In a famous case study, researchers examined a railroad foreman named Phineas Gage who survived after an iron tamping rod was driven through his skull, damaging much of his left frontal lobe. Before the accident, Gage was described as responsible, hardworking, and well-liked. After the accident, friends reported he became impulsive, profane, and unable to follow through on plans. Researchers later reconstructed the path of the rod using his preserved skull.
Gage's personality changes most directly support which conclusion about the frontal lobes?
- Acheck_circle
They contribute to executive function, impulse control, and personality regulation.
- B
They control involuntary functions such as heart rate and breathing.
- C
They are responsible for forming new long-term memories.
- D
They are primarily responsible for processing visual information.
Explanation
Gage's case is a classic demonstration that the frontal lobes (particularly the prefrontal cortex) play a central role in executive functions, social judgment, impulse control, and personality. Visual processing is in the occipital lobe; vital functions are regulated by the medulla; memory formation involves the hippocampus.