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Rotation-induced conditioned rejection in the taste reactivity test
N Cordick1, L A Parker, K P Ossenkopp
1Department of Psychology, Wilfrid Laurier University, Waterloo, Ontario, Canada.
Neuroreport
|June 25, 1999
Summary
Motion sickness can induce conditioned rejection reactions in rats, mimicking nausea. This study demonstrates conditioned rejection using a non-pharmacological method, supporting its use as a nausea model.
Area of Science:
- Neuroscience
- Behavioral Science
- Animal Models
Background:
- Nausea is a common symptom with limited objective measures.
- Conditioned taste aversion is a well-established learning paradigm.
- Motion sickness is a complex phenomenon involving vestibular and central nervous system pathways.
Purpose of the Study:
- To investigate if motion sickness can induce conditioned rejection reactions in rats.
- To establish a non-pharmacological model for studying nausea.
- To validate the conditioned rejection reaction as a measure of nausea in rats.
Main Methods:
- Utilized the taste reactivity test in rats.
- Employed motion sickness (rotation) as a conditioning stimulus.
- Administered saccharin solution via intraoral infusion during conditioning trials.
Main Results:
- Rats displayed conditioned rejection reactions after rotation-paired saccharin infusion.
- Conditioned rejection reactions were observed following three conditioning trials.
- This represents the first use of a non-pharmacological agent to produce conditioned rejection.
Conclusions:
- Motion sickness can effectively produce conditioned rejection reactions in rats.
- The conditioned rejection reaction serves as a valid rat model for nausea.
- This study validates a novel, non-pharmacological approach to nausea research.