Inferior Occipital Gyrus Is Organized along Common Gradients of Spatial and Face-Part Selectivity - Research portal of Justus Liebig University Giessen:

Journal article

Inferior Occipital Gyrus Is Organized along Common Gradients of Spatial and Face-Part Selectivity

Authors list: de Haas, B; Sereno, MI; Schwarzkopf, DS

Publication year: 2021

Pages: 5511-5521

Journal: The Journal of Neuroscience

Volume number: 41

Issue number: 25

ISSN: 0270-6474

eISSN: 1529-2401

Open access status: Hybrid

DOI Link: https://doi.org/10.1523/JNEUROSCI.2415-20.2021

Publisher: Society for Neuroscience

Abstract:
The ventral visual stream of the human brain is subdivided into patches with categorical stimulus preferences, like faces or scenes. However, the functional organization within these areas is less clear. Here, we used functional magnetic resonance imaging and vertex-wise tuning models to independently probe spatial and face-part preferences in the inferior occipital gyrus (IOG) of healthy adult males and females. The majority of responses were well explained by Gaussian population tuning curves for both retinotopic location and the preferred relative position within a face. Parameter maps revealed a common gradient of spatial and face-part selectivity, with the width of tuning curves drastically increasing from posterior to anterior IOG. Tuning peaks clustered more idiosyncratically but were also correlated across maps of visual and face space. Preferences for the upper visual field went along with significantly increased coverage of the upper half of the face, matching recently discovered biases in human perception. Our findings reveal a broad range of neural face-part selectivity in IOG, ranging from narrow to "holistic" IOG is functionally organized along this gradient, which in turn is correlated with retinotopy.

Authors/Editors

- Uni.-Prof. Dr. Benjamin de Haas, Ph.D.

Citation Styles

Harvard Citation style: de Haas, B., Sereno, M. and Schwarzkopf, D. (2021) Inferior Occipital Gyrus Is Organized along Common Gradients of Spatial and Face-Part Selectivity, The Journal of Neuroscience, 41(25), pp. 5511-5521. https://doi.org/10.1523/JNEUROSCI.2415-20.2021

APA Citation style: de Haas, B., Sereno, M., & Schwarzkopf, D. (2021). Inferior Occipital Gyrus Is Organized along Common Gradients of Spatial and Face-Part Selectivity. The Journal of Neuroscience. 41(25), 5511-5521. https://doi.org/10.1523/JNEUROSCI.2415-20.2021