Investigating automatic emotion processing in boys with autism via eye tracking and facial mimicry recordings.
School-age boys with autism recognize and mimic static facial emotions just like peers; smaller eye jumps are the only difference.
01Research in Context
What this study did
The team watched boys with and without autism look at faces. They used eye-tracking cameras and tiny sensors on the boys' cheeks to record eye moves and facial mimicry.
All boys saw happy, sad, angry, and scared faces. The study checked if the autism group recognized the emotions and copied the faces any differently.
What they found
Both groups named the emotions equally well. Their faces also copied the expressions the same amount.
The only difference: boys with autism made smaller eye jumps. They still looked at the right spots, just with shorter hops.
How this fits with other research
Fink et al. (2014) and Castelli (2005) saw the same thing—no emotion-naming gap once talking skill is matched. The new study adds eye and mimicry data to their story.
Two papers seem to disagree. Evers et al. (2015) found a small lag with moving videos, and Song et al. (2018) saw trouble when faces were faint. Both used harder stimuli—videos or low-intensity shots—while Stephanie et al. used clear still photos. The gap disappears when you compare like to like.
Georgopoulos et al. (2022) later showed the same null result in adults, stretching the finding across the lifespan.
Why it matters
You can drop the old idea that autistic kids automatically misread faces. When expressions are plain and the child’s language is on track, recognition is intact. Use clear photos or teach staff to speak plainly instead of hunting for hidden emotion deficits. If you need to assess, pick full-strength static faces first; save low-intensity or dynamic clips for later probes.
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02At a glance
03Original abstract
Difficulties in automatic emotion processing in individuals with autism spectrum disorder (ASD) might remain concealed in behavioral studies due to compensatory strategies. To gain more insight in the mechanisms underlying facial emotion recognition, we recorded eye tracking and facial mimicry data of 20 school-aged boys with ASD and 20 matched typically developing controls while performing an explicit emotion recognition task. Proportional looking times to specific face regions (eyes, nose, and mouth) and face exploration dynamics were analyzed. In addition, facial mimicry was assessed. Boys with ASD and controls were equally capable to recognize expressions and did not differ in proportional looking times, and number and duration of fixations. Yet, specific facial expressions elicited particular gaze patterns, especially within the control group. Both groups showed similar face scanning dynamics, although boys with ASD demonstrated smaller saccadic amplitudes. Regarding the facial mimicry, we found no emotion specific facial responses and no group differences in the responses to the displayed facial expressions. Our results indicate that boys with and without ASD employ similar eye gaze strategies to recognize facial expressions. Smaller saccadic amplitudes in boys with ASD might indicate a less exploratory face processing strategy. Yet, this slightly more persistent visual scanning behavior in boys with ASD does not imply less efficient emotion information processing, given the similar behavioral performance. Results on the facial mimicry data indicate similar facial responses to emotional faces in boys with and without ASD. LAY SUMMARY: We investigated (i) whether boys with and without autism apply different face exploration strategies when recognizing facial expressions and (ii) whether they mimic the displayed facial expression to a similar extent. We found that boys with and without ASD recognize facial expressions equally well, and that both groups show similar facial reactions to the displayed facial emotions. Yet, boys with ASD visually explored the faces slightly less than the boys without ASD.
Autism research : official journal of the International Society for Autism Research, 2021 · doi:10.1002/aur.2490