The hippocampus shows an own‐age bias during unfamiliar face viewing

Koen, Joshua D., Hauck, Nedra and Rugg, Michael D. (2021) The hippocampus shows an own‐age bias during unfamiliar face viewing. European Journal of Neuroscience. ISSN 0953-816X

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The present study investigated the neural correlates of the own-age bias for face recognition in a repetition suppression paradigm. Healthy young and older adults viewed upright and inverted unfamiliar faces. Some of the upright faces were repeated following one of two delays (lag 0 or lag 11). Repetition suppression effects were observed in bilateral fusiform cortex. However, there were no significant effects indicating an own-age bias in repetition suppression. The absence of these effects is arguably inconsistent with perceptual expertise accounts of own-age biases in face processing. By contrast, the right anterior hippocampus showed an own-age bias (greater activity for own- than other-age faces) when viewing an unfamiliar face for the first time. Given the importance of the hippocampus for episodic memory encoding, we conjecture that the increased hippocampal activity for own-age relative to other-age faces reflects differential engagement of neural processes supporting the episodic encoding of faces and might provide insight into the neural underpinnings of own-age biases in face recognition memory.

Item Type: Article
Faculty \ School: Faculty of Social Sciences > School of Psychology
Depositing User: LivePure Connector
Date Deposited: 12 Nov 2021 02:04
Last Modified: 19 Nov 2021 01:39
DOI: 10.1111/ejn.15523

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