Changes in cardiac variability after REM sleep deprivation in recurrent nightmares.

Sleep
Tore A NielsenPaola Lanfranchi

Abstract

To assess whether dysfunctional autonomic regulation during REM sleep as indexed by heart rate variability (HRV) is a pathophysiological factor in frequent nightmares (NMs). Monitoring with polysomnography (PSG) and electrocardiography (ECG) for 3 consecutive nights: Night 1 (N1), adaptation night; N2, administration of partial REM sleep deprivation; N3, recovery night. Differences between NM and control (CTL) groups assessed for ECG measures drawn from wakefulness, REM sleep, and Stage 2 sleep on both N1 and N3. Hospital-based sleep laboratory. Sixteen subjects with frequent NMs (> or = 1 NM/week; mean age = 26.1 +/- 8.7 years) but no other medical or psychiatric disorders and 11 healthy comparison subjects ( < 1 NM/month; mean age = 27.1+/- 5.6 years). NM and CTL groups differed on 2 REM sleep measures only on N1; the NM group had longer REM latencies and REM/NREM cycle durations than did the CTL group. No differences were found on time domain and absolute frequency domain ECG measures for either N1 or N3. However, altered HRV for the NM group was suggested by significantly higher LFnu, lower HFnu, and higher LF/HF ratio than for the CTL group. Results are consistent with a higher than normal sympathetic drive among NM subjec...Continue Reading

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Citations

Dec 19, 2014·The International Journal of Neuropsychopharmacology·Agorastos AgorastosCüneyt Demiralay
Sep 25, 2015·Borderline Personality Disorder and Emotion Dysregulation·Franc PaulGeorg W Alpers
Apr 4, 2017·The Journals of Gerontology. Series A, Biological Sciences and Medical Sciences·Hsi-Chung ChenPesus Chou
May 17, 2019·Journal of Sleep Research·Péter Simor, Borbála Blaskovich
Apr 25, 2012·European Archives of Psychiatry and Clinical Neuroscience·Péter SimorRóbert Bódizs
Jun 28, 2017·Sleep·Louis-Philippe MarquisTore Nielsen
Nov 22, 2012·Stress : the International Journal on the Biology of Stress·Agorastos AgorastosOliver Stiedl
Jun 16, 2021·Psychological Medicine·Thomas MäderEdward Franz Pace-Schott
Oct 28, 2021·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Mimma NardelliGaetano Valenza

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