Perceptual sensitivity and decisions rapidly update in volatile statistical contexts¶

Claim · All claims
Evidence · 1 study · causal r2 · q3
Currency · newest study 2025 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? In a volatile context where two-tone probability distributions alternate every 160 trials, detection accuracy and decision RTs show significant 'flips' following short-term probability reversals. → Luthra 2025

Evidence¶

Luthra 2025¶

Luthra, S., Luor, A., Tierney, A. T., Dick, F., & Holt, L. L. (2025). Statistical learning dynamically shapes auditory perception. npj Science of Learning. https://doi.org/10.1038/s41539-025-00328-z

q3 · i? · causal · r2

Exp 3c (detection) showed a significant Freq × Block interaction (p = 2.495e-5, η² = 0.099) with flips across the first three blocks, but no significant frequency difference in the final block. In Exp 4c (duration decisions), RTs were slowest for the less probable frequency in all blocks (Freq × Block: p = 5.253e-7, η² = 0.040).

"In the statistically volatile cont ext established in Exp 3c, there is a detection advantage for the more probable frequency, with significant 'flips' in detection accuracy due to short-term reversals in tone probability for the first three blocks of Exp 3c"

Discussion¶

Related Claims¶

• Distributional learning modulates tone detection in noise, with better detection of high-probability frequencies — related
• Distributional learning exhibits hysteresis, with prior distributions influencing judgments after distributions change — reports the opposite
• A novel frequency-duration bias: lower frequencies are perceived as longer and higher as shorter — related
• Distributional learning across a task-irrelevant dimension slows duration decisions for low-probability frequencies — related
• Graded proximity effects: equiprobable rare tones near a distribution mode are detected better than distant ones — related
• Massed exposure to a single frequency produces lasting suppression of detection at distant frequencies — related
• Detection of motion discrepancies increases with both perturbation magnitude and duration, with response times decreasing with magnitude — related