"explained why he acted abnormally"Neuropsychologist, currently on my 2nd year out of 5.
It's basically dealing with patients' cognitive alterations resulting from trauma (bullet, hammer to the head...), neurodegenerative diseases or other complications like a stroke. We study a lot of things related to the brain's function like vision, memory, attention, decision making, language.
An example of this was Phineas Gage's case, the one that fascinates me most, where he got impaled by a large metal rod through his brain's frontal lobe. By studying his case, it was possible to find treatments and discoveries such as the fact that the frontal lobe specializes in executive functions like planning and inhibition (e.g. to limit your behavior), which explained why Phineas behaved abnormally after the incident.
That's only the clinical aspect of neuropsychology, but I could also try for a research path. Alternatively I could also work in traumatology, neurology... it's fine for me as long as I work in a hospital.
Knowing in detail how vision and all these other cognitive functions work in detail is truly fascinating for me.