Please enable JavaScript.
Coggle requires JavaScript to display documents.
Categorization Study : Approaches (The Prototype Approach (A…
Categorization Study : Approaches
The Exemplar Approach
every instance of a category stored
in memory
Existent members of a category that we have encountered
in the past that have enabled us to function in the world
Objects similar to majority of exemplars are classified faster
The Feature Approach
Form categories by specifying characteristics (features) of a category that are both necessary and sufficient for membership in that category.
If an entity possesses them, it qualifies as a member
of the category
The Prototype Approach
A representation formed of ‘average’ values for the
features characterizing the entity
A version of an entity perceived as an ‘average’ (norm, typical)
The best or most representative member of a category
Store a prototypical representation of a concept
Compare new objects with prototypes represented in the mind
Assign to category it most resembles (approximation)
Categories : Experimental Evidence
Categorization based on free sorting (not based
on family resemblance principle)
When people confront the world, they face two (2)
sorts of categories
The ones already constructed (employed by culture,
experiences)
The ones they must construct for themselves both early in
their development and later on
Category Loss?
Difficulty in recognizing and describing
something (i.e. animate or inanimate) which used to be recognizable and describable
Due to injury to a particular part of the brain
resulting in loss of categorization ability
AGNOSIA- can perceive objects within the category they have lost but
can’t identify them
PROSOPAGNOSIA- loss of ability to categorize or
recognize faces