Abstract
The relation between open-field and emergence tests was examined in mice with idiopathic hypertension. Spontaneous hypertensive mice (SHM) crossed more segments and reared more often in the open-field than normotensive controls at both age levels. In contrast, grooming episodes decreased only in the older SHM cohort. While young SHM emerged more quickly from a toy object only partially, complete emergence was faster only in the older SHM cohort. In the entire series, open-field segments were inversely correlated with 2- and 4-paw emergence latencies. There was also an inverse correlation between rears and 2-paw emergence but a positive correlation between grooming episodes and both types of emergence. In view of its association with open-field activity, the emergence test may have value in screening potential ADHD therapies.
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