Duration Neglect
We largely ignore the duration of an experience when evaluating it in memory.
Duration neglect is a cognitive bias that occurs when the duration of an experience has little or no effect on how the experience is remembered. This is a component of the peak-end rule. An hour of mild pain and an hour of intense pain followed by mild pain are not remembered proportionally to their true discomfort totals. The medical and UX implications are significant: extending a positive ending can improve how an entire experience is remembered.
What it looks like in the wild.
- Everyday life Colonoscopy Comfort Patients who received a less comfortable but longer procedure with a gentler end phase reported higher satisfaction than patients with a shorter but more intense procedure.
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.
After a long negotiation, they felt it went well because the final agreement was favorable, even though the talks were bitter and stalled for weeks.
Rachel loved the concert because the encore was fantastic, not remembering she was stuck in traffic for two hours to get there.
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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