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Illusion Definition
An instance of a wrong or misinterpreted
perception of a sensory experience:
stripes embellish the surface to create
the illusion of various wood-grain
textures.…read more

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Segall, Campbell and
Herskovits (1966)
Segall, Campbell and Herskovits put forward `The Carpentered-World
hypothesis' to account for cultural differences in the Muller-Lyer illusion.
For example, Zulus, who migrate to urban cities for work are found to be
much more easily fooled by the illusion. Thus proving that it isn't a
genetic factor that effects the interpretation of the illusion but it is
decided by our past experiences and therefore the assumptions we
make.
Segall (1994) went further and compared two local tribes in Southern
Africa, one group living in circular huts and one group living in
rectangular huts. The test showed similar results as their original study
with the group that were exposed to angles being much more
susceptible to the illusion.…read more

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Allport and Pettigrew
(1957)
Allport and Pettigrew presented
people of different cultures and
experiences with rotating
trapezoid
They found that it was more likely to be seen as a
swaying rectangle by people belonging to western
cultures and urban Zulus, however it is most likely to be
interpreted as its true form by non-urban Zulus.
This is thought to be because people from urban
environments would relate the illusion to objects such
as windows etc. where as tribal Zulus would not have
experienced them.…read more

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Hudson (1960)
Hudson investigated the
influence of culture on depth
perception, using Bantu and
European children. These children
were shown the picture above.
Hudson found that the European children were able to
interpret the depth cues ( e.g. relative size, overlap and
linear perspective) and the Bantu children often thought
that the drawing was two dimensional therefore
thinking that the man was aiming at the elephant.…read more

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Deregowski (1972)
The split drawing (left) was generally preferred by
African children and adults to the perspective drawing (right). One
person, however, did not like the split drawing because he
thought the elephant was jumping around in a dangerous
manner.
Deregowski's major findings are that many non-Western tribal lack
pictorial depth perception and that many non-Western tribal
people prefer split drawings to perspective drawings
Deregowski in attempting to account for cultural differences in
perception of pictorial depth, believes that non-Western tribal
people lack the ability to perceive and integrate depth cues in
pictures. Deregowski believes this inability is due to some form of
learning or lack of learning.…read more

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Comments

MrsMacLean

A really interesting document! Thank you.

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