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The time it takes to truly know someone: Neurophysiological correlates of face and identity learning during the first two years.

Popova, Tsvetomila and Wiese, Holger (2022) 'The time it takes to truly know someone: Neurophysiological correlates of face and identity learning during the first two years.', Biological psychology., 170 . p. 108312.

Abstract

How long does it take to truly know a person? To answer this question, we investigated how event-related brain potential (ERP) correlates of facial familiarity (N250) and the integration of identity-specific knowledge (Sustained Familiarity Effect, SFE) develop over time. Sixty undergraduate students from three year groups were tested with images of a university friend (with two, 14, and 26 months of familiarity for Year 1, Year 2, and Year 3 students), a highly familiar friend from home, and an unfamiliar identity. While clear ERP familiarity effects for home friends were observed in all groups, university friends yielded a clear N250 effect but only a small SFE in Year 1. Importantly, both effects significantly increased for university friends from Year 1 to Year 2, but not afterwards. Our results demonstrate that neural representations of visual familiarity and identity-specific knowledge build up over time and are fully developed by 14 months of familiarity.

Item Type:Article
Full text:Publisher-imposed embargo until 12 March 2023.
(AM) Accepted Manuscript
Available under License - Creative Commons Attribution Non-commercial No Derivatives 4.0.
File format - PDF
(2882Kb)
Status:Peer-reviewed
Publisher Web site:https://doi.org/10.1016/j.biopsycho.2022.108312
Publisher statement:© 2022. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
Date accepted:09 March 2022
Date deposited:14 March 2022
Date of first online publication:12 March 2022
Date first made open access:12 March 2023

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