Happy birthday, Ivan Pavlov!
Pavlov was born on this day in 1849. Though Pavlov's research on classical conditioning has had a tremendous influence on the field of psychology, he was actually a physiologist, interested in studying digestion. His research is a great example of the importance of serendipity - fortunate accidents - in the advancement of science.
In honor of Pavlov's big day, I'm going to do something I don't do very often - share a video of myself. Several years ago, when I was still a grad student and adjunct faculty member at Loyola, I was invited by a colleague to submit an educational video for his YouTube series (which, sadly, didn't take off), in which I spoke about classical conditioning. Enjoy!