Final answer:
Orbitofrontal lesions can lead to impaired social skills, repetitive motor behaviors, and strict adherence to rituals. A famous case, Phineas Gage, experienced personality changes after such damage.
Step-by-step explanation:
Orbitofrontal lesions cause patients to appear with impaired social skills, repetitive motor behaviors, strict adherence to certain rituals, and preoccupation with specific subjects. These lesions affect the prefrontal cortex, which is responsible for planning, decision-making, and controlling emotional impulses. One famous case of such damage is that of Phineas Gage, a railroad worker who experienced a severe personality change after a metal spike impaled his prefrontal cortex. This demonstrates the important role of the prefrontal cortex in personality and social behavior.