Prior influence on perception is stronger in autistic than neurotypical adults in a stable context, but not after a frequency-range change¶

Claim · All claims
Evidence · 1 study (2 entries) · causal r1–r2 · q3 · i3 large
Currency · newest study 2023 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i3 In Exp. II, the time-order effect index was significantly higher in ASD than NT, indicating stronger relative prior weight in a stable context. → Sapey-Triomphe 2023 q3 i? In Exp. III, after a change in stimulus frequency range, the time-order effect did not differ significantly between groups. → 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 · i3 · causal · r1

Exp. II TOE-block group comparison of the time-order effect index: "significantly higher in ASD than in NT" with d = 1.1 and BF = 11.3; all but two autistic participants scored above the NT median ITOE, showing high homogeneity in ASD.

"The ITOE was significantly higher in ASD than in NT ( t(31) = 3.2, p < 0.005, d = 1.1) (Fig. 4c). There was strong evidence in favor of a group difference (BF = 11.3)"

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 · r2

Exp. III TOE-block comparison after the stimulus mean changed from 30 to 26 Hz: the ITOE was "not signi ficantly different between groups" (d = 0.12), with anecdotal Bayesian evidence for no difference; equivalence was not tested.

"The ITOE was not signi ficantly different between groups (t(35) = 0.4,p = 0.71, d = 0.12; Fig. 5c). There was anecdotal evidence in favor of no group difference (BF = 0.34)"

Discussion¶

Learner Variables¶

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

Related Claims¶

• Neurotypical and autistic adults show similar average tactile detection thresholds and discrimination accuracy — related
• Both neurotypical and autistic adults implicitly learn a prior that biases tactile perception (time-order effect) — related
• Computational modeling shows a lower sensory/prior precision ratio in autistic adults in Exp. II and an opposite response bias across groups — related
• Sensory adaptation occurs in neurotypical but not autistic adults in tactile detection — related
• Autistic adults adjust their prior expectation more slowly than neurotypical adults after a change in stimulus frequency range — related
• Autistic adults show more consistent (less variable) tactile detection thresholds than neurotypical adults — related