Not really, no. I've seen someone be possessed by the memory of someone else... I haven't had that happen to me, though.

[That was a very weird case with a very weird Black Mage. Thankfully it seems to be resolved these days, but oof.]

Well, where I'm from memory is also made of aether. It's not inconceivable that it could have a powerful effect on the body, if the squid bodies are naturally unstable.