Computational modeling shows a lower sensory/prior precision ratio in autistic adults in Exp. II and an opposite response bias across groups¶

Claim · All claims
Evidence · 1 study (2 entries) · causal r1–r2 · q2 · i2–i3
Currency · newest study 2023 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i2 In Exp. II's last blocks, autistic participants had a lower precision ratio than NT, especially in the first TOE block, reflecting relatively higher prior precision. → Sapey-Triomphe 2023 q2 i3 Response bias differed between groups in both experiments, with opposite answer tendencies in NT and ASD. → 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

q2 · i2 · causal · r2

Trial-to-trial modeling of Exp. II responses estimated the precision ratio per block; autistic participants "had a lower precision ratio than NT" (−0.14 vs 0.63, d = 0.42), with the largest group difference in block 4 (d = 0.86), consistent with a stronger prior of sameness.

"On average, in Exp. II, autistic participants had a lower precision ratio than NT ( −0.14 (± 1.8) in ASD vs. 0.63 (±1.8) in NT, t(97) = 2.1, p = 0.040, d = 0.42, BF = 1.42, Fig. 6f)"

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

q2 · i3 · causal · r1

Model-estimated response bias parameter b in Exp. II context-setting blocks differed between groups (NT: −0.1 ± 0.2; ASD: 0.1 ± 0.2), d = 0.96; in Exp. III the difference was again significant (d = 1.15), with opposite answer tendencies across groups.

"There was a group difference in response bias b (NT: −0.1 ± 0.2; ASD: 0.1 ± 0.2; t(31) = 2.8, p = 0.010, d = 0.96, BF = 5.27)"

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
• 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
• 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
• Sensory adaptation occurs in neurotypical but not autistic adults in tactile detection — related