Alpha neurofeedback via a low-cost single-channel BCI improves university students' algebra performance more than sham feedback¶

Claim · All claims
Evidence · 1 study · causal r2 · q3 · i2 medium
Currency · newest study 2024 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i2 A significant Time × Group interaction on mathematical performance (η²p = 0.103) was driven by the BCI group outperforming the sham group at post-test only. → Hou 2024

Evidence¶

Hou 2024¶

Hou, Z., Li, X., Yan, J., & Xu, S. Y. (2024). Enhancing mathematical learning outcomes through a low-cost single-channel BCI system. npj Science of Learning, 9, 65. https://doi.org/10.1038/s41539-024-00277-z

q3 · i2 · causal · r2

Randomized controlled experiment with 80 university students (40 BCI, 40 sham) learning algebra on an online platform. The repeated-measures ANOVA showed "a significant interaction effect between Measure Time (Pre-test & Post-test) and Group (BCI & Sham)", with η²p = 0.103 and post-test pbonf < 0.001.

"The results showed a significant interaction effect between Measure Time (Pre-test & Post-test) and Group (BCI & Sham) on mathematical perfor- mance (F (1,78) = 8.941, p = 0.004, η²p = 0.103). The BCI group had sig- nificantly higher mathematical performance than the sham feedback group on the post-test ( pbonf < 0.001)"

Discussion¶

Learner Variables¶

• Algebraic Thinking — outcome: instruction changes it

Related Claims¶

• Alpha neurofeedback increases prefrontal alpha power more than sham feedback — related
• Alpha neurofeedback raises mathematics self-efficacy relative to sham feedback — related
• Pre-test mathematical performance and self-efficacy are the most important predictors of post-test math performance in a random forest model — related