Dementia is a broad category of brain diseases that cause long term loss of the ability to think and reason clearly that is severe enough to affect a person's daily functioning. For the diagnosis to be present it must be a change from how the person was previously. The most common form of ...
Delirium, or acute confusional state, is a syndrome that presents in two basic forms. In its hyperactive form, it is manifested as severe confusion and disorientation, developing with relatively rapid onset and fluctuating in intensity. In its hypoactive form, it is manifested by an equally sudden ...
Schizophrenia is a mental disorder often characterized by abnormal social behavior and results in failure to recognize the realities. Common symptoms include false beliefs (negative thoughts), unclear or confused mind, auditory hallucinations, reduced social engagement, emotional expression, and ...
Borderline personality disorder (BPD) (called emotionally unstable personality disorder, emotional intensity disorder, or borderline type in the ICD-10) is a cluster-B personality disorder, the essential feature of which is a pattern of marked impulsivity and instability of affects, interpersonal ...
Bipolar disorder, also known as bipolar affective disorder, manic-depressive illness, or affective psychosis, is a mental illness characterized by periods of elevated mood and periods of depression. The elevated mood is significant and is known as mania or hypomania depending on the severity. ...
Autism is a neurodevelopmental disorder characterized by impaired social interaction, verbal and non-verbal communication, and by restricted and repetitive behavior. The diagnostic criteria require that symptoms become apparent before a child is three years old. Autism affects information ...
Anxiety disorders are a group of mental disorders characterized by feelings of anxiety and fear, where anxiety is a worry about future events and fear is a reaction to current events. These feelings may cause physical symptoms, such as a racing heart and shakiness. There are various forms of ...
Amnesia is a deficit in memory caused by brain damage, disease, or psychological trauma. Amnesia can also be caused temporarily by the use of various sedatives and hypnotic drugs. Essentially, amnesia is loss of memory. The memory can be either wholly or partially lost due to the extent of damage ...
