nominally significantp < 0.05
Nominally significant differences (uncorrected p < 0.05) were observed at Cz, T4, and O2 electrodes in a narrow time range between 449 and 487 ms; however, we observed more positive values in CTLs, compared to NMS, whereas the opposite pattern was observed in the original study ( Fig. 1 /C ). 3.3 HEP during REM in nightmare and control participants: Study 2 The comparison of HEP during REM sleep did not yield significant differences across NMs and CTLs in Study 2 ( Fig. 1 /B ).