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Artículos de revistas sobre el tema "Perceptual mapping"

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Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 19 de febrero de 2022

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1

Arfib, D., J. M. Couturier, L. Kessous y V. Verfaille. "Strategies of mapping between gesture data and synthesis model parameters using perceptual spaces". Organised Sound 7, n.º 2 (agosto de 2002): 127–44. http://dx.doi.org/10.1017/s1355771802002054.

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This paper is about mapping strategies between gesture data and synthesis model parameters by means of perceptual spaces. We define three layers in the mapping chain: from gesture data to gesture perceptual space, from sound perceptual space to synthesis model parameters, and between the two perceptual spaces. This approach makes the implementation highly modular. Both perceptual spaces are developed and depicted with their features. To get a simple mapping between the gesture perceptual subspace and the sound perceptual subspace, we need to focus our attention on the two other mappings. We explain the mapping types: explicit/implicit, static/dynamic. We also present the technical and aesthetical limits introduced by mapping. Some practical examples are given of the use of perceptual spaces in experiments done at LMA in a musical context. Finally, we discuss several implications of the mapping strategies: the influence of chosen mapping limits onto performers' virtuosity, and the incidence of mapping on the learning process with virtual instruments and on improvisation possibilities.

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2

UR, Orth y J. Turečková. "Segmenting the tourism market using perceptual and attitudinal mapping". Agricultural Economics (Zemědělská ekonomika) 48, No. 1 (29 de febrero de 2012): 36–48. http://dx.doi.org/10.17221/5286-agricecon.

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Decreasing numbers of tourists to the Czech Republic point at a weakening competitive position of Czech destinations during the most recent years. For many communities, tourism may be a short-lived economic dream when understanding of tourists´ perceptions and travel motives is lacking. The two objectives pursued in this study are 1) an identification of the positions of competing destinations and 2) an a-posteriori segmentation with psychographic variables. Market segmentation becomes the crucial factor in the strategic design process of target marketing. Like many other markets, tourism markets do not respond homogeneously to marketing activities. Subdividing visitors into useful groups may provide a basis for competitive advantage. Our study establishes taxonomy of visitors to Southern Moravia. The study tries to overcome well-known insufficiencies of single segmentation approaches by exploiting the advantage of the multivariate nature of combined push factors, pull factors, and other factors of more restrictive nature (i.e. time and money). The segmentation task employs multivariate data analysis techniques such as factor analysis, cluster analysis and multi-dimensional scaling. Recent research on the European Vacation Style Typology is incorporated.

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3

Proctor, Robert W., Huifang Wang y Kim-Phuong L. Vu. "Influences of different combinations of conceptual, perceptual, and structural similarity on stimulus-response compatibility". Quarterly Journal of Experimental Psychology Section A 55, n.º 1 (febrero de 2002): 59–74. http://dx.doi.org/10.1080/02724980143000163.

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This study evaluated the hypothesis that an increase in set-level stimulus-response compatibility produces facilitation for congruent mappings and interference for incongruent mappings. The degree of set-level compatibility was manipulated by varying combinations of conceptual, perceptual, and structural similarity. Experiment 1 varied perceptual similarity, by combining two stimulus codes (spatial, verbal) with two response modalities (manual, vocal) for orthogonal spatial dimensions, which have structural similarity. The element-level mapping effect did not vary as a function of the code-modality relation, in contrast to findings obtained with parallel spatial dimensions, which also have conceptual similarity. Experiment 2 manipulated combinations of conceptual and perceptual similarity by combining vertical and horizontal stimulus and response orientations, using verbal or spatial stimuli and vocal responses. The element-level mapping effect was larger for parallel than orthogonal orientations, with congruent mappings showing facilitation and incongruent mappings showing interference. The largest effect was facilitation for parallel orientations with the verbal-vocal set, consistent with the view that perceptual similarity contributes to performance primarily when responding with the identity of the stimulus. Our results indicate that conceptual similarity, but not perceptual similarity, produces the facilitation/interference pattern suggestive of automatic activation of the corresponding response regardless of mapping.

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4

Huber, Joel y Richard M. Johnson. "APM System for Adaptive Perceptual Mapping". Journal of Marketing Research 25, n.º 1 (febrero de 1988): 119. http://dx.doi.org/10.2307/3172939.

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5

Krishnatray, Pradeep, Subhadip Roy y Rahul Gadekar. "Perceptual Mapping of Hindi News Channels". Journal of Creative Communications 5, n.º 1 (marzo de 2010): 47–62. http://dx.doi.org/10.1177/097325861100500103.

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6

Katahira, Hotaka. "Perceptual Mapping Using Ordered Logit Analysis". Marketing Science 9, n.º 1 (febrero de 1990): 1–17. http://dx.doi.org/10.1287/mksc.9.1.1.

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7

Ganguly, Indroneil, Ivan Eastin y Douglas MacLachlan. "An analysis of the US decking materials market: perceptual mapping approach". Canadian Journal of Forest Research 41, n.º 4 (abril de 2011): 669–81. http://dx.doi.org/10.1139/x10-244.

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This paper analyzes the product positioning and market demand of preservative-treated, naturally decay-resistant, and composite decking materials in the United States using an innovative perceptual mapping technique. Market analysis using perceptual mapping is generally used for end-user market scenarios for strategic planning. This paper establishes that the perceptual mapping technique can also be a valuable tool for analyzing the US decking products market, which is predominantly a business-to-business (B2B) market. Using perceptual mapping of the US decking market, this paper proposes a method for incorporating market demand density on a perceptual space, incorporating a kernel regression based nonparametric demand distribution. Representation of products and demand distribution on the same perceptual space in the proposed mapping technique enables simultaneous visualization of product positioning and demand density distribution in the marketplace. The mapping results obtained in this paper will enable business decision makers in the US decking industry to strategically position their offerings based on existing product positioning and market demand distribution. The data used for the study were collected through a national survey of 368 professional deck builders and homebuilders.

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8

Lansford, Kaitlin L. y Julie M. Liss. "Vowel Acoustics in Dysarthria: Mapping to Perception". Journal of Speech, Language, and Hearing Research 57, n.º 1 (febrero de 2014): 68–80. http://dx.doi.org/10.1044/1092-4388(2013/12-0263).

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Purpose The aim of the present report was to explore whether vowel metrics, demonstrated to distinguish dysarthric and healthy speech in a companion article (Lansford & Liss, 2014), are able to predict human perceptual performance. Method Vowel metrics derived from vowels embedded in phrases produced by 45 speakers with dysarthria were compared with orthographic transcriptions of these phrases collected from 120 healthy listeners. First, correlation and stepwise multiple regressions were conducted to identify acoustic metrics that had predictive value for perceptual measures. Next, discriminant function analysis misclassifications were compared with listeners' misperceptions to examine more directly the perceptual consequences of degraded vowel acoustics. Results Several moderate correlative relationships were found between acoustic metrics and perceptual measures, with predictive models accounting for 18%–75% of the variance in measures of intelligibility and vowel accuracy. Results of the second analysis showed that listeners better identified acoustically distinctive vowel tokens. In addition, the level of agreement between misclassified-to-misperceived vowel tokens supports some specificity of degraded acoustic profiles on the resulting percept. Conclusion Results provide evidence that degraded vowel acoustics have some effect on human perceptual performance, even in the presence of extravowel variables that naturally exert influence in phrase perception.

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9

Shaury, Sofyan. "ANALISIS POSITIONING E-WALLET BERDASARKAN PERCEPTUAL MAPPING". SEIKO : Journal of Management & Business 3, n.º 1 (16 de diciembre de 2019): 187. http://dx.doi.org/10.37531/sejaman.v3i1.531.

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10

Pan, David W. y John A. W. Baker. "PERCEPTUAL MAPPING OF BANNED SUBSTANCES IN ATHLETICS". Journal of Sport and Social Issues 22, n.º 2 (mayo de 1998): 170–82. http://dx.doi.org/10.1177/019372398022002004.

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11

Dugay, Fabienne, Ivar Farup y Jon Y. Hardeberg. "Perceptual evaluation of color gamut mapping algorithms". Color Research & Application 33, n.º 6 (diciembre de 2008): 470–76. http://dx.doi.org/10.1002/col.20443.

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12

NESTRUD, MICHAEL A. y HARRY T. LAWLESS. "PERCEPTUAL MAPPING OF APPLES AND CHEESES USING PROJECTIVE MAPPING AND SORTING". Journal of Sensory Studies 25, n.º 3 (19 de marzo de 2010): 390–405. http://dx.doi.org/10.1111/j.1745-459x.2009.00266.x.

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13

Steenkamp, Jan-Benedict E. M., Hans C. M. Van Trijp y Jos M. F. Ten Berge. "Perceptual Mapping Based on Idiosyncratic Sets of Attributes". Journal of Marketing Research 31, n.º 1 (febrero de 1994): 15–27. http://dx.doi.org/10.1177/002224379403100102.

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The authors describe a compositional perceptual mapping procedure, unrestricted attribute-elicitation mapping (UAM), which allows consumers to describe and rate the brands in their own terminology and thus relaxes the restrictive assumptions of traditional compositional mapping techniques regarding the structure and interpretation of the set of attributes. They compare the performance of three estimation techniques for constructing a group space based on the idiosyncratic data, namely, INDSCAL, CANCOR, and generalized procrustes analysis (GPA). Their findings indicate that the three estimation techniques perform about equally well. UAM also is compared with traditional compositional mapping. They find that UAM is superior on fit of the solution, interpretability, and sample reliability. UAM probably holds an edge with respect to data collection. Traditional compositional mapping is superior on ease of data analysis. No major difference was found on predictive validity and structural reliability.

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14

Fisher, Donald L. y Christopher Young. "Perceptual Learning: Theory and Practice". Proceedings of the Human Factors Society Annual Meeting 31, n.º 9 (septiembre de 1987): 1049–53. http://dx.doi.org/10.1177/154193128703100928.

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Perceptual learning is required in a number of different contexts. Certain paradigms have been found to speed this learning, others to slow if not altogether inhibit it. The objectives of this study are twofold. First, an experimental test is described of an alternative explanation or model of the finding that perceptual learning is facilitated in consistent mapping tasks, but not in varied mapping ones (Schneider and Shiffrin, 1977). Second, it is shown how the model can be used to select from a set of equally acceptable graphical or symbolic representations of an object that representation which minimizes the time it takes to find the object in a visual search task.

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15

Zulganef. "Perceptual Mapping of Higher Education Prospective Students in Bandung, Indonesia: A Base for a Strategy". International Journal of Psychosocial Rehabilitation 24, n.º 02 (13 de febrero de 2020): 3429–35. http://dx.doi.org/10.37200/ijpr/v24i2/pr200660.

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16

Steenkamp, Jan-Benedict E. M., Hans C. M. Van Trijp y Jos M. F. Ten Berge. "Perceptual Mapping Based on Idiosyncratic Sets of Attributes". Journal of Marketing Research 31, n.º 1 (febrero de 1994): 15. http://dx.doi.org/10.2307/3151943.

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17

Huber, Joel. "Book Review: Apm System for adaptive Perceptual Mapping". Journal of Marketing Research 25, n.º 1 (febrero de 1988): 119–21. http://dx.doi.org/10.1177/002224378802500120.

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18

Govindarajan, Krishna. "Listeners' perceptual mapping of locus equations and variability". Behavioral and Brain Sciences 21, n.º 2 (abril de 1998): 266–67. http://dx.doi.org/10.1017/s0140525x9830117x.

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Although an individual speaker's productions obey locus equations, whether listeners' perceptions are based on them needs further exploration. Comparing the results from the perceptual experiments to predicted identifications, one sees qualitative similarities and some discrepancies. However, the variability of locus equations and individual consonant-vowel (CV) tokens across speakers seems problematic if listeners are using locus equations for perception.

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19

Pastore, Richard E., James W. Liberto y Edward J. Crawley. "Mapping multidimensional perceptual consonant space for place contrasts". Journal of the Acoustical Society of America 100, n.º 4 (octubre de 1996): 2694. http://dx.doi.org/10.1121/1.417053.

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20

Kasilingam, R. y G. Jayabal. "Preference and Perceptual Mapping of Mutual Fund Schemes". Asia Pacific Business Review 7, n.º 2 (abril de 2011): 48–59. http://dx.doi.org/10.1177/097324701100700205.

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21

Teas, R. Kenneth y Terry H. Grapentine. "Testing market positioning themes: a perceptual mapping approach". Journal of Marketing Communications 10, n.º 4 (diciembre de 2004): 267–88. http://dx.doi.org/10.1080/1352726042000249346.

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22

Harmening, W. M., W. S. Tuten, A. Roorda y L. C. Sincich. "Mapping the Perceptual Grain of the Human Retina". Journal of Neuroscience 34, n.º 16 (16 de abril de 2014): 5667–77. http://dx.doi.org/10.1523/jneurosci.5191-13.2014.

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23

Khan, Ishtiaq Rasool, Wajid Aziz y Seong-O. Shim. "Tone-Mapping Using Perceptual-Quantizer and Image Histogram". IEEE Access 8 (2020): 31350–58. http://dx.doi.org/10.1109/access.2020.2973273.

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24

Iannàccaro, Gabriele y Vittorio Dell'Aquila. "Mapping languages from inside: Notes on perceptual dialectology". Social & Cultural Geography 2, n.º 3 (enero de 2001): 265–80. http://dx.doi.org/10.1080/14649360120073851.

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25

Kohli, Chiranjeev S. y Lance Leuthesser. "Product Positioning: A Comparison of Perceptual Mapping Techniques". Journal of Product & Brand Management 2, n.º 4 (abril de 1993): 10–19. http://dx.doi.org/10.1108/10610429310047660.

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26

Byrnes, Nadia K., Michael A. Nestrud y John E. Hayes. "Perceptual Mapping of Chemesthetic Stimuli in Naive Assessors". Chemosensory Perception 8, n.º 1 (22 de marzo de 2015): 19–32. http://dx.doi.org/10.1007/s12078-015-9178-7.

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27

Fox, Richard J. "Perceptual mapping using the basic structure matrix decomposition". Journal of the Academy of Marketing Science 16, n.º 1 (marzo de 1988): 47–59. http://dx.doi.org/10.1007/bf02723325.

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28

Sarfraz, M. Saquib y Rainer Stiefelhagen. "Deep Perceptual Mapping for Cross-Modal Face Recognition". International Journal of Computer Vision 122, n.º 3 (23 de julio de 2016): 426–38. http://dx.doi.org/10.1007/s11263-016-0933-2.

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29

Gibbs, Raymond W. y Eric A. Berg. "Embodied metaphor in perceptual symbols". Behavioral and Brain Sciences 22, n.º 4 (agosto de 1999): 617–18. http://dx.doi.org/10.1017/s0140525x99312140.

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We agree with Barsalou's claim about the importance of perceptual symbols in a theory of abstract concepts. Yet we maintain that the richness of many abstract concepts arises from the metaphorical mapping of recurring patterns of perceptual, embodied experience to provide essential structure to these abstract ideas.

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30

Zhao, N., CF Reinhart y JA Paradiso. "Image-based perceptual analysis of lit environments". Lighting Research & Technology 51, n.º 5 (19 de julio de 2018): 704–24. http://dx.doi.org/10.1177/1477153518786768.

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Modern lighting systems typically provide a number of control parameters, e.g. colour and intensity, which allows nearly infinite possible configurations in one single room. The growing complexity of control makes it increasingly challenging for the user to configure the system and fully utilize the additional degrees of freedom. In contrast, an intuitive control interface takes into account the perceptual meaning of the lighting configurations. Unfortunately, collecting user ratings to construct perceptual models for lit spaces is cumbersome. To address this problem, we introduce an image-based mapping method that can rapidly evaluate the perceptual impression of lighting scenes using photographs or renderings. We discuss potential applications, guidelines and limitations of this method. In summary, we were able to closely approximate ratings-based mapping (normalized dissimilarity value <0.04). Among three dimensionality reduction methods, principal component analysis achieved the lowest dissimilarity and required the least images with a resolution as low as six by six pixels. Furthermore, simulations revealed that one perceptual model might suffice for the same type of offices. Offices of different types, on the other hand, require new mapping.

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31

Bijmolt, Tammo H. A. y Michel Wedel. "A Comparison of Multidimensional Scaling Methods for Perceptual Mapping". Journal of Marketing Research 36, n.º 2 (mayo de 1999): 277. http://dx.doi.org/10.2307/3152099.

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32

Sengupta, Debashish y Ray Titus. "Mapping Perceptual Value Shifts in Timepieces through Lifestyle Associations". Indian Journal of Marketing 43, n.º 7 (18 de julio de 2013): 5. http://dx.doi.org/10.17010/ijom/2013/v43/i7/34014.

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33

Chen, Jiaqing, Andy C. H. Lee, Edward B. O’Neil, Mura Abdul-Nabi y Matthias Niemeier. "Mapping the anatomy of perceptual pseudoneglect. A multivariate approach". NeuroImage 207 (febrero de 2020): 116402. http://dx.doi.org/10.1016/j.neuroimage.2019.116402.

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34

Bijmolt, Tammo H. A. y Michel Wedel. "A Comparison of Multidimensional Scaling Methods for Perceptual Mapping". Journal of Marketing Research 36, n.º 2 (mayo de 1999): 277–85. http://dx.doi.org/10.1177/002224379903600211.

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35

Jung, Cheolkon y Tingting Sun. "Optimized Perceptual Tone Mapping for Contrast Enhancement of Images". IEEE Transactions on Circuits and Systems for Video Technology 27, n.º 6 (junio de 2017): 1161–70. http://dx.doi.org/10.1109/tcsvt.2016.2527339.

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36

Taha, TahaBasheer, Phaklen Ehkan y Ruzelita Ngadiran. "A New Perceptual Mapping Model Using Lifting Wavelet Transform". MATEC Web of Conferences 140 (2017): 01036. http://dx.doi.org/10.1051/matecconf/201714001036.

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37

Mina, Jennilyn C. "Brand Positioning of Hygienic Products Using Perceptual Mapping Technique". International Journal of Economics and Management Studies 7, n.º 2 (25 de febrero de 2020): 150–58. http://dx.doi.org/10.14445/23939125/ijems-v7i2p121.

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38

Nakauchi, Shigeki, Masahiro Imamura y Shiro Usui. "Color gamut mapping by minimizing perceptual differences between images". Systems and Computers in Japan 29, n.º 10 (octubre de 1998): 46–56. http://dx.doi.org/10.1002/(sici)1520-684x(199810)29:10<46::aid-scj5>3.0.co;2-k.

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39

Bowen, David L. y Richard H. Lyon. "Mapping perceptual attributes of sound to product design choices". Noise Control Engineering Journal 51, n.º 4 (2003): 271. http://dx.doi.org/10.3397/1.2839723.

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40

Kalinin, Pavel y Tatiana Burtseva. "Methodical bases of perceptual mapping of printing industry companies". SHS Web of Conferences 35 (2017): 01012. http://dx.doi.org/10.1051/shsconf/20173501012.

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41

Bijmolt, Tammo H. A. y Michel van de Velden. "Multiattribute perceptual mapping with idiosyncratic brand and attribute sets". Marketing Letters 23, n.º 3 (2 de febrero de 2012): 585–601. http://dx.doi.org/10.1007/s11002-012-9163-8.

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42

Fodness, Dale D. y Laura M. Milner. "A perceptual mapping approach to theme park visitor segmentation". Tourism Management 13, n.º 1 (marzo de 1992): 95–101. http://dx.doi.org/10.1016/0261-5177(92)90040-e.

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43

Waraich, Suniyya A. y Jonathan D. Victor. "Mapping perceptual spaces of objects and low-level features". Journal of Vision 21, n.º 9 (27 de septiembre de 2021): 1941. http://dx.doi.org/10.1167/jov.21.9.1941.

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44

Saxena, Richa Kalpesh y Shobha Menon. "Perceptual mapping of online video streaming platform in India". Asian Journal of Research in Marketing 10, n.º 4 (2021): 15–24. http://dx.doi.org/10.5958/2277-6621.2021.00008.6.

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45

Choi, Ho-Hyoung, Hyun-Soo Kang y Byoung-Ju Yun. "A Perceptual Tone Mapping HDR Images Using Tone Mapping Operator and Chromatic Adaptation Transform". Journal of Imaging Science and Technology 61, n.º 4 (1 de julio de 2017): 405041–4050412. http://dx.doi.org/10.2352/j.imagingsci.technol.2017.61.4.040504.

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46

Fasciani, Stefano y Lonce Wyse. "Vocal Control of Sound Synthesis Personalized by Unsupervised Machine Listening and Learning". Computer Music Journal 42, n.º 1 (abril de 2018): 37–59. http://dx.doi.org/10.1162/comj_a_00450.

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In this article we describe a user-driven adaptive method to control the sonic response of digital musical instruments using information extracted from the timbre of the human voice. The mapping between heterogeneous attributes of the input and output timbres is determined from data collected through machine-listening techniques and then processed by unsupervised machine-learning algorithms. This approach is based on a minimum-loss mapping that hides any synthesizer-specific parameters and that maps the vocal interaction directly to perceptual characteristics of the generated sound. The mapping adapts to the dynamics detected in the voice and maximizes the timbral space covered by the sound synthesizer. The strategies for mapping vocal control to perceptual timbral features and for automating the customization of vocal interfaces for different users and synthesizers, in general, are evaluated through a variety of qualitative and quantitative methods.

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47

Sawusch, James R. "Acoustic correlates and perceptual cues in speech". Behavioral and Brain Sciences 21, n.º 2 (abril de 1998): 283–84. http://dx.doi.org/10.1017/s0140525x98491179.

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Locus equations are supposed to capture a perceptual invariant of place of articulation in consonants. Synthetic speech data show that human classification deviates systematically from the predictions of locus equations. The few studies that have contrasted predictions from competing theories yield mixed results, indicating that no current theory adequately characterizes the perceptual mapping from sound to phonetic symbol.

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48

OKADOME, TAKESHI. "A FORMAL THEORY OF EARLY COGNITION DEVELOPMENT". Advances in Complex Systems 08, n.º 02n03 (junio de 2005): 229–60. http://dx.doi.org/10.1142/s0219525905000488.

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The formal theory of the development of early perception and motor control presented here deals with cognitive development as a mapping from a finite set of given experiences to a set of perceptual and motor-control functions. The theory involves seven constraints that uniquely define the mapping. The compatibility with observational phenomena and sufficiency of these constraints shows the validity of the theory. The principle underlying these constraints is a coding by the most efficient representation of information. The efficiency of representation is evaluated by the coding redundancy of given experiences defined as the number of real numbers that characterize experiences plus the size of the minimum continuous decoding function. The coding redundancy of experiences by the most efficient representation corresponds to the Kolmogorov complexity of the experiences. The mapping accounts for the dependence on neonatal experience of the development of perceptual and motor-control functions. This theory of development can also be seen as a metatheory of cognition that presents us a unified view of the diversity of perceptual and motor-control modules.

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49

Shao, Zhiyu, Juan Wu, Qiangqiang Ouyang, Cong He y Zhiyong Cao. "Multi-Layered Perceptual Model for Haptic Perception of Compliance". Electronics 8, n.º 12 (7 de diciembre de 2019): 1497. http://dx.doi.org/10.3390/electronics8121497.

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Haptic rendering of compliance is widely used in human–computer haptic interaction. Haptic impressions of virtual objects are usually controlled through rendering algorithms and devices. However, subjective feelings of compliance are easily affected by physical properties of objects, interactive modes, and so on. So it is important to ascertain the mapping relations between controlled physical parameters and subjective perceptual feelings. In this paper, a multi-layered perceptual model was built based on psychophysical experiments to discuss these relationships in a simplified scene. Interactive signals of physical stimuli are collected by the physical receptor layer, handled by the subjective classifier layer and finally generate the evaluation results of compliance. The physical perceptual layer is used to extract useful interaction features affecting perceptual results. The subjective classifier layer is used to analyze the perceptual dimensionality of the compliance perception. The final aim of the model is to determine the mapping relationships between interaction features and dimensions of perception space. Interactive features are extracted from the interaction data collected during the exploring process, perceptual dimensionality of the compliance perception was analyzed by the factor analysis method, and relations between hierarchical layers were obtained by multi-linear regression analysis. A verification test was performed to show whether the proposed model can predict the perceptual result of new samples well. The results indicate that the model was reliable to estimate the perceptual results of compliance with an accuracy of approximately 90%. This paper may contribute a lot to the design and improvement of human-computer interaction and intelligent sensing system.

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50

Jiang, Yuhong y Nancy Kanwisher. "Common Neural Mechanisms for Response Selection and Perceptual Processing". Journal of Cognitive Neuroscience 15, n.º 8 (1 de noviembre de 2003): 1095–110. http://dx.doi.org/10.1162/089892903322598076.

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Behavioral evidence supports a dissociation between response selection (RS; stimulus-to-response [S—R] mapping) and perceptual discrimination (PD): The former may be subject to a central processing bottleneck, whereas the latter is not (Pashler, 1994). We previously (Jiang & Kanwisher, 2003) identified a set of frontal and parietal regions involved in RS as those that produce a stronger signal when subjects follow a difficult S—R mapping rule than an easy mapping rule. Here, we test whether any of these regions are selectively activated by RS and not perceptual processing, as predicted by the central bottleneck view. In Experiment 1, subjects indicated which of four parallel lines was unique in length; PD was indexed by a higher BOLD response when the discrimination was difficult versus easy. Stimuli and responses were closely matched across conditions. We found that all regions-of-interest (ROIs) engaged by RS were also engaged by perceptual processing, arguing against the existence of mechanisms exclusively involved in RS. In Experiments 2 and 3, we asked what processes might go on in these ROIs, such that they could be recruited by both RS and perceptual processing. Our data argue against an account of this common activation in terms of spatial processing or general task difficulty. Thus, PD may recruit the same central processes that are engaged by RS.

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