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No semantic information is necessary to evoke general neural signatures of face familiarity: evidence from cross-experiment classification.

Dalski, A., Kovács, G. and Ambrus, G. G., 2022. No semantic information is necessary to evoke general neural signatures of face familiarity: evidence from cross-experiment classification. Brain Structure and Function. (In Press)

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DOI: 10.1007/s00429-022-02583-x

Abstract

Recent theories on the neural correlates of face identification stressed the importance of the available identity-specific semantic and affective information. However, whether such information is essential for the emergence of neural signal of familiarity has not yet been studied in detail. Here, we explored the shared representation of face familiarity between perceptually and personally familiarized identities. We applied a cross-experiment multivariate pattern classification analysis (MVPA), to test if EEG patterns for passive viewing of personally familiar and unfamiliar faces are useful in decoding familiarity in a matching task where familiarity was attained thorough a short perceptual task. Importantly, no additional semantic, contextual, or affective information was provided for the familiarized identities during perceptual familiarization. Although the two datasets originate from different sets of participants who were engaged in two different tasks, familiarity was still decodable in the sorted, same identity matching trials. This finding indicates that the visual processing of the faces of personally familiar and purely perceptually familiarized identities involve similar mechanisms, leading to cross-classifiable neural patterns.

Item Type:Article
ISSN:0044-2232
Uncontrolled Keywords:Cross-experiment; Multivariate pattern analysis; EEG; Face processing; Familiarity; MVPA; Person recognition
Group:Faculty of Science & Technology
ID Code:37669
Deposited By: Symplectic RT2
Deposited On:20 Oct 2022 10:03
Last Modified:20 Oct 2022 10:03

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