PSYCH 1X03 Lecture Notes - Lecture 5: Windsor Chair, Central Tendency, Psych
8 Sep 2016
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Ability to form categories and concepts allows ef cient navigation through the world. Basic: most abstract level at which objects have similar shapes i. e. chair. Subordinate: more precise or accurate i. e. windsor chair. Bad guys superordinate level: higher chance for accuracy-low predictive power. Snowtroopers subordinate level: lower chance for accuracy-high predictive power. Concept: a concept is represented by a prototypical item which has central tendency, i. e. average exemplar and comparison to each new example, a new exemplar is classi ed by its similarity to the prototype. Typicality effect shows a graded structure to classi cation. Prototypes can be directly formed through instruction or indirectly through inductive learning. Prototypes are often easy to classify and remember even if the prototypes is never seen during learning some prototypes don"t even exist: single experience will be stored as an exemplar (latest, prototypes need several years/experiences to be developed. Categorization inclusion as old depends on pattern type.
