Many of the symptoms of<unk>  Mental Disorder depend on the cause of the disorder, but are similar and include physical or behavioral elements. Dementia and delirium are the cause of the confusion, orientation, cognition or alertness impairment. Therefore, these symptoms require more attention because hallucinations, delusions, amnesia, and personality changes are the result. These effects of the dementia and delirium are not joined with the changes of sensory or perception abilities. Memory impairment, judgment, logical function and agitation are also some extremely common symptoms. The more common symptoms of<unk>  are confusion; impairment of memory, judgment, and intellectual function; and agitation. Often these symptoms are attributed to psychiatric illness, which causes a difficulty in diagnosis. Associated conditions Disorders that are related to injury or damage to the brain and contribute to<unk>  include, but are not limited to: * Alcoholism * Alzheimer's disease * Attention deficit/hyperactivity disorder * Autism * Concussion * Encephalitis * Epilepsy * Fetal alcohol<unk>  * Hypoxia * Parkinson's disease * Intoxication/overdose caused by substance use disorders including alcohol use disorder * Non-medical use of sedative hypnotics * Intracranial hemorrhage/trauma * Korsakoff<unk>  * Mastocytosis * Meningitis * Psychoorganic<unk>  * Stroke/transient ischemic attack (TIA) * Withdrawal from drugs, especially sedative hypnotics, e.g. alcohol or benzodiazepines Other conditions that may be related to<unk>  include: clinical depression, neuroses, and psychoses, which may occur simultaneously with the<unk> .
Organic brain syndrome
Diencephalic syndrome
Acquired brain injury
Otodental syndrome
Chiasmal syndrome
Traumatic brain injury
Pediatric concussion
Autoimmune encephalitis