Formed visual hallucinations are seen in a lesion of -: (A) Frontal, (B) Occipital, (C) Temporal, (D) Arcuate fasciculus
Answer is C. Unformed (elementary) visual hallucination:- ocular disorders, disorders of the occipital lobe, migraine.
Formed visual hallucination:- Disorders of Temporal lobe, diseases of upper brain stem or thalamus (peduncular hallucinosis).
Note:- Temporal lobe lesions can cause → Auditory, visual (formed) and olfactory hallucinations.