visual comprehension within the absence of any exterior stimulant. Visual hallucinations might be simple or complex. With regard to hallucinations correlated with psychoses, the person is not aware of the unrealness of the comprehension, whereas awareness of this is kept in other circumstances. Visual hallucinations might stem from correlation with lesions of the peripheral or central visual pathway or visual cortical regions; they are frequently existent in conditions such as temporal-lobe epilepsy and might arise in periods of extended isolation.
VISUAL HALLUCINATION: “Visual hallucinations are not uncommon of persons who have been cut off from society for so long.”