Which disorder is linked to genetic predisposition combined with environmental, social, and psychological factors, resulting in bizarre behaviors, hallucinations, and delusions?

The disorder that is linked to genetic predisposition combined with environmental, social, and psychological factors, resulting in symptoms such as bizarre behaviors, hallucinations, and delusions, is schizophrenia. This disorder is characterized by a complex interplay of biological and environmental influences, making it a prime example of how genetics can interact with external factors.

Schizophrenia typically emerges in late adolescence or early adulthood and manifests in a range of symptoms that can significantly impair functioning. These symptoms include positive manifestations like hallucinations (perceptions without external stimuli, such as hearing voices), delusions (strongly held false beliefs), disorganized thinking, and negative symptoms (such as emotional flatness or lack of motivation).

The presence of a genetic component is supported by family studies demonstrating higher rates of schizophrenia among relatives of affected individuals compared to the general population. Additionally, environmental factors such as prenatal exposure to infections, psychosocial stressors, and substance abuse (particularly during adolescence) have also been shown to increase the risk.

Other disorders listed, while they may involve psychotic features, do not encompass the same breadth of symptoms or the robust interplay of genetic and environmental factors as schizophrenia does. Thus, schizophrenia stands as the disorder that most accurately fits the criteria described.