Alpha neurofeedback training improves visual working memory capacity measured by the Corsi-block tapping task, with an effect lasting seven days after training ends¶

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? In a randomized sham-controlled experiment, the alpha NF group showed a significant enhancement in Corsi-block tapping performance at posttest 2 (7 days after training) relative to pretest, while the sham group showed no significant change. → Zhou 2024

Evidence¶

Zhou 2024¶

Zhou, W., Nan, W., Xiong, K., & Ku, Y. (2024). Alpha neurofeedback training improves visual working memory in healthy individuals. npj Science of Learning 9, 32. https://doi.org/10.1038/s41539-024-00242-w

q3 · i? · causal · r2

Behavioral results of a randomized, single-blind, sham-controlled experiment with 40 participants equally assigned to NF and sham groups, five daily training sessions. For the sham group, "Friedman’sr a n kt e s t did not reveal significance (χ2ð2Þ¼ 2:77; p ¼ 0:25)".

"Further Wilcoxon signed rank test with Bonferroni correction revealed that the NF group had a significant enhancement in posttest 2 (M = 6.55, SE = 0.27) compared to pretest (M = 5.95, SE = 0.32; z = 2.49;p = 0.039)"

Discussion¶

Learner Variables¶

• Working Memory — outcome: instruction changes it

Related Claims¶

• Alpha neurofeedback training improves visual working memory precision in the interference condition of a color-recall task, but not in the non-interference condition — related
• Alpha neurofeedback training increases alpha amplitude within training sessions relative to sham control, but the increase does not persist across sessions — related
• Alpha neurofeedback training produces no change in alpha ERSP or pre-stimulus alpha in the encoding and maintenance phases of the modified Sternberg task — reports the opposite
• The active group improved faster during training, reaching a capacity plateau after six days, while the sham group rose more slowly — 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