Of all the things I've learned this semester, I do believe that one of the things that I will remember in 5 years is Little Albert and classical conditioning.
Classical conditioning is a form of learning discovered by Ivan Pavlov. It contains a conditioned stimulus, unconditioned stimulus, conditioned response and unconditioned response. Basically in Pavlov's study, he learned that salivating is a unconditioned response, but that salivating to food was a conditioned response. The dogs that he did the study on began salivating when he produced a metronome, which had become a conditioned stimulus, because food was given right after it. Prior to the food being given, it was merely an unconditioned stimulus.
The Little Albert experiment was an experiment performed by John B. Watson. Watson used classical conditioning to make Little Albert fear bunnies. Little Albert soon began to fear anything that resembled bunnies, even Santa Clause.
I know for a fact that I'm going to remember Little Albert and classical conditioning 5 years, even if I refer to Little Albert as Little Alfred, or Little Alvin. When the class first learned about Little Albert, I was seriously horrified that someone would do this to a poor, helpless child. I often wonder whatever happened to him (apparently no one knows) and if he ever got over his fear of bunnies and things that resembled them.
The entire concept of classical conditioning was really a hard one to grasp and I still sometimes feel as though I don't understand it. However, it really stuck out to me because it's really interesting, just like all of psychology.