Adults show larger left IFG/MFG condition effects (AU relative to baseline) than adolescents, indicating adolescents do not yet recruit left lateral PFC at an adult level for creative thinking¶

Claim · All claims
Evidence · 1 study · causal r2 · q3 · i3 large
Currency · newest study 2013 · not yet checked against its sources · not reviewed by a person · overdue for a recheck since 2018: baselines and conditions change

Subclaims¶

q3 i3 ROI analysis revealed a significant age group × condition interaction on left IFG/MFG contrast estimates, with adults showing larger condition effects than adolescents (η2 = 0.15). → Kleibeuker 2013

Evidence¶

Kleibeuker 2013¶

Kleibeuker, S. W., Koolschijn, P. C. M. P., Jolles, D. D., De Dreu, C. K. W., and Crone, E. A. (2013). The neural coding of creative idea generation across adolescence and early adulthood. Frontiers in Human Neuroscience 7:905. https://doi.org/10.3389/fnhum.2013.00905

q3 · i3 · causal · r2

ROI mixed ANOVA on contrast estimates for AU and OC conditions relative to baseline in the left IFG/MFG cluster. The study reports a "significant age group× condition interaction effect" with η2 = 0.15, adults showing larger effects, consistent with the hypothesis that adolescents do not yet recruit left lateral PFC at a mature level.

"Results revealed a significant age group× condition interaction effect [F(1, 41) = 7.21, p = 0.01, η2 = 0.15; see Figure 4C). Adults showed larger condition effects than adolescents"

Discussion¶

Related Claims¶

• Divergent thinking performance (AU-score) positively correlates with left IFG/MFG activation for AU relative to OC trials — related
• Generating multiple alternative uses (AU2+ > OC2+) additionally recruits left inferior frontal gyrus and middle frontal gyrus beyond the temporo-parietal network — related
• Generating alternative uses relative to ordinary characteristics recruits mainly left temporo-parietal regions (left SMG, left AG, bilateral MTG) in both adolescents and adults — related
• Adults show greater left inferior lateral PFC activation than adolescents during relational integration — related
• More solutions are generated in the OC condition than the AU condition, and adults generate more answers than adolescents in general, with no condition-specific age difference — related
• Adults outperform adolescents on fluency measures of divergent thinking (scanner AU-score, verbal fluency, and AUT-brick fluency), but not on originality or flexibility — related