| Type | MGI:General | Description | during the spatial learning period of the water maze with the platform submerged, mutants exhibit show performance deficits compared with controls treatment of mice with the mGluR5 antagonist MPEP show improved performance in the water maze in the water maze probe test in which the platform was removed on the last day, mutants show differences in the entrances and passes into the target zone compared to controls; again, treatment with MPEP resulted in similar behavior to controls |