[Analysis of functional and biochemical changes in feline cerebral hemispheres after subchronic haloperidol administration].

Feline experiments have revealed that subchronic haloperidol causes asymmetric changes in the mesencephalic levels of dopamine and serotonin and impairs intrahemispheric balance between the dopaminergic and serotoninergic systems. At the same time the neuroleptic increases motor asymmetry, which appears in response to apomorphine, and changes the nature of interhemispheric relationships. The findings suggest that these changes may be one of the causes of extrapyramidal disorders associated with long-term use of the neuroleptic.