Perception revision booklet

Perception revision booklet which includes:

- Key studies 

- Evaluation points

- Theories 

- Explanations

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  • Created by: Lara.cv
  • Created on: 17-05-16 16:44
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PERCEPTION
Theories
Gregory's top down
Gibsons bottom up
Bruce and Young's face recognition
Perceptual development
Infant studies
Cross cultural studies
Depth Perception
Visual constancies
Prosopagnosia

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Gre
g
is a ory beli
p e
His rocess ved tha
th o t
use eory st f const percep
h a ru tion
Top down theory sens igher c tes tha ction
o o t
app ry info gnitive we nee
Gregory's theory ropr r i d
iatel mation nterpre to
y t
· Because the sensory input is often ambiguous
or incomplete, past experiences and knowledge influence
our perception
· Top down theory suggests that perception is indirect, as it relies on…read more

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Re ort EVALUATION
s u p p
PALMER
- participants were shown contextual scenes (e.g. a
kitchen) and then shown either an appropriate object, a
similar object or a different object
-When shown a mailbox participants frequently
reported seeing a loaf of bread.…read more

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Gibson's bottom up theory
Gibsons bottom up theory suggests that perception is innate.…read more

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EVALUATION
Research evidence = Gibson
and Walk
- tested perception on 36, 6 month old infants
- found that babies had a false sense of perception
HOWEVER ...…read more

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PERCEPTUAL DEVELOPMENT
Depth Perception Visual constancy
- Gibson + Walk - Bower
Infant
studies - Bower - Slater et al
Cross- - Hudson - Segall
cultural - Turnbull (Kenge) - Allport + Pettigrew
studies
Infant study 1 = Gibson and walk
AIM: to investigate whether depth perception is innate or learned
PROCEDURE:
1.…read more

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EVALUATION
Gibson and Walk's research has extremely good face validity, as it provides evidence that the
perception of depth and distance is indeed innate
Certainty of perception is difficult in babies because they cannot tell
us what they see, so the experimenter may therefore infer the results
which leads to experimenter bias
Culturally bias - participants were all American so cultural factors may
have influences the results therefore the results lack population
validity
The sample size of this study is too small for the results…read more

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Cross cultural study 1 - Hudson
Aim: To study the influence of culture on depth perception
Procedure: Used Bantu,European and Indian children
- Children shown a set of drawings, each with an
antelope, an elephant and a man with a spear.…read more

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EVALUATION
Nature VS Nurture
- Gibson's theory is un-applicable as he agues that perception is innate
- Gregory's theory is ideal, since the environment has evidently caused the difference in
perception
Its been found that pigmentations of the retina varies between skin colours, leading to difficulties in perceiving
objects and edges - Berry (1971)
= links back to culture because high pigmentation in African people may explain why they are less likely to `see'
certain visual illusions - cultural differences may be due to nature…read more

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Bruce and Young's Theory of face recognition…read more

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