The role of emotions in reasoning

For people in the UK, have a look at this clip from the excellent BBC series, The Brain: A Secret History, which looks at the history of experimental psychology and includes footage from some of the most famous psychological experiments of the last century. The latest episode was about emotions, and included this interesting footage of a man who had a part of his brain removed to get rid of a tumour, and who lost the ability to feel emotions as a result.