[Long-term relapse prevention with risperidone in 215 schizophrenic patients].

Introduction: A total of 215 schyzophrenic patients according to DSM-IV criteria in treatment on risperidone were included in an open label postmarketing surveillance 18 months study to evaluate safety and effectivity of the drug in preventing relapses.

Methods: The Brief Psychiatric Rating Scale, Global Functional Assessment Scale and the Clinical Global Impression were used to assess. Safety was evaluated by the UKU subscale for neurological side effects.

Mental disorders and medical conditions. A community study in a small island in Spain.

Objectives: This study focuses on the comorbidity between medical and psychiatric illnesses in a sample taken from the general population.

Methods: We design a two-stage epidemiological community study in the island of Formentera (Spain), using the Schedules for Clinical Assessment in Neuropsychiatry (SCAN). In the first stage, the sample (N=697) was screened using the General Health Questionnaire (GHQ-28).

[Frontal lobe involvement and cortical and subcortical deterioration in Parkinson's disease evaluated using quantified electroencephalography].

Quantified electroencephalography (EEGq) by means the Fast Fourier Transformed system (FFT) was carried out on two groups of patients with idiopathic Parkinson's Disease (PD). The first one was with symptoms of cortical deterioration, and the second group consisting of subjects without signs of cortical impairment. The study of the specific EEGq indices has led to the establishment of parameters which establish differences between these two groups.