Using an apparatus in which a test cage and a surrounding display could be rotated independently, an attempt was made to evaluate the influence over time of perceptual dissonance and movement on ambulation and defecation measures of emotional upset. It was predicted that on the first day a motion-dissonance group of rats would be most upset, intermediate scores would be received by motion-alone and dissonance-alone groups, while a no-motion-no-dissonance group would be least emotional. Linear and quadratic trends were expected. The results largely confirmed the above predictions although confirmation was stronger with the ambulation measure.
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