4.5 Article

Investigating the Influence of Autism Spectrum Traits on Face Processing Mechanisms in Developmental Prosopagnosia

Journal

JOURNAL OF AUTISM AND DEVELOPMENTAL DISORDERS
Volume 53, Issue 12, Pages 4787-4808

Publisher

SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10803-022-05705-w

Keywords

Developmental prosopagnosia; Autism quotient; Face memory; Holistic processing; Emotion recognition

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This study investigated whether there are qualitative differences in face processing between DP patients with high and low AQ scores. The results showed that both groups had deficits in face memory and perception, while the high AQ group also demonstrated deficient face emotion recognition.
Autism traits are common exclusionary criteria in developmental prosopagnosia (DP) studies. We investigated whether autism traits produce qualitatively different face processing in 43 DPs with high vs. low autism quotient (AQ) scores. Compared to controls (n = 27), face memory and perception were similarly deficient in the high- and low-AQ DPs, with the high-AQ DP group additionally showing deficient face emotion recognition. Task-based fMRI revealed reduced occipito-temporal face selectivity in both groups, with high-AQ DPs additionally demonstrating decreased posterior superior temporal sulcus selectivity. Resting-state fMRI showed similar reduced face-selective network connectivity in both DP groups compared with controls. Together, this demonstrates that high- and low-AQ DP groups have very similar face processing deficits, with additional facial emotion deficits in high-AQ DPs.

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