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−¶

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? RSD×group and RSD²×group interactions on CRA reaction time are significant, with the RSD–RT shape changing from U-shaped (Sham) to monotonically decreasing (L−R+) and absent (L+R−). → 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

Breakpoint mixed-effect models of CRA reaction time in the tDCS experiment; the interaction of RSD with group and the square of RSD with group were both significant (RSD×[(L+R−)—SHAM]: t = 2.508, p = 0.012; RSD²×[(L+R−)—SHAM]: t = −2.448, p = 0.015), and the quote names the U-shaped versus "monotonically decreasing" patterns.

"Breakpoint regression for the L−R+ and Sham groups revealed a U-shaped relationship between RSD and CRA reaction time in the Sham group, whereas this relationship was monotonically decreasing in the L−R+ group"

Discussion¶

Learner Variables¶

• Processing Speed — moderator: an instructional effect differs with it

Related Claims¶

• Relative semantic distance of CRA trials is positively and monotonically related to CRA accuracy — related
• tDCS over the bilateral IFG does not change overall CRA convergent-thinking performance compared across stimulation groups — 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