Attention and Selection

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  • Created by: jmichel
  • Created on: 12-05-16 14:54
What is attention?
process to focus on a particular stimulus while disregarding another stimulus
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Why do we need attention?
capacity problem; controlling perception
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pop-out search
target & distractors max. different - quick reaction times/correct responses
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conjunction search
target & distractors similar in more then one visual property - slow, error prone
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neglect (concept)
falliere to attend one side of space; damage of partial areas; tested by line bisection; internal representation also impaired
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Why neglect?
right hemisphere lesion leaves intact left hemisphere = severe neglect of left space
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controlled attention processing
top-down; slow; effort full; error prone
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automatic attention processing
bottom-up; effortless; fast; outside of awareness
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Selective attention
selecting certain stimuli to pay attention to
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sustained attention
paying attention for a long period of time
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Divided attention
Focus is on multiple tasks and ideas at once; all but one task must be automatic
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stroop effect
Demonstration of inference in the reaction time of a task
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bottom-up attention
sudden change in attention; brain decides whether to keep focus or not
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Posner et al. (1984) stages:
disengage, shifting, engaged
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disengaging stage
take attention away from where currently focussing
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shifting stage
attention change occurs from one stimuli to another
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engaged stage
focus on new target
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Other cards in this set

Card 2

Front

capacity problem; controlling perception

Back

Why do we need attention?

Card 3

Front

target & distractors max. different - quick reaction times/correct responses

Back

Preview of the back of card 3

Card 4

Front

target & distractors similar in more then one visual property - slow, error prone

Back

Preview of the back of card 4

Card 5

Front

falliere to attend one side of space; damage of partial areas; tested by line bisection; internal representation also impaired

Back

Preview of the back of card 5
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