Answer
Symptoms and signs indicate that Robert sustained injury to the anterior association area , including the prefrontal cortex of the prefrontal lobe. People who sustain an injury in this region of the brain exhibit the following pattern of behavior:
. Carelessness about personal appearance
Los off good judgment
Inatttentiveness
Obliviousness of social propriety
Loss of inhibitions
Robert exhibited all of these behaviours, and is a classical case of a patient with prefrontal lobe damage.
Work Step by Step
The anterior association area of the prefrontal lobe receives current sensory information and integrates it with past experiences. It then helps you understand what is socially acceptable, and instructs you how to behave appropriately. Robert's carelessness about his personal appearance and his anti-social act of defecation in a waste basket, make the diagnosis of prefrontal lobe injury.
