This is Library Ghost erasure. (That scene scared the crap out of me as a kid, and I had to prep myself for it each time I watched the movie.)In the original there's really only perhaps one scene that really scared me, that being Dana in the recliner and the hands popping out and dragging her to the fridge.
I'm with the people in here on GB2: it's a clearly weaker movie, but I still have such a soft spot for it. It's not a ghost-related scene, but my favorite bit is The World Of The Psychic. That and some of Egon's throwaway lines in the movie are the times when the humor reaches the level of the first movie.