behavior/neurological
• do not show an increase in locomotor activity following D-amphetamine administration, however response to cocaine is no different from wild-type
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• show a significant decrease in wheel-running activity 2 hours after onset of the dark period for a duration of 6 hours, however see no differences from wild-type in circadian rhythmicity or lcomotor activity during the subjective day, in performance in the rotarod or Morris water maze, and in cued or contextual fear conditioning
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• reduction in exploratory rearing behavior, but not ambulatory activity, in a novel cage environment
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