ctDCS to M1 during interleaved practice does not disrupt subsequent offline consolidation, which proceeds similarly with and without stimulation¶

Claim · All claims
Evidence · 1 study (2 entries) · causal r2 · q3
Currency · newest study 2024 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? The absence of a Group × Test Block interaction verified that consolidation following IP occurred irrespective of the presence or absence of ctDCS during training. → Taewon Kim 2024 q3 i? A significant main effect of Test Block indicated that ctDCS had no impact on subsequent consolidation. → Taewon Kim 2024 (2)

Evidence¶

Taewon Kim 2024¶

Taewon Kim, Hakjoo Kim, Benjamin A. Philip & David L. Wright. (2024). M1 recruitment during interleaved practice is important for encoding, not just consolidation, of skill memory. npj Science of Learning 9, 77. https://doi.org/10.1038/s41539-024-00290-2

q3 · i? · causal · r2

In the 2 (Group: IP-Sham, IP-ctDCS) × 3 (Time Point) ANOVA on retention tests, the non-significant Group × Test Block interaction "verified that the nature of consolidation common ly observed following IP occurred irrespective of the presence or absence of ctDCS".

"The absence of a Group × Test Block interaction,F (2, 68) = 0.44,p = 0.65, ηp 2 = 0.01) verified that the nature of consolidation common ly observed following IP occurred irrespective of the presence or absence of ctDCS during training."

Taewon Kim 2024 (2)¶

Taewon Kim, Hakjoo Kim, Benjamin A. Philip & David L. Wright. (2024). M1 recruitment during interleaved practice is important for encoding, not just consolidation, of skill memory. npj Science of Learning 9, 77. https://doi.org/10.1038/s41539-024-00290-2

q3 · i? · causal · r2

The same ANOVA showed a significant main effect of Test Block, which the article reads as showing that "ctDCS had no impact on subsequent consolidation": both IP groups improved offline across test sessions.

"ctDCS had no impact on subsequent consolidation, as indicated by the significant main effect of Test Block,F(2, 68) = 35.51,p <0 . 0 0 1 ,ηp 2 = 0.51."

Discussion¶

Learner Variables¶

• Long-Term Memory — outcome: instruction changes it

Related Claims¶

• Early offline gain after interleaved practice is reduced by ctDCS: IP-Sham improves from final training block to the 5-min test while IP-ctDCS remains stable — reports the opposite
• Cathodal tDCS to M1 during interleaved practice weakens encoding, producing poorer performance across training and at all retention tests — 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
• Stimulation at PMd during repetitive practice fails to induce the early (6-h) time-dependent consolidation typical of interleaved practice — related