The thought or visuals of old people falling sends literal shivers down my spine. What's going on, psycho-bio-neuro-logically? What causes a physical reaction to an unpleasant idea? This seems deeply wired, is it "innate" in the brain?
posted on Jul 30, 2008 - 4 answers

Amateur neurologists, please read! What is going on in my head?? [more inside]
posted on Nov 17, 2007 - 19 answers

I become dull and emotionless for stretches of 3-5 hours at a time. I don't feel depressed, I just feel absolutely nothing. I can play my favorite, rock-out song and it feels the same as listening to CSPAN. I can kiss my girlfriend and I might as well be kissing my hand. It happens regularly, usually in the afternoon, but not every day. Sometimes coffee or food can snap me out of it, sometimes not. The difference between being in or out this "mode" is very distinct. When I'm not in the "mode", I experience a pretty full, normal range of emotions and I'm not what you'd call depressed at all. Have other people experienced this? Any ideas of what causes it or how I can beat it? I hate missing out on experiences while stuck in this zombie-land.
posted on Dec 18, 2006 - 17 answers

What experiments have been carried out where animals perform better than us at particular cognitive tasks? [more inside]
posted on May 9, 2006 - 13 answers

How do you get a doctor's attention? [more inside]
posted on Nov 29, 2005 - 45 answers