A Head View-Invariant Representation of Gaze Direction in Anterior Superior Temporal Sulcus
| Autor: | Johan D. Carlin, Hamed Nili, Nikolaus Kriegeskorte, James B. Rowe, Andrew J. Calder |
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| Rok vydání: | 2011 |
| Předmět: |
Adult
Male Visual perception Adolescent media_common.quotation_subject Precuneus Eye contact Fixation Ocular Biology 050105 experimental psychology General Biochemistry Genetics and Molecular Biology Young Adult 03 medical and health sciences 0302 clinical medicine Underlying representation Parietal Lobe Report Perception Image Processing Computer-Assisted medicine Humans 0501 psychology and cognitive sciences 10. No inequality media_common Agricultural and Biological Sciences(all) Biochemistry Genetics and Molecular Biology(all) 05 social sciences Parietal lobe Superior temporal sulcus Magnetic Resonance Imaging Gaze Temporal Lobe medicine.anatomical_structure Pattern Recognition Visual Multivariate Analysis Visual Perception Female General Agricultural and Biological Sciences 030217 neurology & neurosurgery Cognitive psychology |
| Zdroj: | Current Biology |
| ISSN: | 0960-9822 |
| DOI: | 10.1016/j.cub.2011.09.025 |
| Popis: | Summary Humans show a remarkable ability to discriminate others' gaze direction, even though a given direction can be conveyed by many physically dissimilar configurations of different eye positions and head views. For example, eye contact can be signaled by a rightward glance in a left-turned head or by direct gaze in a front-facing head. Such acute gaze discrimination implies considerable perceptual invariance. Previous human research found that superior temporal sulcus (STS) responds preferentially to gaze shifts [1], but the underlying representation that supports such general responsiveness remains poorly understood. Using multivariate pattern analysis (MVPA) of human functional magnetic resonance imaging (fMRI) data, we tested whether STS contains a higher-order, head view-invariant code for gaze direction. The results revealed a finely graded gaze direction code in right anterior STS that was invariant to head view and physical image features. Further analyses revealed similar gaze effects in left anterior STS and precuneus. Our results suggest that anterior STS codes the direction of another's attention regardless of how this information is conveyed and demonstrate how high-level face areas carry out fine-grained, perceptually relevant discrimination through invariance to other face features. Highlights ► Response patterns in superior temporal sulcus (STS) code perceived gaze direction ► Gaze codes are invariant to head view and physical image features in anterior STS ► However, such socially irrelevant features do influence gaze codes in posterior STS ► Anterior STS represents where others attend, regardless of how this is conveyed |
| Databáze: | OpenAIRE |
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