What changes in behavior occur in OrbitoFrontal lesions?
- lack of appreciation
- disregard to social rules
- disinhibition and sometimes episodic dyscontrol (short bursts of anger)
What changes in behavior occur in Lateral Frontal damage?
- flat affect, blunted emotional response
- lack of self-awareness (in behavior, emotions, and thought processes)
- imitate behavior
- seperation of action (response) from knowledge
What are clinical characteristics of Lateral Frontal damage?
- normal intelligence
- STM impairments: Working Memory
- Exec. Fxn Impaired: control
- Frontal release signs: sucking, snout, grasp
What are cogntive changes to Lateral frontal cortex dmg?
- Inability to initiate, stop, modify (perseveration) to changing stimuli
- Inability to organize and plan
- Inability to handle sequential behavior--> impaired problem solving
- Inability to Inhibit responses
What test would you use to check if someone has lateral frontal damage and what would it check?
Wisconsin Card Sort, check to see if person continues to perform same action even with change in stimuli.
What is perseveration?
Being stuck in the present, no change
If a patient cannot inhibit responses, what task would one use to see if that is true?
What is leucotomy?
Burning of frontal fibers.
What are the subdivisions of the frontal lobe?
- Lateral-exec. control of cognition
- OrbitoFrontal- exec. control of social and emo behavior
- Medial- interplay/mediates lateral + orbital, monitor behavior