Neurotypical and autistic adults show similar average tactile detection thresholds and discrimination accuracy¶

Claim · All claims
Evidence · 1 study (2 entries) · causal r1–r2 · q3
Currency · newest study 2023 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? Absolute tactile detection thresholds did not differ between NT and ASD adults in Experiment I, nor in the discrimination experiments. → Sapey-Triomphe 2023 q3 i? Percentages of correct answers in the context-setting blocks did not differ between groups in Experiments II and III. → Sapey-Triomphe 2023 (2)

Evidence¶

Sapey-Triomphe 2023¶

Sapey-Triomphe, L.-A., Sanchez, G., Hénaff, M.-A., Sonié, S., Schmitz, C., & Mattout, J. (2023). Disentangling sensory precision and prior expectation of change in autism during tactile discrimination. npj Science of Learning, 8:54. https://doi.org/10.1038/s41539-023-00207-5

q3 · i? · causal · r2

Experiment I measured 30 Hz tactile detection thresholds with a method of limits in NT and autistic adults without intellectual disability. The article reports "did not differ between the neurotypical (NT) group" and the ASD group, with t(61) = 0.3, p = 0.79 and Bayesian evidence favoring no difference.

"the average intensity detection threshold of 30 Hz stimulations did not differ between the neurotypical (NT) group (0.6 mA ± 0.2) and the ASD group (0.6 mA ± 0.4) ( t(61) = 0.3, p = 0.79, d = 0.68)"

Sapey-Triomphe 2023 (2)¶

Sapey-Triomphe, L.-A., Sanchez, G., Hénaff, M.-A., Sonié, S., Schmitz, C., & Mattout, J. (2023). Disentangling sensory precision and prior expectation of change in autism during tactile discrimination. npj Science of Learning, 8:54. https://doi.org/10.1038/s41539-023-00207-5

q3 · i? · causal · r1

Two-alternative forced-choice context-setting blocks of Exp. II showed comparable accuracy across groups (81% vs 79%); "did not differ between groups" with only anecdotal Bayesian evidence (BF = 0.43). Exp. III similarly found no group difference.

"In Exp. II, the percentages of correct answers were 81% (± 8) in NT and 79% (± 7) in ASD and did not differ between groups (t(31) = 0.8, p = 0.40, d = 0.29, BF = 0.43)"

Discussion¶

Learner Variables¶

• Learning Disabilities and Developmental Differences — predictor: learners who differ on it differ in outcomes

Related Claims¶

• Autistic adults show more consistent (less variable) tactile detection thresholds than neurotypical adults — related
• Sensory adaptation occurs in neurotypical but not autistic adults in tactile detection — related
• Both neurotypical and autistic adults implicitly learn a prior that biases tactile perception (time-order effect) — related
• Prior influence on perception is stronger in autistic than neurotypical adults in a stable context, but not after a frequency-range change — related
• Autistic adults adjust their prior expectation more slowly than neurotypical adults after a change in stimulus frequency range — related
• Computational modeling shows a lower sensory/prior precision ratio in autistic adults in Exp. II and an opposite response bias across groups — related
• Massed exposure to a single frequency produces lasting suppression of detection at distant frequencies — related