Adults show greater left inferior lateral PFC activation than adolescents during relational integration¶

Claim · All claims
Evidence · 1 study · causal r2 · q3
Currency · newest study 2016 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? A Task × Age group interaction in left inferior lateral frontal cortex: adults showed greater Relational-than-Control activation (t(13)=6.14, p<0.001) while adolescents did not (t(18)=1.66, p>0.1). → Dumontheil Iroise 2016

Evidence¶

Dumontheil Iroise 2016¶

Dumontheil Iroise, Wolf Laura K., Blakemore Sarah-Jayne. (2016). Audience effects on the neural correlates of relational reasoning in adolescence. Neuropsychologia. https://doi.org/10.1016/j.neuropsychologia.2016.05.001

q3 · i? · causal · r2

Voxel-wise analysis within the relational-integration network found only one region with an Age group × Task interaction, a left inferior lateral frontal cluster ([−54,17,16], k=43, Z=4.24, pFWE=0.032); no behavioural performance differences between age groups were found.

"in adults activation in the Relational condition was significantly greater than in the Control condition (t(13)=6.14, p<0.001, ηp2=.133), while there was no significant difference in activation in adolescents (t(18)=1.66, p>0.1, ηp2=.744)"

Discussion¶

Related Claims¶

• 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 — related
• Inferior parietal cortex (BA 39 and 40) shows greater overall activation in adults than children and a more pronounced effect of relational integration in adults — related
• Adults show sustained RLPFC activation for REL-2 problems, whereas children's early RLPFC differentiation of REL-2 from REL-1 is not sustained across the trial — related
• Children aged 8-12 are disproportionately less accurate than adults on REL-2 problems requiring integration of two relations, but not on REL-1 or REL-0 problems — related
• No behavioural Audience × Age group interaction: the accuracy decrement was comparable in adolescents and adults — related
• Generating multiple alternative uses (AU2+ > OC2+) additionally recruits left inferior frontal gyrus and middle frontal gyrus beyond the temporo-parietal network — related
• Age-related increases in dorsolateral PFC recruitment during encoding are most evident when tasks explicitly engage controlled processes — related
• Divergent thinking performance (AU-score) positively correlates with left IFG/MFG activation for AU relative to OC trials — related
• Relational integration is less accurate and slower than single-relation matching regardless of audience or age — related