Perception and Processing of Faces in the Human Brain Is Tuned to Typical Feature Locations

Show simple item record de Haas, B en Schwarzkopf, Dietrich en Alvarez, I en Lawson, RP en Henriksson, L en Kriegeskorte, N en Rees, G en 2018-11-01T21:10:03Z en 2016 en
dc.identifier.citation The Journal of Neuroscience 36(36):9289-9302 07 Sep 2016 en
dc.identifier.issn 0270-6474 en
dc.identifier.uri en
dc.description.abstract Faces are salient social stimuli whose features attract a stereotypical pattern of fixations. The implications of this gaze behavior for perception and brain activity are largely unknown. Here, we characterize and quantify a retinotopic bias implied by typical gaze behavior toward faces, which leads to eyes and mouth appearing most often in the upper and lower visual field, respectively. We found that the adult human visual system is tuned to these contingencies. In two recognition experiments, recognition performance for isolated face parts was better when they were presented at typical, rather than reversed, visual field locations. The recognition cost of reversed locations was equal to ∼60% of that for whole face inversion in the same sample. Similarly, an fMRI experiment showed that patterns of activity evoked by eye and mouth stimuli in the right inferior occipital gyrus could be separated with significantly higher accuracy when these features were presented at typical, rather than reversed, visual field locations. Our findings demonstrate that human face perception is determined not only by the local position of features within a face context, but by whether features appear at the typical retinotopic location given normal gaze behavior. Such location sensitivity may reflect fine-tuning of category-specific visual processing to retinal input statistics. Our findings further suggest that retinotopic heterogeneity might play a role for face inversion effects and for the understanding of conditions affecting gaze behavior toward faces, such as autism spectrum disorders and congenital prosopagnosia.Faces attract our attention and trigger stereotypical patterns of visual fixations, concentrating on inner features, like eyes and mouth. Here we show that the visual system represents face features better when they are shown at retinal positions where they typically fall during natural vision. When facial features were shown at typical (rather than reversed) visual field locations, they were discriminated better by humans and could be decoded with higher accuracy from brain activity patterns in the right occipital face area. This suggests that brain representations of face features do not cover the visual field uniformly. It may help us understand the well-known face-inversion effect and conditions affecting gaze behavior toward faces, such as prosopagnosia and autism spectrum disorders. en
dc.publisher Society for Neuroscience en
dc.relation.ispartofseries Journal of Neuroscience en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
dc.rights.uri en
dc.rights.uri en
dc.title Perception and Processing of Faces in the Human Brain Is Tuned to Typical Feature Locations en
dc.type Journal Article en
dc.identifier.doi 10.1523/JNEUROSCI.4131-14.2016 en
pubs.issue 36 en
pubs.begin-page 9289 en
pubs.volume 36 en
dc.rights.holder Copyright: The authors en
dc.identifier.pmid 27605606 en
pubs.end-page 9302 en
dc.rights.accessrights en
pubs.subtype Article en
pubs.elements-id 650422 en Medical and Health Sciences en Optometry and Vision Science en
pubs.number 36 en
pubs.record-created-at-source-date 2017-08-18 en
pubs.dimensions-id 27605606 en

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