"remarkably, phineas gage survived a horrific traumatic brain injury in 1848, but was not the same person as before his accident. although outwardly normal in his intelligence, speech, and movement, gage became prone to angry outbursts and unreliability. in which area of his brain did phineas gage experience trauma? "

The area of the brain that Phineas Gage experienced the trauma in was the left frontal lobe.

Explanation:

The left frontal lobe is responsible for the management of arising impulses. When this part of the brain is traumatized, the person is likely to become short-tempered and highly intolerant. The reason that the trauma experienced in this area of brain makes the person less stable because this part of the brain controls verbal abilities.

Earthquake fault lines. map above represent