Umm schizophrenia does effect (with an E) memory. I was told that by multiple professors and read it in multiple books.
Short term memory problems are a real problem for some people who have schizophrenia. I have a tiny bit of it myself, I have to ask someones name twice when I meet them because when they introduce themselves, then we have a conversation, I forget their name by the end of it.
I’m pretty sure it’s affect. Affect is a verb where effect is mostly used as a noun. Effect can be used as a verb in the case of bringing something into being or producing something.