[Olfactory disorders in patients with psychiatric diseases].

In recent times, there were a lot of different investigations dedicated to olfactory disorders in patients with psychiatric diseases.Nevertheless,olfactory discrimination and olfactory identification usually are not used in everyday clinical neurological and psychiatric examination, if a patient hasn't got any complaints. A review of research over the past two decades on olfactory disorders and their diagnosis in patients with schizophrenia, depression, epilepsy, and alcohol dependency is presented.