tDCS over the bilateral IFG does not change overall CRA convergent-thinking performance compared across stimulation groups¶

Claim · All claims
Evidence · 1 study · causal r2 · q3
Currency · newest study 2024 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? Overall CRA accuracy and reaction time show no significant difference across L+R−, L−R+, and Sham tDCS groups. → Xie 2024

Evidence¶

Xie 2024¶

Xie, C., Zhang, S., Qiao, X., & Hao, N. (2024). Transcranial direct current stimulation targeting the bilateral IFG alters cognitive processes during creative ideation. npj Science of Learning, 9, 75. https://doi.org/10.1038/s41539-024-00285-z

q3 · i? · causal · r2

Mixed-effects analysis of CRA accuracy and reaction time in a randomized, sham-controlled tDCS experiment with 81 undergraduates; the Results report nonsignificant group main effects (F2,75 = 1.15, p = 0.33 for accuracy; F2,69.5 = 1.83, p = 0.17 for reaction time), i.e. "no significant difference in the overall performance".

"there was no significant difference in the overall performance on the CRA task following different tDCS interventions"

Discussion¶

Related Claims¶

• The relationship between RSD and CRA reaction time differs by tDCS group: U-shaped under Sham, monotonically decreasing under L−R+, and no clear relationship under L+R− — related
• tDCS over the bilateral IFG does not alter executive control as measured by the Stroop task — related
• EEG functional-connectivity classification models of CRA correctness differ by tDCS group and frequency band, with alpha-band models underperforming beta-band models specifically in the L+R− group — related
• Frontal lateralization of classification-model activity differs by tDCS group: reversed (left-dominant) alpha-band lateralization after L+R− and reduced left prefrontal beta-band engagement after L−R+ — related