Well…maybe. https://en.wikipedia.org/wiki/Phineas_Gage#Mental_changes_and_brain_damage https://en.wikipedia.org/wiki/Phineas_Gage#Mental_changes_an... The ext

Well…maybe. https://en.wikipedia.org/wiki/Phineas_Gage#Mental_changes_and_brain_damage https://en.wikipedia.org/wiki/Phineas_Gage#Mental_changes_an... The extent of the changes were known to be hugely exaggerated by charlatans at the time, and, his personality seemingly returned to something resembling his pre-accident state after about 3 years. https://www.npr.org/sections/health-shots/2017/05/21/528966102/why-brain-scientists-are-still-obsessed-with-the-curious-case-of-phineas-gage https://www.npr.org/sections/health-shots/2017/05/21/5289661... You also…well, you can’t ethically have a control group in this case, and taking out a chunk of your brain probably does something, but there’s the small matter of the dude got a giant chunk of metal through his skull. Hard to fully distinguish between brain trauma and awful PTSD from getting a giant chunk of metal through your skull.