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

Wilcockson, Thomas and Burns, Ed and Xia, Baiqiang and Tree, J and Crawford, Trevor (2020) Atypically heterogeneous vertical first fixations to faces in a case series of people with developmental prosopagnosia. Visual Cognition, 28 (4). pp. 311-323. ISSN 1350-6285

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Abstract

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.

Item Type:
Journal Article
Journal or Publication Title:
Visual Cognition
Additional Information:
This is an Accepted Manuscript of an article published by Taylor & Francis in Visual Cognition on 27/07/2020, available online: https://www.tandfonline.com/doi/abs/10.1080/13506285.2020.1797968
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3200/3205
Subjects:
ID Code:
145621
Deposited By:
Deposited On:
13 Jul 2020 11:20
Refereed?:
Yes
Published?:
Published
Last Modified:
27 Sep 2020 05:55