In the personalized TMR group, memory improvement for challenging items correlates positively with SW-spindle coupling (r = 0.70), but no such correlation appears in the All condition or other groups¶

Claim · All claims
Evidence · 1 study · causal r2 · q3 · i3 large
Currency · newest study 2025 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i3 Differences in accuracy showed a strong positive association with SW-spindle coupling (r = 0.70) exclusively in the L3 condition of the personalized TMR group. → Shin 2025

Evidence¶

Shin 2025¶

Shin, G.-H., Kweon, Y.-S., Oh, S., & Lee, S.-W. (2025). Personalized targeted memory reactivation enhances consolidation of challenging memories via slow wave and spindle dynamics. npj Science of Learning 10:47. https://doi.org/10.1038/s41539-025-00340-3

q3 · i3 · causal · r2

Pearson correlation (FDR-corrected) between behavioral improvement and EEG features in the L3 condition: r = 0.70, p = 0.011 for accuracy difference and SW-spindle coupling in the personalized TMR group only.

"In the L3 condition, a significant correlation was observed exclusively in the personalized TMR group: differences inaccuracy showed a strong positive association with SW-spindle coupling (r =0 . 7 0 ,p =0 . 0 1 1 ) ."

Discussion¶

Related Claims¶

• Personalized TMR improves error correction (higher incorrect-to-correct transitions) and reduces persistence of incorrect responses, mainly for challenging items — related
• Personalized TMR improves recall accuracy for the most challenging (L3) word pairs, outperforming both uniform TMR and no-stimulation control in the post-sleep session — related
• Multivariate classification of SW power, spindle power, and SW-spindle coupling distinguishes the personalized TMR, TMR, and control groups above chance, peaking around 3 s after cue onset — related
• TMR efficacy depends on memory strength and task difficulty: benefits concentrate on moderately strong and challenging items, with limited advantage for easy (L1) items — related
• Exploratory analysis finds moderate-magnitude correlation between fast spindle-slow oscillation coupling strength and retention of no-feedback retrieval-practice items — related
• Cortical delta oscillations during slow-wave sleep support declarative memory consolidation — related
• Hippocampal sharp-wave ripples during SWS and waking support memory consolidation and spatial task performance — related