False interpretation of an existing stimulus is termed as
Illusion Illusion is a false interpretation of an existing stimulus by the senses, eg person sees a stick as a snake and reacts accordingly. A normal person sometimes may get an illusion eg a tree may be interpreted as ghost but able to correct it. A mentally ill person is not able to correct the illusion. Ref: FORENSIC MEDICINE AND TOXICOLOGY Dr PC IGNATIUS THIRD EDITION PAGE 360
Hallucination
Illusion
Dellusion
Delirium
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