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Published in: Brain Structure and Function 1/2019

01-01-2019 | Original Article

TMS of the occipital face area modulates cross-domain identity priming

Authors: Géza Gergely Ambrus, Catarina Amado, Laura Krohn, Gyula Kovács

Published in: Brain Structure and Function | Issue 1/2019

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Abstract

Accumulating evidence suggests that besides its function in early facial feature processing, the role of the right occipital face area (rOFA) extends to higher level, image-independent processing. Recent studies hint at the possibility that the activity of this region can be modulated by semantic information as well. To test whether the OFA is sensitive to semantic information in a functionally relevant way, we implemented a cross-domain, name-face priming paradigm combined with state-dependent transcranial magnetic stimulation, whereby stimulation preferentially facilitates the processing of attributes encoded by less active neural populations. Our volunteers performed a familiarity decision task for target face images preceded by primes that were either the name of the same identity (congruent), a name of a different person (incongruent), or the character string ‘XXXXX’ (no prime). Stimulating the rOFA at target stimulus onset, we observed the disappearance of the behavioral disadvantage of incongruent primes, compared to the vertex control condition. Performance in the congruent and no prime conditions remained intact. This result suggests the existence of neural populations in the rOFA that take part in the semantic processing of identity, probably in interplay with other nodes in the extended face network.
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Metadata
Title
TMS of the occipital face area modulates cross-domain identity priming
Authors
Géza Gergely Ambrus
Catarina Amado
Laura Krohn
Gyula Kovács
Publication date
01-01-2019
Publisher
Springer Berlin Heidelberg
Published in
Brain Structure and Function / Issue 1/2019
Print ISSN: 1863-2653
Electronic ISSN: 1863-2661
DOI
https://doi.org/10.1007/s00429-018-1768-0

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