Active tDCS induced lasting P300 GFP increases that emerged three weeks after training in the active group only¶

Claim · All claims
Evidence · 1 study (2 entries) · causal r2 · q3 · i2 medium
Currency · newest study 2023 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i2 In the 4-back task, the P300 GFP group effect was not significant at Post1 but was significant at Post21-test. → Yufeng Ke 2023 q3 i? P300 GFP increased significantly from Pre- to Post21 in both tasks only for the active group. → Yufeng Ke 2023 (2)

Evidence¶

Yufeng Ke 2023¶

Yufeng Ke, Shuang Liu, Long Chen, Xiashuang Wang and Dong Ming. (2023). Lasting enhancements in neural efficiency by multi-session transcranial direct current stimulation during working memory training. npj Science of Learning 8:48. https://doi.org/10.1038/s41539-023-00200-y

q3 · i2 · causal · r2

Mixed ANCOVAs on P300 GFP at Post-tests controlling for baseline showed a significant 4-back group-by-time interaction (p = 0.050, η2p = 0.126); simple main effects located the group difference at Post21-test with η2p = 0.164.

"Simple main effects analyses for P300 GFP of 4-back task showed that the group effect was not significant at Post1-test [F(1, 31) = 0.165, p = 0.687, η2 p = 0.006] but this effect was significant at Post21-test [F(1, 31) = 5.677, p = 0.024, η2 p = 0.164]"

Yufeng Ke 2023 (2)¶

Yufeng Ke, Shuang Liu, Long Chen, Xiashuang Wang and Dong Ming. (2023). Lasting enhancements in neural efficiency by multi-session transcranial direct current stimulation during working memory training. npj Science of Learning 8:48. https://doi.org/10.1038/s41539-023-00200-y

q3 · i? · causal · r2

Wilcoxon signed-rank comparisons between Pre-test and Post-tests (threshold 0.0125) showed significant P300 GFP increments only in the active group, described in the Results as supporting "lasting after-effects" of tDCS; no effect size is printed for this comparison.

"Comparisons between Pre-test and Post-tests showed significant increments from Pre- to Post1-test in the 4-back task and from Pre- to Post21-test in both tasks only for the active group ’s P300 GFP (see Table 2 and Fig. 5 panel c and f)."

Discussion¶

Related Claims¶

• HD-tDCS combined with mental rotation training shows no significant group effect or Group × Time interaction on accuracy, response time, or P300 GFP — related
• Anodal HD-tDCS over left dlPFC during multi-session working memory training yields larger d-prime improvements than sham that persist three weeks — related