Adults with dyslexia show heightened decay rates than controls in complex learning settings, indicating quicker discounting of learned associations¶

Claim · All claims
Evidence · 1 study · causal r1 · q2
Currency · newest study 2025 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? On the No-Explicit-Assist task, the dyslexia group's decay rate parameter is significantly higher than controls' (ηk 0.52 vs 0.38), indicating faster forgetting or discounting of learned feature-reward associations. → Gabay 2025

Evidence¶

Gabay 2025¶

Gabay, Y., Jacob, L., Mansour, A. & Hertz, U. (2025). Computational markers show specific deficits for dyslexia and ADHD in complex learning settings. npj Science of Learning. https://doi.org/10.1038/s41539-025-00323-4

q2 · i? · causal · r1

Computational modeling of choice sequences with the hybrid reinforcement learning/Bayes model in the dyslexia comparison. The decay rate was higher in the dyslexia group on the No-Explicit-Assist task; Table 1 prints control 0.38 (0.14) vs dyslexia 0.52 (0.19), t = −2.75, p = 0.004, significant after Bonferroni correction. No standardized effect size is printed.

"We observed a significant difference in the decay rate parameter between the two groups on the No-Explicit Assisttask, such that the parameter was higher in the dyslexia group (see Table1). This parameter reflects the rapid diminishment of the influence of past experiences or learned information over time."

Discussion¶

Learner Variables¶

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

Related Claims¶

• Adults with ADHD and adults with dyslexia show poorer reinforcement learning performance than matched controls across simple and complex multidimensional tasks — related
• Adults with ADHD show reduced reliance on Bayesian inference strategies (lower alpha) than controls in complex learning settings — related
• Adults with dyslexia use pre-cues to enhance discrimination accuracy, with pre-cued performance exceeding both post-cued and uncued conditions — related
• Performance is substantially better on the Explicit-Assist task than on the No-Explicit-Assist task in both the ADHD and dyslexia comparisons — related
• The group-by-task interaction is not significant for either ADHD or dyslexia comparisons, though simple t-tests show task-specific group differences — related