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Related Experiment Videos

Modulation of body temperature through taste aversion conditioning.

D F Bull1, R Brown, M G King

  • 1Faculty of Medicine, University of Newcastle, NSW, Australia.

Physiology & Behavior
|June 1, 1991
PubMed
Summary

Rats learned to associate saccharin flavour with body temperature changes induced by bacterial lipopolysaccharide or lithium chloride. This taste aversion conditioning demonstrated true conditioned thermoregulatory effects.

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Area of Science:

  • Neuroscience
  • Immunology
  • Behavioral Science

Background:

  • Bacterial lipopolysaccharide (LPS) induces hypothermia followed by fever.
  • Lithium chloride (LiCl) causes hypothermia without fever.
  • Understanding conditioned physiological responses is crucial for behavioral science and immunology.

Purpose of the Study:

  • To investigate conditioned body temperature changes using LPS and LiCl as unconditioned stimuli.
  • To determine if taste aversion conditioning can elicit thermoregulatory responses.
  • To contrast findings with existing literature on paradoxical or compensatory conditioned responses.

Main Methods:

  • Rats were conditioned using saccharin flavour as the conditioning stimulus.
  • Unconditioned stimuli included injections of bacterial lipopolysaccharide (LPS) and lithium chloride (LiCl).

Related Experiment Videos

  • Body temperature changes were monitored during conditioning and reexposure to saccharin.

    • Main Results:

    • Reexposure to saccharin alone elicited body temperature changes similar in direction and kinetics to the conditioning day.
    • Conditioned hypothermia and fever responses were observed, though reduced in magnitude.
    • These findings represent a true conditioned effect, differing from paradoxical responses in other models.

    Conclusions:

    • Taste aversion conditioning can elicit specific thermoregulatory responses.
    • Differential effects of unconditioned stimuli may explain variations in conditioned responses.
    • Findings suggest implications for behavioral conditioning of immunity via thermoregulatory pathways.