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Title: Familial Transmission of Developmental Prosopagnosia: New Case Reports from an Extended Family and Identical Twins
Authors: Bate, S
Murray, E
Bennetts, RJ
Keywords: prosopagnosia;face recognition;face perception;genetics;heritability
Issue Date: 4-Jan-2024
Publisher: MDPI
Citation: Bate, S., Murray, E. and Bennetts, R.J. (2024) 'Familial Transmission of Developmental Prosopagnosia: New Case Reports from an Extended Family and Identical Twins', Brain Sciences, 14 (1), 49, pp. 1 - 15. doi: 10.3390/brainsci14010049.
Abstract: Existing evidence suggests that developmental prosopagnosia (DP) is a surprisingly prevalent condition, with some individuals describing lifelong difficulties with facial identity recognition. Together with case reports of multiple family members with the condition, this evidence suggests that DP is inherited in at least some instances. Here, we offer some novel case series that further support the heritability of the condition. First, we describe five adult siblings who presented to our lab with symptoms of DP. Second, for the first known time in the literature, we describe a pair of adult identical twins who contacted us in the belief that they both experience DP. The condition was confirmed in three of the five siblings (with minor symptoms observed in the remaining two) and in both twins. Supplementary assessments suggested that all individuals also experienced some degree of difficulty with facial identity perception, but that object recognition was preserved. These findings bolster the evidence supporting the heritability of DP and suggest that it can be a specific impairment in some cases.
Description: Data Availability Statement: The data presented in this study are available in the article and in supplementary material (
Other Identifiers: ORCID iD: Sarah Bate
ORCID iD: Rachel J. Bennetts
Appears in Collections:Dept of Life Sciences Research Papers

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