Hypergraphia

Two features of the interictal behavior syndrome are relevant: hypergraphia or the tendency to write compulsively and often repetitively, and verbosity or loquaciousness, the tendency to be overly talkative, rambling, and circumstantial in speech.

There is some suggestion that hypergraphia is associated with non-dominant hemisphere temporal lobe disturbances (Trimble, 1986c).

Two cases of mania and hypergraphia in patients with temporal lobe epilepsy were reported by Sanders and Mathews (1994). In the first case, a 58-year-old right-handed man suffered a ruptured right middle cerebral artery aneurism, which required a craniotomy. During interictal periods, the patient demonstrated hypergraphia, as well as several episodes of alternating manic and mildly depressive phases.