3. Categorization

Question 1

Traditional category view

Answer 1

Necessary sufficient definitional features
good to cobmine concepts, but bad psychologically
Typicality effects disprove this
maybe family resemblance/prototype/exemplar

Question 2

Creating categories distirbution

Answer 2

Infants form categories based on perceptual distributions
prefer extremes for broad categories, prefer middles for narrow cats

Question 3

How define categories

Answer 3

Shift from featural to definitional (whale fish to mammal)
NOT AGE DEVO TIMED, BASED ON LEARNING
Not a single point for shifts across categories, within category all at one time though
Means its learning based

Question 4

What features used

Answer 4

Shape mostly to identify membership
Depends on domain
Natural kinds different from artifact (no associations across, but within)
Function too (plausibility of design)
Creator’s intention (accidental/intentional newspaper hat)
Look longer if category of object hidden changes (diff thing!)