TEDxCanberra

TEDxCanberra is one of the independently organised TEDx events held under licence from TED. One talk from 2010 is recorded here: Cognitive dissonance by Ash Donaldson.

Cognitive dissonance is the discomfort people feel when they hold two conflicting beliefs, or when their actions don’t match their beliefs, and the ways they try to reduce it, often by changing an attitude or justifying a choice. The talk is filed under cognitive psychology and persuasive design. The UI-Patterns.com library covers the idea in its cognitive dissonance pattern.