DeJuan is highly suggestible and automatically obeys the commands of his brother. He sometimes stands in the same strange posture for hours despite his hands and feet becoming swollen due to immobility. This has been going on for over a year. Which diagnosis does this best illustrate?

a. schizophrenia

b. schizoaffective disorder

c. schizotypal disorder

d. schizophreniform disorder

a. schizophrenia

Explanation:

Schizophrenia: In abnormal psychology, the term schizophrenia is referred to as a chronic or serious mental illness or disorder that hinders or impairs an individual's behavior and thought processes. It can often lead to developed psychosis if left untreated for a long time.

An individual who has developed this disorder often experience delusions, hallucinations, disorganized thinking, and paranoid and false beliefs.

Symptoms:

1. Auditory, and visual hallucination.

2. Cognitive deficit.

In the question above, the given scenario best illustrates the schizophrenia.