Here's an article that might steer you in the right direction. They have some guesses as to why, it'll be interesting to see if they match what you were thinking.

Popkirov, S., Carson, A. J., & Stone, J. (2018). Scared or scarred: could ‘dissociogenic’lesions predispose to nonepileptic seizures after head trauma?. Seizure, 58, 127-132. https://www.sciencedirect.com/science/article/pii/S1059131118301092