Understanding Your Emotions

This is an instructional video from Coronet films, explaining why people respond with different emotions to the same event.

The clip goes on to explain that we can be conditioned in various ways display emotions that may not naturally occur in a situation. Given that this was made in 1950, what information, if any, do you find to be outdated? What information has not changed? How can we be emotionally conditioned in every day life, as opposed to experiments?