Bradyphrenia is the slowness of thought common to many disorders of the brain. Disorders characterized by bradyphrenia include Parkinson's disease and forms of schizophrenia. Bradyphrenia can also be a side effect of psychiatric medications. Patients with bradyphrenia may describe or may manifest slowed thought processes, evidenced by increased latency of response. Bradyphrenia is the slowness of thought common to many disorders of the brain. Disorders characterized by bradyphrenia include Parkinson's disease and forms of schizophrenia. Bradyphrenia can also be a side effect of psychiatric medications. Patients with bradyphrenia may describe or may manifest slowed thought processes, evidenced by increased latency of response.