Is There a Place Memory?

We use very intense, little, small neodinium magnets. I've left those in homes where there is place memory and it goes away. It could be a placebo the people might just simply accept that as kind of ignoring it unconsciously. There's no reason why we should be measuring something unusual there when we've eliminated all the other possibilities. And even even if we were putting magnets down, wouldn't get rid of that. So there's something else going on here that we're not really understand.