Sleep-related penile erections do not occur in rats during carbachol-induced rapid eye movement sleep

Behav Brain Res. 2004 Oct 5;154(2):585-7. doi: 10.1016/j.bbr.2004.02.019.

Abstract

This study was undertaken to find out whether sleep-related penile erections occur in the carbachol-induced rapid eye movement sleep model in rats. Bulbospongiosus EMG, as a measure of penile erection, was recorded along with EEG, EMG, and EOG during normal sleep-wakefulness. These parameters were again recorded after injection of carbachol into the pontine tegmentum. Carbachol-induced rapid eye movement sleep was not accompanied by penile erections.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Carbachol / pharmacology*
  • Cholinergic Agonists / pharmacology
  • Electroencephalography / methods
  • Electromyography / methods
  • Electrooculography / methods
  • Male
  • Pedunculopontine Tegmental Nucleus / drug effects
  • Pedunculopontine Tegmental Nucleus / physiology
  • Penile Erection / drug effects*
  • Penile Erection / physiology
  • Rats
  • Rats, Wistar
  • Sleep Stages / drug effects
  • Sleep Stages / physiology
  • Sleep, REM / drug effects*
  • Sleep, REM / physiology
  • Wakefulness / drug effects
  • Wakefulness / physiology

Substances

  • Cholinergic Agonists
  • Carbachol