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MENTAL MODEL · M11829

Exemplar Theory

Exemplar Theory
Learn & MetacognitionHigh supportCognitive Psychology
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Version 1.0.0 · Updated 2026-07-28

CORE DEFINITION

Exemplar theory is a proposal concerning the way humans categorize objects and ideas in psychology. It argues that individuals make category judgments by comparing new stimuli with instances already stored in memory. The instance stored in memory is the "exemplar". The new stimulus is assigned to a category based on the greatest number of similarities it holds with exemplars in that category.

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Exemplar theory is a proposal concerning the way humans categorize objects and ideas in psychology. It argues that individuals make category judgments by comparing new stimuli with instances already stored in memory. The instance stored in memory is the "exemplar". The new stimulus is assigned to a category based on the greatest number of similarities it holds with exemplars in that category.

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Exemplar theory posits that concepts are not stored as abstract prototypes but as collections of specific examples in memory. New stimuli are categorized by comparing their similarity to these stored exemplars. The mechanism is instance-based reasoning: categorization depends on overall similarity to known examples, rather than satisfying abstract rules.

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Source support: Explicit

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    en.wikipedia.orghttps://en.wikipedia.org/wiki/Exemplar_theoryZH · Explicit
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