Selectivity for mid‐level properties of faces and places in the fusiform face area and parahippocampal place area

TY - JOUR

T1 - Selectivity for mid‐level properties of faces and places in the fusiform face area and parahippocampal place area

AU - Coggan, David Douglas

AU - Baker, Daniel Hart

AU - Andrews, Timothy John

N1 - © 2018 Federation of European Neuroscience Societies and John Wiley & Sons Ltd. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details.

PY - 2019/6/20

Y1 - 2019/6/20

N2 - Regions in the ventral visual pathway, such as the fusiform face area (FFA) and parahippocampal place area (PPA), are selective for images from specific object categories. Yet images from different object categories differ in their image properties. To investigate how these image properties are represented in the FFA and PPA, we compared neural responses to locally-scrambled images (in which mid-level, spatial properties are preserved) and globally-scrambled images (in which mid-level, spatial properties are not preserved). There was a greater response in the FFA and PPA to images from the preferred category relative to their non-preferred category for the scrambled conditions. However, there was a greater selectivity for locally-scrambled compared to globally-scrambled images. Next, we compared the magnitude of fMR adaptation to intact and scrambled images. fMR-adaptation was evident to locally-scrambled images from the preferred category. However, there was no adaptation to globally-scrambled images from the preferred category. These results show that the selectivity to faces and places in the FFA and PPA is dependent on mid-level properties of the image that are preserved by local scrambling.

AB - Regions in the ventral visual pathway, such as the fusiform face area (FFA) and parahippocampal place area (PPA), are selective for images from specific object categories. Yet images from different object categories differ in their image properties. To investigate how these image properties are represented in the FFA and PPA, we compared neural responses to locally-scrambled images (in which mid-level, spatial properties are preserved) and globally-scrambled images (in which mid-level, spatial properties are not preserved). There was a greater response in the FFA and PPA to images from the preferred category relative to their non-preferred category for the scrambled conditions. However, there was a greater selectivity for locally-scrambled compared to globally-scrambled images. Next, we compared the magnitude of fMR adaptation to intact and scrambled images. fMR-adaptation was evident to locally-scrambled images from the preferred category. However, there was no adaptation to globally-scrambled images from the preferred category. These results show that the selectivity to faces and places in the FFA and PPA is dependent on mid-level properties of the image that are preserved by local scrambling.

KW - face processing

KW - fMRI

KW - object vision

KW - visual cortex

UR - http://www.scopus.com/inward/record.url?scp=85060331363&partnerID=8YFLogxK

U2 - 10.1111/ejn.14327

DO - 10.1111/ejn.14327

M3 - Article

SN - 0953-816X

VL - 49

SP - 1587

EP - 1596

JO - The European Journal of Neuroscience

JF - The European Journal of Neuroscience

IS - 12

ER -