This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Psychiatry
Which of the following behavioral problems would suggest an organic brain lesion : 
Select and explain. 
A. Visual hallucinations, B. Formal thought disorder, C. Auditory hallucinations, D. Depression
A: Visual hallucinations
Answer: A: Visual hallucinations 
Explanation: While the majority of hallucinations reported in primary psychotic disorders are auditory, they may also be visual, olfactory, tactile, or gustatory.
Visual hallucinations have been reported in 16% – 72% of patients with schizophrenia and schizoaffective disorder.