AP PSYCHOLOGY

Detailed explanation-1: -The exact causes of schizophrenia are unknown. Research suggests a combination of physical, genetic, psychological and environmental factors can make a person more likely to develop the condition. Some people may be prone to schizophrenia, and a stressful or emotional life event might trigger a psychotic episode.

Detailed explanation-2: -Research has not identified one single cause of schizophrenia. It is thought that an interaction between genes and a range of environmental factors may cause schizophrenia. Psychosocial factors may also affect the onset and course of schizophrenia.

Detailed explanation-3: -In some people, schizophrenia appears suddenly and without warning. But for most, it comes on slowly, with subtle warning signs and a gradual decline in functioning, long before the first severe episode. Often, friends or family members will know early on that something is wrong, without knowing exactly what.

Detailed explanation-4: -Emerging evidence has demonstrated that stress and other environmental factors may contribute to the development of schizophrenia. Although genes do play a role in the disease, the genetic concordance rate of schizophrenia is approximately 50%-even in identical twins.