mental disorder disabilities psychosis impairment neurological disorder epilepsy parkinson's disease catatonia addiction ADHD agoraphobia anorexia nervosa personality disorder anxiety bipolar binge-eating bulimia nervosa body dysmorphic disorder borderline personality disorder claustrophobia delusional disorder depersonalisation derealisation depression dissociative identity disorder dissociative amnesia narcissistic personality disorder intermittent explosive disorder OCD panic disorder PTSD pica disorder pyromania rumination disorder schizophrenia schizoaffective disorder selective mutism separation anxiety sleep disorders insomnia parasomnia social anxiety alzheimer's dementia autism down syndrome intellectual disability