| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
1 John B. Pierce Foundation, and Department of Physiology, Yale University School of Medicine, New Haven, Connecticut
Male and female rats, equipped with stainless steel re-entrant tubes implanted in the brain adjacent to one preoptic area, were placed in cages with accessible activity wheels. Brain temperatures were recorded continuously for periods up to 48 hr by means of thermocouples inserted into the tubes. The activities of running, feeding, and drinking were recorded simultaneously. About 90% of feeding and drinking activity occurred irregularly during three to nine periods of running activity at night. Active periods at night were associated with brain temperatures 1.0–2.5 C higher than inactive periods during the night or day. Moderate restraint with absence of food abolished these cyclic temperature variations whereas absence of food alone did not. During the night of estrus (9 pm–3 am), marked increases in activity frequently were associated with elevated mean preoptic temperatures.
Key Words: feeding and brain temperature • activity and brain temperature • preoptic temperature variations • activity and estrous cycle • temperature variations during estrus
Submitted on October 23, 1964
This article has been cited by other articles:
|
|
 |
|
  E. D. Herzog and R. M. Huckfeldt Circadian Entrainment to Temperature, But Not Light, in the Isolated Suprachiasmatic Nucleus J Neurophysiol, August 1, 2003; 90(2): 763 - 770. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 E. A. Kiyatkin and R. A. Wise Brain and Body Hyperthermia Associated with Heroin Self-Administration in Rats J. Neurosci., February 1, 2002; 22(3): 1072 - 1080. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
N. F. Ruby, D. E. Burns, and H. C. Heller Circadian Rhythms in the Suprachiasmatic Nucleus are Temperature-Compensated and Phase-Shifted by Heat Pulses In Vitro J. Neurosci., October 1, 1999; 19(19): 8630 - 8636. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 N. F. Ruby and H. C. Heller Temperature Sensitivity of the Suprachiasmatic Nucleus of Ground Squirrels and Rats in vitro J Biol Rhythms, June 1, 1996; 11(2): 126 - 136. [Abstract] [PDF]
|
|
|
|
 |
|
 E Moser, I Mathiesen, and P Andersen Association between brain temperature and dentate field potentials in exploring and swimming rats Science, February 26, 1993; 259(5099): 1324 - 1326. [Abstract] [PDF]
|
|
|
|
|
|
N. H. Spector, J. R. Brobeck, and C. L. Hamilton Feeding and Core Temperature in Albino-Rats: Changes Induced by Preoptic Heating and Cooling Science, July 19, 1968; 161(3838): 286 - 288. [Abstract] [PDF]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| Visit Other APS Journals Online |
