Weaker face recognition in adults with autism arises from perceptually based alterations.

Adults with autism showed difficulty recognizing faces compared to people without autism. The study found these difficulties occurred even when faces were shown immediately (not just after a delay), suggesting the problem is with how people with autism see and process faces, not just remembering them. This challenges the idea that face recognition problems in autism are mainly about memory.

This study examined face recognition abilities in adults with autism spectrum disorders (ASD) compared to typically developing individuals. Using a delayed estimation task with upright and inverted faces at different retention intervals, researchers found that individuals with ASD made significantly more errors than controls in both simultaneous and delayed conditions. The ASD group also showed weaker face inversion effects, suggesting similar processing precision for upright and inverted faces unlike typical development. These findings indicate that face recognition difficulties in autism stem from underlying perceptual deficits rather than memory problems alone, challenging previous assumptions about the nature of face processing differences in autism.

These findings suggest that interventions targeting face recognition in autism should focus on perceptual processing skills rather than memory strategies alone. Understanding that face processing differences are perceptual may help explain social communication challenges and inform therapeutic approaches.

Sample size not reported in abstract. Study limited to adults with ASD. Methodology details unclear from abstract. Single study design without replication. Unclear if participants had intellectual disabilities or other comorbidities.

Face recognition has been shown to be impaired in autism spectrum disorders (ASD). However, it is still debated whether these face processing deficits arise from perceptually based alterations. We tested individuals with ASD and matched typically developing (TD) individuals using a delayed estimation task in which a single target face was shown either upright or inverted. Participants selected a face that best resembled the target face out of a cyclic space of morphed faces.

To enable the disentanglement of visual from mnemonic processing, reports were required either following a 1 and 6 second retention interval, or simultaneously while the target face was still visible. Individuals with ASD made significantly more errors than TD individuals in both the simultaneous and delayed intervals, indicating that face recognition deficits in autism are also perceptual rather than strictly memory based. Moreover, individuals with ASD exhibited weaker inversion effects than the TD individuals, on all retention intervals. This finding, that was mostly evident in precision errors, suggests that contrary to the more precise representations of upright faces in TD individuals, individuals with ASD exhibit similar levels of precision for inverted and upright faces, for both simultaneous and delayed conditions.

These results suggest that weakened memory for faces reported in ASD may be secondary to an underlying perceptual deficit in face processing.