The number of slow oscillations during sleep is positively correlated with attractiveness ratings of faces associated with cued names but not uncued names¶

Claim · All claims
Evidence · 1 study (2 entries) · causal r2 · q3 · i2 medium
Currency · newest study 2025 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i2 Slow oscillation count correlated positively with cued-name facial attractiveness ratings (r(74) = 0.40, a printed correlation effect size) but not with uncued-name ratings (r(74) = −0.04). → Zhao 2025

Evidence¶

Zhao 2025¶

Zhao, H., Lin, X., Yuan, K., Hu, X., Wang, X., Su, W., Wang, Q., & Lu, L. (2025). Updating social evaluation during sleep. npj Science of Learning. https://doi.org/10.1038/s41539-025-00356-9

q3 · i2 · causal · r2

Pearson correlational analysis of slow oscillation counts against attractiveness ratings. The printed effect size is r(74) = 0.40 for cued names (p_adjusted < 0.001); a "significant positive correlation" contrasted with no significant correlation for uncued names (r(74) = −0.04, p_adjusted = 0.742).

"revealed a significant positive correlation between the number of SOs and the attractiveness ratings of the faces associated with the cued names (r(74) = 0.40, padjusted < 0.001). In contrast, the correlation between the number of SOs and attractiveness ratings for the faces associated with the uncued names was not significant (r(74) = −0.04, padjusted = 0.742)"

Zhao 2025 (2)¶

Zhao, H., Lin, X., Yuan, K., Hu, X., Wang, X., Su, W., Wang, Q., & Lu, L. (2025). Updating social evaluation during sleep. npj Science of Learning. https://doi.org/10.1038/s41539-025-00356-9

q3 · i? · causal · r2

Secondary control analysis ruled out N1 sleep differences between groups as a confound: N1 duration and percentage showed no significant correlation with cued-name attractiveness ratings (r(104) = −0.047 and −.096), since cues were delivered primarily during SWS.

"This was confirmed by the lack of significant correlations between N1 duration/percentage and attractiveness ratings of the mental representation of the cued name (N1 duration:r(104) =−0.047, p = 0.632; N1 percentage: r(104) = -.096,p = 0.330)"

Discussion¶

Learner Variables¶

• Sleep — predictor: learners who differ on it differ in outcomes

Related Claims¶

• Mere acoustic name exposure during sleep without positive traits does not enhance mental facial representations of the named person — related
• Sleep cueing with name+positive trait pairs biases trait memory toward more positive and less negative memories of the cued person — related
• Sleep cueing with name+positive trait pairs improves explicit attitudes: likeability, social willingness, and trust choices favor the cued person — related
• Sleep cueing with name+positive trait pairs improves implicit attitudes (IAT D-scores) toward the cued person — related
• Acoustic name+positive trait pair cueing during slow-wave sleep increases the perceived attractiveness of the cued person's mental facial representation — related
• Cortical delta oscillations during slow-wave sleep support declarative memory consolidation — related