Psychological Medicine

Research Article

Disturbed voluntary motor activity in schizophrenic disorder

Theo C. Manschrecka1 c1, Brendan A. Mahera1, Mary E. Rucklosa1 and Donald R. Vereena1

a1 Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Boston, Mass., USA


Although motor features associated with schizophrenic disorders have been reported often, they have never been well understood and, since the introduction of neuroleptic drugs, they have been largely neglected. We report that disturbed voluntary motor activity occurs frequently among schizophrenics, is especially associated with features of formal thought disorder, but also with affective blunting, neurologic ‘soft’ signs. Certain motor and thinking abnormalities in schizophrenics may have a common pathogenetic basis.


c1 Address for correspondence: Dr Theo C. Manschreck, Department of Psychiatry, Massachusetts General Hospital, Fruit St, Boston, MA 02114, USA.