A 48 year old male incurred road traffic accident leading to a brain lesion. Now the patient feels euphoric, laugh uncontrollably, joke & make puns. Which of the following brain part may be involved?
Parietal lobe
Prefrontal cortex
Occipital lobe
Cerebellum
Ans. B. Prefrontal cortexA lesion to the left prefrontal area abolishes the normal mood-elevating influences of this area and produces depression and uncontrollable crying. In contrast, a comparable lesion to the right prefrontal area may produce laughter, euphoria, and a tendency to joke and make puns.
Miscellaneous