Familial Transmission of Developmental Prosopagnosia: New Case Reports from an Extended Family and Identical Twins

Bate, Sarah ORCID: 0000-0001-5484-8195, Murray, Ebony ORCID: 0000-0003-4928-5871 and Bennetts, Rachel J (2024) Familial Transmission of Developmental Prosopagnosia: New Case Reports from an Extended Family and Identical Twins. Brain Sciences, 14 (1). Art 49. doi:10.3390/brainsci14010049

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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.

Item Type:	Article
Article Type:	Article
Uncontrolled Keywords:	Prosopagnosia; Face recognition; Face perception; Genetics; Heritability
Subjects:	B Philosophy. Psychology. Religion > BF Psychology Q Science > QH Natural history > QH426 Genetics
Divisions:	Schools and Research Institutes > School of Education and Science
Research Priority Areas:	Health, Life Sciences, Sport and Wellbeing
SWORD Depositor:	Pubrouter
Depositing User:	Anna Kerr
Date Deposited:	19 Jan 2024 12:32
Last Modified:	23 Jan 2024 17:15
URI:	https://eprints.glos.ac.uk/id/eprint/13642

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