Autistic traits specific to communication ability are associated with performance on a Mooney face detection task

Area of Science:

• Neuroscience
• Psychology
• Autism Research

Background:

• Global face processing difficulties are linked to autism spectrum disorder (ASD).
• Autism is a heterogeneous condition, necessitating investigation into specific autistic traits affecting face processing.
• Existing research lacks clarity on which dimensions of autistic traits are most implicated in face-processing deficits.

Purpose of the Study:

• To investigate the relationship between specific autistic traits and face-processing abilities in young adults.
• To examine how different subscales of the Comprehensive Autistic Trait Inventory (CATI) correlate with performance on face identification tasks.
• To determine if communication difficulties or other autistic traits uniquely predict face-processing impairments.

Main Methods:

• Two experiments were conducted using Mooney face stimuli (abstracted face images).
• Participants completed the CATI and performed tasks assessing face identification and the face inversion effect.
• Regression analyses were used to identify unique predictors of face-processing performance.

Main Results:

• Poorer communication skills were significantly associated with lower sensitivity in discriminating faces from non-faces.
• Other autistic traits did not show unique predictive value for face identification.
• Autistic traits, particularly communication difficulties, were linked to a reduced face inversion effect, indicating altered configural processing.

Conclusions:

• Autistic traits, especially communication difficulties, are associated with reduced configural face processing.
• Impaired face identification and reduced face inversion effects in autism may stem from decreased reliance on configural face processing.
• The study underscores the importance of examining the heterogeneity of autism by considering individual facets independently.