Typical visual-field locations enhance processing in object-selective channels of human occipital cortex

Journal of Neurophysiology
Daniel Kaiser, Radoslaw M Cichy

Abstract

Natural environments consist of multiple objects, many of which repeatedly occupy similar locations within a scene. For example, hats are seen on people's heads, while shoes are most often seen close to the ground. Such positional regularities bias the distribution of objects across the visual field: hats are more often encountered in the upper visual field, while shoes are more often encountered in the lower visual field. Here we tested the hypothesis that typical visual field locations of objects facilitate cortical processing. We recorded functional MRI while participants viewed images of objects that were associated with upper or lower visual field locations. Using multivariate classification, we show that object information can be more successfully decoded from response patterns in object-selective lateral occipital cortex (LO) when the objects are presented in their typical location (e.g., shoe in the lower visual field) than when they are presented in an atypical location (e.g., shoe in the upper visual field). In a functional connectivity analysis, we relate this benefit to increased coupling between LO and early visual cortex, suggesting that typical object positioning facilitates information propagation across the vis...Continue Reading

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Jul 22, 2018·Cognition·Daniel Kaiser, Radoslaw M Cichy

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Citations

Aug 6, 2020·Cerebral Cortex·Genevieve L Quek, Marius V Peelen
Nov 24, 2019·Human Brain Mapping·Daniel KaiserRadoslaw M Cichy
Jul 16, 2021·Developmental Medicine and Child Neurology·Alexander T WilsonRobert C Tasker
Jul 4, 2021·Nature Communications·Michael F Bonner, Russell A Epstein
Oct 28, 2021·Journal of Cognitive Neuroscience·Daniel Kaiser, Radoslaw M Cichy

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