mortality/aging
• the number of mice surviving to adulthood is low compared to controls
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behavior/neurological
• on day 3 of a cued fear conditioning test only a weak and transient response is seen in response to the conditioned stimulus
• no potentiation of the fear response is seen in response to a startle stimulus unlike in controls
• however, prior to training startle response is similar to controls
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• in a fear conditioning assay
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• reduced latencies to enter open areas or transition to any part of the maze in a zero maze assay
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• impairment of both cued and contextual fear conditioned responses
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growth/size/body
• slight decrease in body weight at weaning and as adults compared to wild-type controls
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