In which disorder does a person seem to experience at least two or more distinct personalities existing in one body? schizophrenia?

The disorder in which the person experiences two or more distinct personalities is dissociative identity disorder (DID). While schizophrenia is the disorder that is related to person’s inability to think, express and behave judgingly.

Further Explanation:

The dissociative identity disorder (DID) is a type of disorder in which a person experiences two or more personalities. It is also known as multiple personality disorder. The characteristics of a person who has this particular condition are failure to comply with a particular memory and identity, to be concise the person is forgetful. One of the primary reasons for this psychological condition is generally a traumatic experience during early childhood (including physical, sexual and emotional). The psychological term for the interchange in personality is termed as “switching”. The common symptom of DID is amnesia, acute stress disorder, anxiety, depression and distress.

On the other hand schizophrenia is a disorder in which the person is not able to think and express himself. It is a mental illness in which the person is not able to differentiate between real and hallucinated memory. The common symptom of schizophrenia is hallucination, trouble in focusing, poor decision making, delusion and other psychotic symptoms.  

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Answer Details:

Grade: Senior school

Subject: Biology

Chapter: Psychological illnesses

Keywords: Schizophrenia, Dissociative Identity disorder, Multiple personality disorder, Psychosis, Psychotic episodes, Psychotic symptoms, delusion, poor decision making, trouble focusing, memory, Switching, Switch personality, Traumatic experience, depression, anxiety.