Good evening everyone, i would like to tell something very inusual with my father. He's struggling with his memory a lot and with basics like his writing and the numbers. But two days ago, he had a mild injury in his head, nothing important, only a couple of bruises. After that event, he had a mild recovery of his memory (talking about his past summers when he was young) and his hand writing improves a lot. We talk with his neurologist and his psychotherapist and they mention have seen a couple of situations, but with no scientific explanation. Im searching scientific info about that or any similar experience, glad to hear about it.