (“pseudoneglect”) has been consistently reported. In a study with healthy subjects, Arduino et al. (2010) suggested the existence of partially independent mechanisms involved in word and line bisection, not only linguistic but also visuo-perceptual. Furthermore, both lexical and syntactic factors are shown to modulate the reading performance in patients wi

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Matthias, Ellen. "The influence of the level of alertness on spatial and non-spatial components of visual attention in healthy subjects and neglect patients." Diss., kostenfrei, 2008. http://edoc.ub.uni-muenchen.de/8898/.

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Li, Dongyun [Verfasser], and Hans-Otto [Akademischer Betreuer] Karnath. "Trunk rotation affects temporal order judgments : evidence from spatial neglect / Dongyun Li ; Betreuer: Hans-Otto Karnath." Tübingen : Universitätsbibliothek Tübingen, 2016. http://d-nb.info/1164168371/34.

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Guest, Richard M. "The diagnosis of visuo-spatial neglect through the computer-based analysis of hand-executed drawing tasks." Thesis, University of Kent, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.310163.

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27

Afifi, Linda Miriam. "The neural basis of behavioral recovery of chronic visuo-spatial neglect using repetitive transcranial magnetic stimulation." Thesis, Boston University, 2012. https://hdl.handle.net/2144/12258.

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Thesis (Ph.D.)--Boston University<br>High frequency repetitive Transcranial Magnetic Stimulation (rTMS) has been used clinically on perilesional cortex to attenuate the neurological consequences of cerebral injuries. Presently the clinical benefits of rTMS remain controversial due to the high level of inter-individual variability in response to treatment. We explored the behavioral efficacy of multisession rTMS and studied the structural and metabolic characteristics underlying the recovery of visuo-spatial functions after unilateral parietal injury. A group of adult cats (n=12) underwent foc

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Guilbert, Alma. "Evaluation et prise en charge du syndrome de négligence spatiale unilatérale : apports de la modalité auditive et de la musique." Thesis, Lille 3, 2016. http://www.theses.fr/2016LIL30033/document.

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L'objectif de cette thèse était d'étudier la modalité auditive dans le syndrome de négligence spatiale unilatérale (NSU) que ce soit dans l'évaluation ou dans la prise en charge. Notre première hypothèse défendue était que, bien que la NSU touche aussi la modalité auditive, des différences dues aux spécificités de chaque modalité existent entre les symptômes auditifs et visuels de ce syndrome neuropsychologique. En conséquence, notre seconde hypothèse était que les spécificités propres à la modalité auditive pourraient permettre de pallier les déficits attentionnels rencontrés en modalité visu

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Antoine, Sophie. "The spatial nature of ordinal information in verbal working memory." Doctoral thesis, Universite Libre de Bruxelles, 2016. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/238833.

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At the beginning of this work, recent studies had evidenced a tight link between serial order in verbal working memory and space processing. In a first study, we investigated the nature of this link. By discarding the possibility that it results from conceptual associations, our results favoured the idea that the representation of serial order is intrinsically of a spatial nature. This led us to hypothesize that a deficit of space processing should be accompanied by a deficit of serial order. To test this hypothesis, we investigated verbal working memory abilities in a group of brain-damaged p

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Lunven, Marine. "Les disconnexions de la substance blanche comme facteur prédictif de l’évolution de la négligence spatiale unilatérale." Thesis, Lyon 1, 2014. http://www.theses.fr/2014LYO10352.

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La négligence spatiale unilatérale (NSU) est une affection neurologique fréquemment observée après une lésion de l'hémisphère cérébral droit. Les patients ne vont plus être en mesure de prendre en compte les stimuli présentés dans l'hémi-espace gauche. La NSU participe à l'aggravation du handicap des patients, par la réduction des possibilités en rééducation motrice et cognitive à la phase aigue d'un accident vasculaire comme sur le long terme. L'identification des facteurs prédictifs de sa chronicité pourrait permettre une meilleure prise en charge clinique de ces patients. Nous avons étudié

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Marques, Carlos Leonardo Sacomani. "Validação da escala de Catherine Bergego em pacientes com Negligência Espacial Unilateral após acidente vascular cerebral." Botucatu, 2018. http://hdl.handle.net/11449/154396.

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Orientador: Rodrigo Bazan<br>Resumo: Introdução: A negligência espacial unilateral (NEU) é uma manifestação prevalente entre os pacientes com acidente vascular cerebral, porém seu diagnóstico é difícil e sua mensuração e repercussão na vida do paciente carecem de métodos de avaliação. A escala de Catherine Bergego tem por objetivo mensurar esse acometimento e o impacto no cotidiano do paciente. Não há validação desta escala na população brasileira. Objetivo: Avaliar a confiabilidade, compreensão e aceitação da versão em português da escala CBS em paciente com diagnóstico clínico de negligência

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Zhou, Yueqin. "Spatial Analysis of Substantiated Child Maltreatment in Metro Atlanta, Georgia." Digital Archive @ GSU, 2006. http://digitalarchive.gsu.edu/geosciences_theses/7.

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Identifying high-risk areas for child maltreatment to ultimately aid public health agencies for interventions is necessary for protecting children at high risk. Rates of substantiated neglect and physical/emotional abuse in 2000-2002 are computed for the census tracts in the urban area of five counties in Metro Atlanta, Georgia, and analyzed using spatial regression to determine their relationships with twelve risk variables computed from the Vital Records births and the 2000 Census data. After accounting for multicollinearity among risk variables and spatial autocorrelation among observation

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MASSETTI, GEMMA. "A DIGITAL BATTERY FOR UNILATERAL SPATIAL NEGLECT: HOW NEW TECHNOLOGIES CAN MAKE THE NEUROPSYCHOLOGICAL EVALUATION MORE ACCURATE AND SENSITIVE." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2022. http://hdl.handle.net/10281/374741.

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La negligenza spaziale unilaterale (NSU) è un disturbo neuropsicologico dovuto a eventi cerebrovascolari (CVA), tumori cerebrali e lesioni cerebrali acquisite. I pazienti con NSU falliscono nell’orientarsi verso, rispondere e riportare eventi sensoriali che si verificano nel lato dello spazio e del corpo controlaterale al lato della lesione (tipicamente, il lato sinistro in pazienti con danno cerebrale destro), e nell’esplorare queste porzioni di spazio. La valutazione della NSU si basa soprattutto sulla valutazione delle prestazioni dei pazienti a test carta-e-matita. Tuttavia, sono ora dispo

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CARELLI, Laura. "Modulation of visuo-spatial attention by means of emotional facial and bodily expressions: theoretical basis and empirical evidence." Doctoral thesis, Università degli studi di Bergamo, 2011. http://hdl.handle.net/10446/858.

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Faces and bodies are both efficient in communicating emotions and attracting attention automatically. However, faces seem especially informative when seen in the near space, whereas bodies are particularly effective in the far space.<br>In the patient’s subgroup showing near-space neglect, a significant effect in reducing rightward bisection errors was found with both fearful and happy facial expressions presented in the near space, and with fearful and happy bodies presented in the far space. Conversely, in the patient’s subgroup showing far-space neglect, the most consistent reduction was ob

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SPOSITO, AMBRA VALENTINA. "The spatial metric representation of body parts: behavioural and neuropsychological evidence." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2011. http://hdl.handle.net/10281/20101.

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The mental representation of the body is being a subject of intensive research from different perspectives starting from the 20th Century. Indeed, the body is a peculiar object for the brain, being at the same time a physical, space-occupying object and the critical mean for perception and action in the world around us. The present doctoral work focussed on the spatial representation of the body; in particular it was investigated whether the body holds a specific metric representation, which is supposed to be useful for action programming and interaction with the environment, as introduced in

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Volkening, Katharina [Verfasser], and Ingo [Akademischer Betreuer] Keller. "Processing of time and space in visuo-spatial neglect and the influence of galvanic vestibular stimulation / Katharina Volkening. Betreuer: Ingo Keller." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2014. http://d-nb.info/1101344156/34.

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Schintu, Selene. "The action of prism adaptation on intact visuospatial cognition : when time matters to space." Thesis, Lyon 1, 2014. http://www.theses.fr/2014LYO10320/document.

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Nous sommes fonctionnellement et structurellement asymétriques. La symétrie parfaite que nous expérimentons subjectivement en observant l'espace qui nous entoure est, dans une certaine mesure, une illusion. La cognition visuospatiale, comme indiqué par les tâches de bissection de lignes, est généralement biaisée à gauche chez les sujets sains et à droite suite à des lésions de l'hémisphère droit causant la Négligence Spatiale Unilatérale (NSU). Ces biais peuvent être modulés et l'adaptation prismatique (AP) a démontré sa capacité à réduire les symptômes de la NSU et à induire des comportements

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ALBONICO, ANDREA. "Dissociation between the focal and orientation component of spatial attention in detection, discrimination and reading tasks." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2016. http://hdl.handle.net/10281/100364.

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In our daily life, attention plays a fundamental role in governing our visual experience. Indeed, every visual experience consists in an overwhelming amount of visual information reaching our visual system. Selective attention allows us to select the relevant information, which is important for our goals, while ignoring the irrelevant information in our environment. However, selective attention is not a unitary notion, but a multi-faceted concept constituted by different components. Several models on how the attentional resources can be allocated in the space identify two distinct components:

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Romeo, Zaira. "The cognitive demand of multitasking under visuo-spatial processing: Assessment, ERPs and electrophysiology of brain networks in chronic stroke patients." Doctoral thesis, Università degli studi di Padova, 2018. http://hdl.handle.net/11577/3426801.

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This thesis investigates several aspects of visuo-spatial processing from a clinical, electrophysiological and neurofunctional perspective, with the aim of enriching our understanding of neurological syndromes that affect such fundamental perceptual-cognitive skill. A common thread is the use of cognitive load as a mean to study spatial awareness deficits following brain stroke. We show that increased task demands uncovers pathological spatial asymmetries both in right and left hemisphere damaged patients that performed at ceiling in standard paper-and-pencil tests. Although visuo-spatial defi

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Patel, Vaidehi. "Effects of Early Life Neglect on Cocaine use during adolescence and subsequent effect on FGF-2 levels in adulthood." Kent State University Honors College / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ksuhonors1588276506770239.

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Blini, Elvio A. "Biases in Visuo-Spatial Attention: from Assessment to Experimental Induction." Doctoral thesis, Università degli studi di Padova, 2016. http://hdl.handle.net/11577/3424480.

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In this work I present several studies, which might appear rather heterogeneous for both experimental questions and methodological approaches, and yet are linked by a common leitmotiv: spatial attention. I will address issues related to the assessment of attentional asymmetries, in the healthy individual as in patients with neurological disorders, their role in various aspects of human cognition, and their neural underpinning, driven by the deep belief that spatial attention plays an important role in various mental processes that are not necessarily confined to perception. What follows is or

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Luvizutto, Gustavo José [UNESP]. "Investigação de negligência espacial unilateral após Acidente Vascular Cerebral." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/139529.

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Submitted by Gustavo José Luvizutto null (gluvizutto@fmb.unesp.br) on 2016-06-17T14:29:20Z No. of bitstreams: 1 Tese_Doutorado_Gustavo_Final.pdf: 2479589 bytes, checksum: 29a51ed15da908051b8667068b430e40 (MD5)<br>Rejected by Juliano Benedito Ferreira (julianoferreira@reitoria.unesp.br), reason: Solicitamos que realize uma nova submissão seguindo a orientação abaixo: O arquivo submetido não contém o certificado de aprovação. A versão submetida por você é considerada a versão final da dissertação/tese, portanto não poderá ocorrer qualquer alteração em seu conteúdo após a aprovação. Cor

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Conti, Daniela. "Robotics and intellectual disabilities: models and treatment." Doctoral thesis, Università di Catania, 2016. http://hdl.handle.net/10761/3818.

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Public perception of an emerging scientific and technological product is important for the acceptance of such a product. Ethical studies based on public surveys toward using robots in eldercare and other applications, showed a high acceptance for pet-like therapeutic robot, the human-like care robot, and a surveillance care robot. However, it also reported a rejection in the case of a bathing robot because of the judgment that the robot-based action would be inferior to the human-based action and that it would take away jobs from human workers. Taking into account this scenario, chapter IV (4.

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Luvizutto, Gustavo José. "Investigação de negligência espacial unilateral após Acidente Vascular Cerebral." Botucatu, 2016. http://hdl.handle.net/11449/139529.

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Orientador: Luiz Antônio de Lima Resende<br>Resumo: Introdução: A negligência espacial unilateral (NEU) é caracterizada pela incapacidade de reportar ou responder pessoas ou objetos do lado contralateral à lesão cerebral, e ocorre principalmente após Acidente Vascular Cerebral (AVC) do lobo parietal direito, sendo associada à pior desfecho funcional à longo prazo. Objetivo: Os objetivos desta tese foram: normatizar os principais testes diagnósticos de NEU e verificar a relação com fatores sócio-demográficos na população brasileira; avaliar as variáveis bioquímicas que interferem na NEU na fase

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SEDDA, GIULIA. "The interplay between movement and perception: how interaction can influence sensorimotor performance and neuromotor recovery." Doctoral thesis, Università degli studi di Genova, 2020. http://hdl.handle.net/11567/1011732.

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Movement and perception interact continuously in daily activities. Motor output changes the outside world and affect perceptual representations. Similarly, perception has consequences on movement. Nevertheless, how movement and perception influence each other and share information is still an open question. Mappings from movement to perceptual outcome and vice versa change continuously throughout life. For example, a cerebrovascular accident (stroke) elicits in the nervous system a complex series of reorganization processes at various levels and with different temporal scales. Functiona

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Fourtassi, Maryam. "Étude des mouvements oculaires au cours de l’imagerie mentale visuelle, chez les sujets sains et chez ceux atteints d’une négligence représentationnelle ou d’une hémianopsie latérale homonyme." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSE1287/document.

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L'imagerie mentale visuelle est généralement accompagnée de mouvements spontanés des yeux qui ne sont pas arbitraires mais reflètent le contenu spatial de cette imagerie. Ce travail de thèse avait pour principal objectif l'utilisation de l'enregistrement des mouvements oculaires afin d'étudier les représentations mentales chez les sujets sains et les sujets atteints de lésions cérébrales et ainsi d'en explorer les mécanismes, la dynamique, les référentiels et les substrats neuronaux. Nous avons enregistré les mouvements des yeux pendant le rappel des villes de France à partir de la mémoire à l

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Norton, Daniel. "Functional characterization of spatial neglect in Parkinson's disease." Thesis, 2015. https://hdl.handle.net/2144/14053.

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Parkinson’s disease (PD) is associated with perceptual as well as motor disturbances. Unlike those with right-side onset (RPD), individuals whose motor symptoms begin on the left side of the body (LPD) may experience mild neglect of left hemispace. The functional cause of these perceptual abnormalities in LPD is unknown; possibilities include altered eye movements, changes in perceptual representation of left versus right hemispace, and attentional abnormalities. Three studies explored these possibilities in non-demented individuals with mild-moderate idiopathic PD (24-36 per experiment) an

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MANFREDINI, Alessia. "The illusory distortion of space in spatial neglect." Doctoral thesis, 2014. http://hdl.handle.net/11562/710362.

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La teoria anisometrica dello spazio (SAH) per la sindrome del neglect postula una progressiva espansione dello spazio lungo l’emispazio controlesionale e una progressiva compressione lungo l’emispazio ipsilesionale, secondo una scala logaritmica. Tale distorsione può essere paragonata agli effetti di una famosa illusione visiva: l’illusione di Oppel-Kundt, secondo cui uno spazio percepito come pieno appare più largo di uno spazio vuoto di uguali dimensioni. Nel primo esperimento ci siamo serviti dell’illusione di O-K in due differenti sessioni sperimentali: tempi di reazione e compito di aggiu

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Vasquez, Brandon Paul. "DIRECTION SPECIFIC COSTS TO SPATIAL WORKING MEMORY FROM SACCADIC AND SPATIAL REMAPPING." Thesis, 2007. http://hdl.handle.net/10012/3290.

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Right parietal lesions often lead to neglect, in which patients fail to attend to leftward stimuli. Recent models of neglect suggest that, in addition to attentional impairments, patients demonstrate impairments of spatial remapping and/or spatial working memory (SWM). Although spatial remapping could be considered a kind of spatial memory process itself (i.e., updating remembered locations based on anticipated saccade outcomes), the two processes operate on very different time scales (milliseconds versus seconds). In the present study, the influence of saccadic and spatial remapping on SWM wa

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Hsing-Fen, Tu. "Performance on Spatial Attention Tests by Adults with and without Unilateral Stroke: Functional Implications of spatial neglect." 2006. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0001-2507200622020300.

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