Aims and Context Gibson and Walk (1960)

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Describe the context of Gibson and Walk
Evolutionary psychology (nature/nurture debate)- "is depth perception innate or learned?"
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What do Nativists claim about depth perception?
Claimed depth perception was inborn, even though it only appears as the person matures (vital for survival at birth to prevent jumping off cliffs or stairs)
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What do Empiricists claim about depth perception?
Learned through experience
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Yerkes (1904) provides context for G+W describe his study
Compared aquatic and land turtles depth perception by placing them on an elevated platform above a net. Aquatic turtles worse- can't fall off in there natural habitat
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Lashley also provides context for G+W describe his study
Compared rats ability to jump across gaps when half was reared in the dark and half in the light. Found both could jump accurately (taught the dark rats to jump)- so innate like G+W suggested
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What were G+W aims?
1.)To find out whether depth perception is innate or learned. Believing that if it was innate it would appear when the infant can move 2.)investigate depth perception in both infant humans and animals to demonstrate that it was innate across species
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Card 2

Front

What do Nativists claim about depth perception?

Back

Claimed depth perception was inborn, even though it only appears as the person matures (vital for survival at birth to prevent jumping off cliffs or stairs)

Card 3

Front

What do Empiricists claim about depth perception?

Back

Preview of the front of card 3

Card 4

Front

Yerkes (1904) provides context for G+W describe his study

Back

Preview of the front of card 4

Card 5

Front

Lashley also provides context for G+W describe his study

Back

Preview of the front of card 5
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