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Illusion - Is Seeing Really Believing?
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Illusion - Is Seeing Really Believing (1998)(Marshall Media)[Mac-PC].iso
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1997-02-04
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The Role of Attention in
Perception
In a now classic study initiated
by E. Colin Cherry at the
University of London and MIT,
two verbal messages were
simultaneously "fed" to a
subject, each through a
separate earphone. The analogy
was to the situation in a
cocktail party where we are
confronted by several
simultaneous streams of
conversation but can only
attend to one. In the
experiment, the subject had to
do so by repeating one message
aloud as it was heard. The
subject was then tested for
recall of both messages. The
message the subject repeated
aloud was well recalled, but
little of the unattended one was
recalled. Subsequent research
using this method established
that very little of the
unattended message is
perceived. Based on this
experimental paradigm the late
Donald Broadbent at Oxford and
Anne Treisman, now at
Princeton University,
developed theories of
perception in relation to the
role of attention that have not
only been very influential, but
have played a major role in the
emergence of Cognitive
Psychology, the contemporary
approach now dominating the
field.