behavior/neurological
N |
• no indication of increased anxiety
• general ambulatory and rearing activity normal
• normal social approach tests
• normal performance in a Morris water maze
|
• swim 25% faster than controls during initial cued tests in a Morris water maze but swim at a normal speed during spatial learning
|
• basal response to novel odorant stimulus similar to controls
• after familiarization with a new test odor (chocolate chips) controls increased odor related exploratory behavior and mutant mice did not
|
• 60% fewer syllables (calls) per 3 minute interval by pups separated from their dam
|
growth/size/body
N |
• body weight normal
|
nervous system
N |
• no gross morphological changes in the brain
|
homeostasis/metabolism
• trend toward lower levels of dopamine in the brain
|
• trend toward lower levels of norepinephrine in the brain
|
• decreased serotonin levels in the brain
|