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First report of generalized face processing difficulties in möbius sequence.

Bate, S., Cook, S. J., Mole, J. and Cole, J., 2013. First report of generalized face processing difficulties in möbius sequence. PLoS One, 8 (4), e62656 .

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DOI: 10.1371/journal.pone.0062656


Reverse simulation models of facial expression recognition suggest that we recognize the emotions of others by running implicit motor programmes responsible for the production of that expression. Previous work has tested this theory by examining facial expression recognition in participants with Möbius sequence, a condition characterized by congenital bilateral facial paralysis. However, a mixed pattern of findings has emerged, and it has not yet been tested whether these individuals can imagine facial expressions, a process also hypothesized to be underpinned by proprioceptive feedback from the face. We investigated this issue by examining expression recognition and imagery in six participants with Möbius sequence, and also carried out tests assessing facial identity and object recognition, as well as basic visual processing. While five of the six participants presented with expression recognition impairments, only one was impaired at the imagery of facial expressions. Further, five participants presented with other difficulties in the recognition of facial identity or objects, or in lower-level visual processing. We discuss the implications of our findings for the reverse simulation model, and suggest that facial identity recognition impairments may be more severe in the condition than has previously been noted.

Item Type:Article
Group:Faculty of Science & Technology
ID Code:20880
Deposited By: Symplectic RT2
Deposited On:18 Jun 2013 07:59
Last Modified:14 Mar 2022 13:47


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