Anodal tDCS at left PMd, but not right PMd, during repetitive practice produces sleep-related offline gain similar to interleaved practice¶

Claim · All claims
Evidence · 1 study · causal r1 · q3 · i2 medium
Currency · newest study 2021 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i2 L-PMd and IP-sham groups showed significantly greater sleep-related offline gain than R-PMd and RP-sham groups, with the effect emerging after the first night of sleep and persisting across subsequent nights. → Taewon Kim 2021

Evidence¶

Taewon Kim 2021¶

Taewon Kim, John J. Buchanan, Jessica A. Bernard and David L. Wright. (2021). Improving online and offline gain from repetitive practice using anodal tDCS at dorsal premotor cortex. npj Science of Learning 6:31. https://doi.org/10.1038/s41539-021-00109-4

q3 · i2 · causal · r1

A 4 (Condition) × 2 (sleep1, sleep2) mixed ANOVA on sleep-related difference scores gave a significant condition effect with printed effect size ηp² = 0.12; post hoc tests showed the L-PMd and IP-S conditions had significantly greater sleep-related offline gain than the R-PMd and RP-S conditions.

"manner similar to that observed for IP-S, F(3,60) = 2.85, p < .05, ηp 2 = 0.12 (Fig. 1F)."

Discussion¶

Related Claims¶

• Anodal tDCS at either left or right PMd during repetitive practice improves online acquisition of novel motor sequences relative to sham conditions — related
• Consolidation trajectories differ by schedule: IP-Sham is stable over 6 h then improves after sleep, while RP-Sham forgets in the first 6 h — related
• During training, real stimulation at either PMd yields superior performance on almost all blocks, and RP-sham reduces total time faster than IP-sham — related
• Stimulation at PMd during repetitive practice fails to induce the early (6-h) time-dependent consolidation typical of interleaved practice — related
• Interleaved practice produces better long-term retention than repetitive practice via offline gains at 6 h and 24 h — related
• Repetitive practice yields faster online acquisition than interleaved practice for motor sequence learning — related
• Forgetting after repetitive practice is extremely rapid, appearing within roughly 3–5 minutes after training ends — related