The characteristics feature of a frontal lobe tumor is:

Frontal lobe tumors Personality changes are common symptom of frontal lobe tumor. Frontal lobe controls behavior and judgment. Patients may be socially disinhibited, display antisocial behavior, shows severe impairment of judgment, insight and foresight. Witzelsucht syndrome: Self amusement from poor jokes and puns, also known as pathological joking, is seen in frontal lobe tumors.