Neural correlates of generic versus gender-specific face adaptation.

Neural correlates of generic versus gender-specific face adaptation.

MedLine Citation:	PMID: 19702459 Owner: NLM Status: MEDLINE
Abstract/OtherAbstract:	The perception of facial gender has been found to be adaptively recalibrated: adaptation to male faces causes participants to perceive subsequent faces as more feminine and vice versa [Webster, M. A., Kaping, D., Mizokami, Y., & Duhamel, P. Adaptation to natural facial categories. Nature, 428, 557-561, 2004]. In an event-related brain potential (ERP) study, Kovács et al. [Kovács, G., Zimmer, M., Banko, E., Harza, I., Antal, A., & Vidnyanszky, Z. Electrophysiological correlates of visual adaptation to faces and body parts in humans. Cerebral Cortex, 16, 742-753, 2006] reported reduced N170 amplitudes and increased latencies for test faces following female gender adaptation compared to control stimulus (a phase randomized face) adaptation. We examined whether this N170 attenuation to test faces was related to the adaptor's gender, or to adaptation to face exposure in general. We compared N170 effects after adaptation to either male or androgynous faces. Additionally, we investigated cross-modal adaptation for the same test faces following male or androgynous voice adaptors. Visual adaptation to face gender replicated previously reported aftereffects in classifying androgynous faces, and a similar trend was observed following adaptation to voice gender. Strikingly, N170 amplitudes were dramatically reduced for faces following face adaptors (relative to those following voice adaptors), whereas only minimal gender-specific adaptation effects were seen in the N170. By contrast, strong gender-specific adaptation effects appeared in a centroparietal P3-like component (approximately 400-600 msec), which in the context of adaptation may reflect a neural correlate of the detection of perceptual novelty.

Authors:	Nadine Kloth; Stefan R Schweinberger; Gyula Kovács
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Publication Detail:	Type: Journal Article; Research Support, Non-U.S. Gov't
Journal Detail:	Title: Journal of cognitive neuroscience Volume: 22 ISSN: 1530-8898 ISO Abbreviation: J Cogn Neurosci Publication Date: 2010 Oct
Date Detail:	Created Date: 2010-06-14 Completed Date: 2010-09-22 Revised Date: -
Medline Journal Info:	Nlm Unique ID: 8910747 Medline TA: J Cogn Neurosci Country: United States
Other Details:	Languages: eng Pagination: 2345-56 Citation Subset: IM
Affiliation:	Friedrich-Schiller-University, Jena, Germany. nadine.kloth@uni-jena.de
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MeSH Terms
Descriptor/Qualifier:	Acoustic Stimulation / methods Adaptation, Physiological / genetics, physiology Adult Analysis of Variance Brain Mapping* Electroencephalography / methods Evoked Potentials, Visual / physiology* Face* Female Humans Male Pattern Recognition, Visual / physiology Photic Stimulation / methods Reaction Time / physiology Sex Characteristics* Time Factors Young Adult

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