I and some others I've spoken to have the ability to see a plethora of random images or movies (and sometimes sounds or other sense-imagery) in our imaginations at will. These manifest when we relax our minds a little and will the images to come -- they might be connected or not, bizarre or not -- a lot like dreams, really. What is the scientific name for this phenomenon and how common is it?
posted by Malad on Jun 21, 2007 - 21 answers

How do I get terrible images and memories out of my head? [more inside]
posted by anonymous on Mar 28, 2007 - 30 answers

How do I improve my ability to form mental images? [more inside]
posted by philosophistry on Dec 25, 2006 - 16 answers

An am-I-alone-here-question: What does the calendar that you picture in your head look like? For as long as I can remember (or at least as long as I knew my months of the year), my mental calendar has always been monthly, and seemed to start with the month of August--maybe because I was born then, or maybe because the school year started around then. [more inside]
posted by printchick on Aug 27, 2006 - 79 answers