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Brain Sciences Jan 2024Existing evidence suggests that developmental prosopagnosia (DP) is a surprisingly prevalent condition, with some individuals describing lifelong difficulties with...
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.
PubMed: 38248264
DOI: 10.3390/brainsci14010049 -
Acta Neurologica Belgica Dec 2023
Topics: Humans; Prosopagnosia; Temporal Lobe; Epilepsy, Temporal Lobe; Hemangioma, Cavernous, Central Nervous System
PubMed: 36622525
DOI: 10.1007/s13760-023-02185-2 -
Cortex; a Journal Devoted To the Study... Mar 2024
Class A, Class B. Is that the only chemistry?: A commentary on DeGutis et al. (2023): What is the prevalence of developmental prosopagnosia? An empirical assessment of different diagnostic cutoffs.
PubMed: 38555272
DOI: 10.1016/j.cortex.2024.03.001