| Type | MGI:General | Description | adult homozygotes display frequent (1-3 episodes/hour) spontaneous behavioral seizures that resemble those seen in models of limbic epilepsy typical episodes are brief (5-15 sec) with sudden focal dystonic posturing, flexor spasm of one or both forelimbs, and versive head movements episodic, brief freezing spells with tonic posturing are exacerbated by handling |