A retinotopic basis for the division of high-level scene processing between lateral and ventral human occipitotemporal cortex

Edward Harry Silson, Wai Yiu Chan, Richard Craig Reynolds, Dwight Jacob Kravitz, Chris Ian Baker

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

In humans, there is a repeated category-selective organization across the lateral and ventral surfaces of the occipitotemporal cortex. This apparent redundancy is often explained as a feedforward hierarchy, with processing within lateral areas preceding the processing within ventral areas. Here, we tested the alternative hypothesis that this structure better reflects distinct high-level representations of the upper (ventral surface) and lower (lateral surface) contralateral quadrants of the visual field, consistent with anatomical projections from early visual areas to these surfaces in monkey. Using complex natural scenes, we provide converging evidence from three independent functional imaging and behavioral studies. First, population receptive field mapping revealed strong biases for the contralateral upper and lower quadrant within the ventral and lateral scene-selective regions, respectively. Second, these same biases were observed in the position information available both in the magnitude and multivoxel response across these areas. Third, behavioral judgments of a scene property strongly represented within the ventral scene-selective area (open/closed), but not another equally salient property (manmade/ natural), were more accurate in the upper than the lower field. Such differential representation of visual space poses a substantial challenge to the idea of a strictly hierarchical organization between lateral and ventral scene-selective regions. Moreover, such retinotopic biases seem to extend beyond these regions throughout both surfaces. Thus, the large-scale organization of high-level extrastriate cortex likely reflects the need for both specialized representations of particular categories and constraints from the structure of early vision.

Original languageEnglish (US)
Pages (from-to)11921-11935
Number of pages15
JournalJournal of Neuroscience
Volume35
Issue number34
DOIs
StatePublished - Aug 26 2015

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Visual Cortex
Visual Fields
Haplorhini
Population

All Science Journal Classification (ASJC) codes

  • Neuroscience(all)

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A retinotopic basis for the division of high-level scene processing between lateral and ventral human occipitotemporal cortex. / Silson, Edward Harry; Chan, Wai Yiu; Reynolds, Richard Craig; Kravitz, Dwight Jacob; Baker, Chris Ian.

In: Journal of Neuroscience, Vol. 35, No. 34, 26.08.2015, p. 11921-11935.

Research output: Contribution to journalArticle

Silson, Edward Harry ; Chan, Wai Yiu ; Reynolds, Richard Craig ; Kravitz, Dwight Jacob ; Baker, Chris Ian. / A retinotopic basis for the division of high-level scene processing between lateral and ventral human occipitotemporal cortex. In: Journal of Neuroscience. 2015 ; Vol. 35, No. 34. pp. 11921-11935.
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