A Pluto.Studio app
Debias Spot your own cognitive biases · Android · Free

Positivity Effect

Older adults prefer positive information over negative information in memory and decision-making.

Not enough meaning Imagining the familiar as better

The positivity effect (also called Pollyanna principle in related contexts) refers to the tendency for people, especially older adults, to give more attention to and better remember positive stimuli than negative ones. Research by Laura Carstensen suggests this reflects a motivational shift: as people age and perceive their future time as limited, they prioritize emotionally meaningful and positive experiences.

Where it shows up

What it looks like in the wild.

Would you catch it?

Recognising a definition is not the same skill as spotting it.

Two scenarios from the app, with distractors drawn from the same family of biases — which is what makes them hard.

Scenario 1Which bias?

While watching the evening news, an older woman remembers a heartwarming story about a rescued dog but struggles to recall the details of a report on a local factory closing.

Scenario 2Which bias?

An older volunteer at a museum fondly describes the successful fundraising gala from two seasons ago, while rarely mentioning the poorly attended exhibit that followed.

100+ more scenarios for this bias alone. 18,869 across all 188 — plus a log of which biases are yours.
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Biases rarely arrive alone.

Understand more. Assume less.

188 biases, 18,869 scenarios, and a record of how you actually decide.

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