Biological Aspects of Mental Disorder

abnormalities acid actions activity acute addiction affective disorder alcohol amphetamine appear associated become behavior blood body brain called cause changes clinical condition death dementia dependence depression develop diagnosis difficulty disease disorders disturbance dopamine doses drinking drugs effects ejaculation emotional epilepsy et al evidence experience factors feel female frequently function genetic heroin homosexual human impotence incidence increased individuals influence involved less levels lives lobe loss major male manic-depressive marijuana mental nervous neurons neurotransmitter norepinephrine normal occur opiate organic orgasm patients pattern penis percent period personality physical present Press problems produce Psychiat psychological psychosis receptors referred relationships relatives reported response schizophrenia seems seizures senile serotonin severe sexual sleep social specific stimulation stress studies subjects suffer suggest suicide symptoms tend therapy thought tion treated treatment twins users usually women York