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Wilcockson_ProsoFirstFixation2018_vAccepted.pdf (390.55 kB)

Atypically heterogeneous vertical first fixations to faces in a case series of people with developmental prosopagnosia

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posted on 2020-07-14, 09:41 authored by Thom WilcocksonThom Wilcockson, Edwin Burns, Baiqiang Xia, Jeremy Tree, Trevor Crawford
When people recognise faces, they normally move their eyes so that their first fixation is in the optimal location for efficient perceptual processing. This location is found just below the centre point between the eyes. This type of attentional bias could be partly innate, but also an inevitable developmental process that aids our ability to recognise faces. We investigated whether a group of people with developmental prosopagnosia would also demonstrate neurotypical first fixation locations when recognising faces during an eye tracking task. We found evidence that adults with prosopagnosia had atypically heterogeneous first fixations in comparison to controls. However, differences were limited to the vertical, but not horizontal, plane of the face. We interpret these findings by suggesting that subtle changes to face-based eye movement patterns in developmental prosopagnosia may underpin their face recognition impairments, and suggest future work is still needed to address this possibility.

History

School

  • Sport, Exercise and Health Sciences

Published in

Visual Cognition

Volume

28

Issue

4

Pages

311 - 323

Publisher

Taylor & Francis

Version

  • AM (Accepted Manuscript)

Rights holder

© Informa UK Limited, trading as Taylor & Francis Group

Publisher statement

This is an Accepted Manuscript of an article published by Taylor & Francis in Visual Cognition on 27 July 2020, available online: http://www.tandfonline.com/10.1080/13506285.2020.1797968.

Acceptance date

2020-07-10

Publication date

2020-07-27

Copyright date

2020

ISSN

1350-6285

eISSN

1464-0716

Language

  • en

Depositor

Dr Thom Wilcockson. Deposit date: 13 July 2020

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