Rights statement: 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
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Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Atypically heterogeneous vertical first fixations to faces in a case series of people with developmental prosopagnosia
AU - Wilcockson, Thomas
AU - Burns, Ed
AU - Xia, Baiqiang
AU - Tree, J
AU - Crawford, Trevor
N1 - 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
PY - 2020/8/1
Y1 - 2020/8/1
N2 - 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.
AB - 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.
KW - Prosopagnosia
KW - EYE GAZE
KW - saccade
KW - face perception
U2 - 10.1080/13506285.2020.1797968
DO - 10.1080/13506285.2020.1797968
M3 - Journal article
VL - 28
SP - 311
EP - 323
JO - Visual Cognition
JF - Visual Cognition
SN - 1350-6285
IS - 4
ER -