Fluctuations of rectal and tympanic temperatures with changes of ambient temperature during night sleep

Many studies have demonstrated a decline in core temperature during slow wave sleep (SWS) in animals and humans. However, there are few studies that have investigated core temperature fluctuation during rapid eye movement sleep (REM) at different ambient temperatures. This study examined the effects...

Full description

Saved in:
Bibliographic Details
Published in:Psychiatry and clinical neurosciences 1997-06, Vol.51 (3), p.129-133
Main Author: HASHIZUME, YUJI
Format: Article
Language:English
Subjects:
Adult
ambient temperature
Biological and medical sciences
Body Temperature Regulation - physiology
Brain - physiology
Cold Temperature
Ear, Middle
Fundamental and applied biological sciences. Psychology
Hot Temperature
Humans
Male
rectal temperature
Rectum
REM sleep
Sleep, REM - physiology
slow wave sleep
Thermoregulation. Hibernation. Estivation. Ecophysiology and environmental effects
tympanic temperature
Vertebrates: anatomy and physiology, studies on body, several organs or systems
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Many studies have demonstrated a decline in core temperature during slow wave sleep (SWS) in animals and humans. However, there are few studies that have investigated core temperature fluctuation during rapid eye movement sleep (REM) at different ambient temperatures. This study examined the effects on core temperature of continuous hot or cold exposure during sleep. Ten male subjects were exposed to hot and cold stress from 00 h to 1:00 h, when SWS is most predominant, and from 5:00 h to 7:00 h, when REM is predominant. Rectal temperature (Tr) and tympanic temperature (Tt) were monitored for 3 days, and polysomnographies (PSG) were recorded from 23:00 h to 7:00 h. The experiments lasted 3 weeks for each subject, over 2 consecutive nights each week (including an adaptation night and an experimental night). On the experimental night, subjects were exposed to hot (29°C) or cold (21°C) ambience. The core temperature fluctuation under the hot or cold ambience were compared with under the thermoneutral ambience. Under hot ambience, Tr declined significantly in the first 2 hours of sleep, but Tt did not change. In the last 2 hours, both Tr and Tt were significantly elevated. Under cold ambience, both Tr and Tt declined significantly in the first 2 hours. However, in the last 2 hours, neither Tr nor Tt showed any change. The result that Tr and Tt rose in hot ambience during the last 2 hours when REM is predominant suggests that body temperature during REM is influenced by ambient temperature.
ISSN:1323-1316
1440-1819
DOI:10.1111/j.1440-1819.1997.tb02374.x