Brad Wallace April 29, 2015 Living with SDAM means living without memories Brad Wallace April 29, 2015 I've heard of similar things from brain injuries, but never being born with it. Wow - that is weird. Her semantic memory — the part that allows her to learn facts — is fine. Asking if she remembers her high school prom illustrates the difference between the two types of memory.“If you ask me about prom, I know that I didn’t go to prom and I know that I decorated for prom. But that’s different from remembering anything about that,” she says.