Encoding and retrieval P3 amplitudes are significantly correlated only in non-ADHD adolescents, though the between-group difference in correlations was not statistically discriminative¶

Claim · All claims
Evidence · 1 study · associational r1 · q3 · i3 large
Currency · newest study 2020 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i3 Encoding early-P3 amplitude correlated with retrieval P3 amplitude across trial types, with the significant correlations driven by the non-ADHD group (r = 0.51 Same; r = 0.50 Different); ADHD correlations were not significant. → Ortega 2020

Evidence¶

Ortega 2020¶

Ortega, R., López, V., Carrasco, X., Escobar, M. J., García, A. M., Parra, M. A. & Aboitiz, F. (2020). Neurocognitive mechanisms underlying working memory encoding and retrieval in Attention-Deficit/Hyperactivity Disorder. Scientific Reports 10:7771. https://doi.org/10.1038/s41598-020-64678-x

q3 · i3 · associational · r1

Pearson correlations between encoding early-P3 and retrieval P3 amplitudes in the same sample: significant in the non-ADHD group (Same r = 0.50955, p = 0.03077; Different r = 0.49540, p = 0.03656) but "no significant correlation" in the ADHD group (r = 0.35457 and r = 0.25418, both ns).

"Follow up analysis showed that these significant correlations were driven by the results from the non-ADHD group: Same (r = 0.50955, p = 0.03077) and Different (r = 0.49540, p = 0.03656). The equivalent analysis in the ADHD group showed no significant correlation: Same (r = 0.35457, p = 0.14881) and Different (r = 0.25418, p = 0.30877)"

Discussion¶

Related Claims¶

• Retrieval P3 discriminates Same from Different trials only in non-ADHD adolescents, indicating a failure of post-selection prioritization in ADHD — related
• Encoding P3 amplitude is reduced in ADHD adolescents during visual WM encoding, in both early and late time windows — related