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Familiarity is familiarity is familiarity: Event-related brain potentials reveal qualitatively similar representations of personally familiar and famous faces.

Wiese, Holger and Hobden, Georgina and Siilbek, Eike and Martignac, Victoire and Flack, Tessa R. and Ritchie, Kay L. and Young, Andrew W. and Burton, A. Mike (2021) 'Familiarity is familiarity is familiarity: Event-related brain potentials reveal qualitatively similar representations of personally familiar and famous faces.', Journal of Experimental Psychology: Learning, Memory, and Cognition .

Abstract

Humans excel in familiar face recognition, but often find it hard to make identity judgements of unfamiliar faces. Understanding of the factors underlying the substantial benefits of familiarity is at present limited, but the effect is sometimes qualified by the way in which a face is known – for example, personal acquaintance sometimes gives rise to stronger familiarity effects than exposure through the media. Given the different quality of personal versus media knowledge, for example in one’s emotional response or level of interaction, some have suggested qualitative differences between representations of people known personally or from media exposure. Alternatively, observed differences could reflect quantitative differences in the level of familiarity. We present four experiments investigating potential contributory influences to face familiarity effects in which observers view pictures showing their friends, favourite celebrities, celebrities they dislike, celebrities about whom they have expressed no opinion, and their own face. Using event-related potential indices with high temporal resolution and multiple highly varied everyday ambient images as a strong test of face recognition, we focus on the N250 and the later Sustained Familiarity Effect (SFE). All known faces show qualitatively similar responses relative to unfamiliar faces. Regardless of personal- or media-based familiarity, N250 reflects robust visual representations, successively refined over increasing exposure, whilst SFE appears to reflect the amount of identity-specific semantic information known about a person. These modulations of visual and semantic representations are consistent with face recognition models which emphasise the degree of familiarity but do not distinguish between different types of familiarity.

Item Type:Article
Full text:(AM) Accepted Manuscript
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Status:Peer-reviewed
Publisher Web site:https://doi.apa.org/doi/10.1037/xlm0001063
Publisher statement:© American Psychological Association, 2021. This paper is not the copy of record and may not exactly replicate the authoritative document published in the APA journal. The final article is available, upon publication, at: https://doi.apa.org/doi/10.1037/xlm0001063
Date accepted:18 May 2021
Date deposited:11 November 2021
Date of first online publication:2021
Date first made open access:11 November 2021

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