Hypergravic fields and parallel controllers for thermoregulation

C. B. Monson, J. M. Horowitz, Barbara A Horwitz

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


To test the proposal that mammals have parallel neurocontrollers for temperature regulation, Long-Evans hooded male rats were exposed to cold while in a 3-G field. When exposed to cold, these rats consumed 35% less oxygen/min at 3 G than they did when exposed to cold at 1 G. However, rats acclimated for 6 wk to 5°C consumed oxygen at the same rate during cold exposure at 3 G as at 1 G. Because cold-acclimated rats generate heat primarily by nonshivering thermogenesis while rats acclimated to room temperature rely to a greater extent on shivering, the 35% decrease in oxygen consumption of cold-exposed room-temperature rats in 3-G fields may reflect an inactivation of shivering. These oxygen consumption measurements, together with measurements of core and tail temperatures of rats in 3-G fields, are consistent with the proposal that neurocontrollers for thermoregulation are arranged in parallel and can be uncoupled by hypergravic fields.

Original languageEnglish (US)
Pages (from-to)990-995
Number of pages6
JournalJournal of Applied Physiology Respiratory Environmental and Exercise Physiology
Issue number3
StatePublished - 1983

ASJC Scopus subject areas

  • Endocrinology
  • Physiology


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