Neuroscience is seen as a biological science. Psych as a social science.
Many many schools will probably let you fudge neuroscience as a social science, especially if you get a more psychy one. In my experience most of the schools are willing to bend a little if you don't have the requirements as long as you have something close.
However, rarely will you see a requirement of more than a semester (I think I saw one two semester requirement) for social sciences. Sometimes they have a separate humanities requirement which probably won't fly for psych. If you are talking just about liking to see social sciences, rather than requirements, you'll want more psych than neuroscience classes. They won't look at someone with a neuro minor as someone who has social sciences at all, they just might let you bend it for a req.