Table 3.

Correlations between REM sleep measures and memory, ΔValence, and ΔArousal for negative pictures

Hit rateΔValenceΔArousal
Total REM%
    r−0.09−0.150.06
    p0.670.480.78
REM3%
    r−0.23−0.41*0.22
    p0.270.040.29
REM4%
    r0.09−0.080.01
    p0.650.690.97
Total SWS%
    r−0.26−0.020.04
    p0.210.920.86
SWS1%
    r0.02−0.020.18
    p0.930.940.40
SWS2%
    r−0.170.040.05
    p0.410.840.82
  • Total REM% = percentage of the night in rapid eye movement sleep; REM3% = percentage of the third quarter of the night in REM; REM4% = percentage of the fourth quarter of the night in REM; Total SWS% = percentage of the night in slow wave sleep; SWS1% = percentage of the first quarter of the night in SWS; SWS2% = percentage of the second quarter of the night in SWS.

  • *p < 0.05, two-tailed Pearson correlation.