Head | Psychiatry | Psychiatric Problem (Symptom)
It is the progressive loss of cognitive function due to damage or brain disorders. Typically, this causes cognitive impairment and inability to perform activities of daily living. Cognitive deficits can affect anyone's brain functions, particularly the areas of memory, language (aphasia), attention, visual-constructive skills, the praxis and executive functions such as problem solving or response inhibition. The insanity as a disease progresses may also show psychotic features, depression and delusions.
Within the first findings, behavioural symptoms include changes in personality or behaviour mild, which later become more evident with delirium or hallucinations. There are different classification systems for dementia based on the problems encountered: cortical (memory, language, thought, social), subcortical (emotions, movement, and memory), progressive (cognitive abilities get worse over time), primary (result of a specific disease such as Alzheimer disease and secondary (occurring due to disease or injury).
The causes of psychiatric disorders are generally complex, and interact and vary according to the particular disorder and individual. Genetics, early development, trauma, drugs, disease or injury, neural/psychological mechanisms, life experiences, society and culture can all contribute to the development or progression of mental disorders.