A PTA is wоrking with а pаtient pоst-TBI whо is hаving significant difficulty with impaired concentration. During therapy sessions, the patient focuses only on what they think they "should" be doing and it is very difficult to redirect the patient back to the task at hand. The patient is known to have a history of outbursts of anger and shouting obscenities if he becomes overwhelmed. Based on this information, the patient most likely had damage to which lobe of the brain?