Watch for
Your memory of a situation being rosier than contemporaneous notes suggest.
Memory & AttentionBias #76
Pollyanna Principle
We process pleasant information more accurately.
The tendency to process and recall pleasant positive information more accurately and rapidly than unpleasant information.
Why it matters: Named after the optimistic fictional character Pollyanna. Explains the general positivity bias in memory.
Try this
Actively record both positive and negative events as they happen for balanced perspective.
Real-world example
Remembering compliments more vividly than criticisms of equal intensity.
Key researchers
Margaret Matlin, David Stang
First described in 1978
Psychological mechanism
Mood-congruent processing. Positive information aligns with the brains default emotional state requiring less cognitive effort to encode. Negative information creates interference requiring additional processing.
Seminal research
Margaret W. Matlin and David J. Stang (1978), "The Pollyanna Principle: Selectivity in language memory and thought."
Related Biases
Debrief
Biases are not character flaws. They are recurring patterns in how minds compress uncertainty, save energy, and narrate reality. Once you recognise the pattern, you can slow the decision down, test the assumption, and make space for a better explanation.