Autistic Traits Do Not Affect Emotional Face Processing in a General Population Sample.
In typical adults, higher autistic-trait scores do not change how emotional faces are scanned.
01Research in Context
What this study did
The team asked a simple question. Do adults who score high on an autism-trait checklist look at emotional faces any differently?
They tested only neurotypical adults. No one had an autism diagnosis. Eye-tracking gear recorded where each person looked while faces flashed on a screen.
What they found
Nothing moved the needle. High-trait and low-trait adults spent the same time on eyes, mouth, and whole face.
Autistic traits did not change gaze patterns or speed of first look. The result was flat zero.
How this fits with other research
Wilson et al. (2019) looked at diagnosed autistic adults and also saw no extra trouble disengaging from faces. Together the papers suggest gaze style is not a reliable marker across the spectrum.
Cage et al. (2019) seems to disagree. They found neurotypical observers give harsh first-impression ratings to autistic adults. The clash clears up when you notice Eilidh studied real diagnostic groups, while M et al. stayed in the general population. Traits alone are not autism.
Sasson et al. (2022) warn us directly: stop using trait scores from typical adults to guess how autistic people behave. The present null result supports their point.
Why it matters
If a client without diagnosis shows quirky eye contact, do not blame "subclinical autism." The data say trait scores do not predict face gaze in typical adults. Save your hypotheses for clearer markers and keep assessment focused on functional skills, not checklist numbers.
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02At a glance
03Original abstract
It has been suggested that atypical emotional face processing strategies observed in autism may extend in milder form to the general population. We investigated the relationship between autistic traits (AT) and gaze behaviour in a neurotypical adult sample. Novel naturalistic videos featuring happy, fearful and neutral faces were first validated in a sample of 22 participants. A separate sample of participants (N = 67) then viewed the three videos in counterbalanced order. Eye-tracking data showed that participants looked longer at emotional than neutral faces, and exploration of facial features varied with emotional condition. AT did not influence viewing patterns, time to first fixation or number of early fixations. We conclude that AT in the general population do not affect visual processing of emotional faces.
Journal of autism and developmental disorders, 2020 · doi:10.1007/s10803-020-04375-w