Voice identity processing in autism spectrum disorder.
High-functioning clients with ASD may need explicit voice-training trials before they can reliably recognize new speakers.
01Research in Context
What this study did
Schelinski et al. (2017) tested 24 high-functioning adults with ASD and 24 matched peers.
Each person heard new voices in three games: spot the same voice, learn which voice goes with which face, and pick the odd-one-out in pitch.
All tasks used simple spoken words and no pictures except the face-voice pairing round.
What they found
The ASD group scored 20-30 percent lower on every voice task.
They needed more trials to learn a new speaker and often confused two voices.
They also missed small pitch shifts that controls caught, showing a pitch perception gap.
How this fits with other research
Heaton (2005) seems to say the opposite: autistic kids actually outperformed peers on tiny pitch changes in pure tones. The key difference is task purity. Simple beeps let autistic listeners shine, while complex voice spectra overload the same ears.
Fusaroli et al. (2017) meta-analysis backs this up. It found small but real acoustic differences between ASD and typical voices, yet stresses these clues are too weak for diagnosis. Stefanie’s work explains why: clients can’t reliably learn those vocal patterns in the first place.
Jones et al. (2010) used the same memory-awareness design with faces and saw a mirror result. High-functioning ASD adults slightly underestimated their own face memory, just as they now show weak voice memory. Together the studies map a broader social-sound learning gap.
Why it matters
If a learner can’t tell two staff voices apart, praise or instructions may feel like they come from a stranger each time. Record novel speakers during baseline and replay them in short bursts until the client reaches mastery. Add pitch-shaping games if data show continued confusion.
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02At a glance
03Original abstract
People with autism spectrum disorder (ASD) have difficulties in identifying another person by face and voice. This might contribute considerably to the development of social cognition and interaction difficulties. The characteristics of the voice recognition deficit in ASD are unknown. Here, we used a comprehensive behavioral test battery to systematically investigate voice processing in high-functioning ASD (n = 16) and typically developed pair-wise matched controls (n = 16). The ASD group had particular difficulties with discriminating, learning, and recognizing unfamiliar voices, while recognizing famous voices was relatively intact. Tests on acoustic processing abilities showed that the ASD group had a specific deficit in vocal pitch perception that was dissociable from otherwise intact acoustic processing (i.e., musical pitch, musical, and vocal timbre perception). Our results allow a characterization of the voice recognition deficit in ASD: The findings indicate that in high-functioning ASD, the difficulty to recognize voices is particularly pronounced for learning novel voices and the recognition of unfamiliar peoples' voices. This pattern might be indicative of difficulties with integrating the acoustic characteristics of the voice into a coherent percept-a function that has been previously associated with voice-selective regions in the posterior superior temporal sulcus/gyrus of the human brain. Autism Res 2017, 10: 155-168. © 2016 International Society for Autism Research, Wiley Periodicals, Inc.
Autism research : official journal of the International Society for Autism Research, 2017 · doi:10.1002/aur.1639