Repetitive and compulsive behavior in frontal lobe degenerations
Abstract
The authors review the relationship of repetitive behaviors to frontal lobe degenerations and report the repetitive and compulsive behaviors, radiologic imaging findings, and neuropathology of 3 patients with dementia secondary to frontal lobe degeneration. These 3 patients and 78% of 46 proven pathologic cases of frontal lobe degeneration described in the literature demonstrate repetitive behaviors ranging from motor stereotypies to complex obsessive-compulsive disorder. This review suggests that combined damage to the frontal lobe, caudate nucleus, and globus pallidus may account for the repetitive behaviors seen in frontal lobe degenerations, idiopathic obsessive-compulsive disorder, and other neuropsychiatric diseases.
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