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Neural processing of the same, behaviourally relevant face features is delayed by 40 ms in healthy ageing

Katarzyna Jaworska, Fei Yi, Robin A.A. Ince, Nicola J. van Rijsbergen, Philippe G. Schyns, Guillaume A. Roussele
doi: https://doi.org/10.1101/326009
Katarzyna Jaworska
1Institute of Neuroscience and Psychology, University of Glasgow, Glasgow G12 8QB, United Kingdom
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  • For correspondence: katarzyna.jaworska@glasgow.ac.uk
Fei Yi
1Institute of Neuroscience and Psychology, University of Glasgow, Glasgow G12 8QB, United Kingdom
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Robin A.A. Ince
1Institute of Neuroscience and Psychology, University of Glasgow, Glasgow G12 8QB, United Kingdom
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Nicola J. van Rijsbergen
1Institute of Neuroscience and Psychology, University of Glasgow, Glasgow G12 8QB, United Kingdom
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Philippe G. Schyns
1Institute of Neuroscience and Psychology, University of Glasgow, Glasgow G12 8QB, United Kingdom
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Guillaume A. Roussele
1Institute of Neuroscience and Psychology, University of Glasgow, Glasgow G12 8QB, United Kingdom
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Abstract

Fast and accurate face perception is critical for successful human social interactions. Face perception declines with age both in behavioural and neural responses, although we do not yet understand why. Here, we tested the hypothesis that early brain mechanisms involved with face information processing are delayed in older participants. Using face detection - the most basic task for social interaction – we sampled visual information from faces (vs. noise) and reconstructed the features (mainly, the left eye) associated with detection behaviour in young (20-36 years) and older (60-86 years) adults. We then compared behavioural results to neural representations of face features revealed with simultaneously recorded EEG on the N170, an event-related potential associated with visual categorization. Whereas the right hemisphere N170 latency and amplitude represented the left eye in young participants, it was mostly amplitude that represented the eye with a 40 ms delay in older adults. Our results demonstrate that face processing speed declines in ageing with a delay in the early stages that process the visual information important for behaviour.

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The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY 4.0 International license.
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Posted May 18, 2018.
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Neural processing of the same, behaviourally relevant face features is delayed by 40 ms in healthy ageing
Katarzyna Jaworska, Fei Yi, Robin A.A. Ince, Nicola J. van Rijsbergen, Philippe G. Schyns, Guillaume A. Roussele
bioRxiv 326009; doi: https://doi.org/10.1101/326009
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Neural processing of the same, behaviourally relevant face features is delayed by 40 ms in healthy ageing
Katarzyna Jaworska, Fei Yi, Robin A.A. Ince, Nicola J. van Rijsbergen, Philippe G. Schyns, Guillaume A. Roussele
bioRxiv 326009; doi: https://doi.org/10.1101/326009

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