Evoked spindle activity showed modest negative correlations with piano task performance changes, while evoked SO strength showed no clear relationship with performance change.¶

Claim · All claims
Evidence · 1 study · causal r2 · q2 · i3 large
Currency · newest study 2026 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i3 Evoked spindle activity correlated negatively with piano pitch accuracy in the SP condition (r = -0.50, p = 0.02) and with piano rhythm accuracy in the SPd condition (r = -0.57, p = 0.02). → Jourde 2026 q2 i? No statistically significant correlations were found between evoked slow oscillation strength and change in performance on any behavioural metric. → Jourde 2026

Evidence¶

Jourde 2026¶

Jourde, H.R., Sita, K.Z., Eyqvelle, Z., Brooks, M., & Coffey, E.B.J. (2026). Modulating sleep: slow oscillation and spindle stimulation effects on physiology and memory. npj Science of Learning. https://doi.org/10.1038/s41539-025-00383-6

q2 · i3 · causal · r2

Exploratory correlational analysis in the nap study found "a significant negative correlation between evoked spindle activity and performance accuracy in the 'SP' condition (r = -0.50, p = 0.02)" and a similar negative correlation for rhythm accuracy in the SPd condition (r = -0.57, p = 0.02).

"For pitch accuracy, we identified a significant negative correlation between evoked spindle activity and performance accuracy in the 'SP' condition (r = -0.50, p = 0.02). Similarly, for rhythm accuracy, evoked spindle activity in the 'SPd' condition showed a significant negative correlation with rhythm performance (r = -0.57, p = 0.02)."

Discussion¶

Related Claims¶

• Closed-loop auditory stimulation of slow oscillations and spindles evokes significant neurophysiological responses compared to sham in healthy young adults. — related
• Piano rhythm accuracy improved across all conditions regardless of stimulation condition, while piano pitch accuracy did not change significantly. — related
• Detected slow oscillation amplitude predicts evoked SO amplitude, and detected spindle amplitude predicts evoked spindle amplitude in delayed stimulation, but not cross-band. — related
• Slow oscillation and spindle stimulation did not differentially affect motor sequence learning improvement compared to control conditions. — related