<unk> , also known as geropsychiatry or psychiatry of old age, is a subspecialty of psychiatry dealing with the study, prevention, and treatment of mental disorders in humans with old age.
After a 4 year residency in psychiatry, a psychiatrist can complete a one year fellowship in<unk> , As the population ages, particularly in developing counties this field is becoming more needed.  The diagnosis, treatment and management of dementia is one area of this field.
Geriatric psychiatry
Neuropsychiatry
Cognitive neuropsychiatry
Emergency psychiatry
Behavioral neurology
Oncology nursing
Biological psychiatry
Psychiatric hospital