Alpha neurofeedback training produces no change in alpha ERSP or pre-stimulus alpha in the encoding and maintenance phases of the modified Sternberg task¶

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? Repeated-measures ANOVA showed no significant Group × Time interaction in alpha ERSP in the encoding stage, the maintenance stage, or pre-stimulus alpha power. → 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

EEG results (64-channel recording during the modified Sternberg task) from pretest and posttest 1 in the sham-controlled experiment; Table 1 reports descriptive ERSP and pre-stimulus alpha means for both groups.

"The repeated-measures ANOVA showed no significant Group× Time interaction in the alpha ERSP in the encoding stage (F (1,38) = 0.03, p = 0.861) and in the maintenance stage (F (1,38) = 0.05, p = 0.833). Similarly, the pre-stimulus alpha activity had no significant Group × Time interaction (F (1,38) = 0.49, p = 0.486)"

Discussion¶

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 improves visual working memory capacity measured by the Corsi-block tapping task, with an effect lasting seven days after training ends — reports the opposite
• Alpha neurofeedback training increases alpha amplitude within training sessions relative to sham control, but the increase does not persist across sessions — related
• Alpha neurofeedback increases prefrontal alpha power more than sham feedback — related