Exploratory ROI volume–behavior correlations within SES groups did not survive FDR correction¶

Claim · All claims
Evidence · 1 study · associational r2 · q2
Currency · newest study 2015 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? Exploratory within-group analyses found associations such as greater right hippocampal volume predicting greater working memory in the higher-SES group, but no models reached significance after FDR correction for 12 comparisons. → Leonard JA 2015

Evidence¶

Leonard JA 2015¶

Leonard JA, Mackey AP, Finn AS and Gabrieli JDE (2015) Differential effects of socioeconomic status on working and procedural memory systems. Front. Hum. Neurosci. 9:554. https://doi.org/10.3389/fnhum.2015.00554

q2 · i? · associational · r2

Exploratory analyses related each ROI volume to procedural and working memory performance within each SES group. Several uncorrected associations appeared (e.g., right hippocampus with working memory, p = 0.04), but "No models reached significance after FDR correction for the 12 comparisons made within each SES group."

"Within the higher-SES group, greater right hippocampal volume predicted greater working memory [ b = 0.001, t(31) = 2.10, p = 0.04, r2 = 0.08, 95% CI [0.00004, 0.003]], and smaller left caudate volume predicted greater procedural memory learning"

Discussion¶

Related Claims¶

• Hippocampal volume relates to episodic memory differently across development: adults show head/body associations, children show tail associations — related
• Lower-SES adolescents have smaller hippocampal and DLPFC volumes but do not differ in caudate volumes — related
• Bullied preadolescents have larger right hippocampal volumes than matched non-bullied peers, but this does not mediate cognition — related
• Lower-SES and higher-SES adolescents did not significantly differ on probabilistic classification learning — related
• Working memory capacity is significantly smaller in lower-SES than higher-SES adolescents — related