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Attention
Concentration of mental activity that allows limited portion to a lot of infomation to sensory and memory
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Divided Attention Task
Two or more thing and accuracy may decrease
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Selective-Attention Task
Pay attention to certain information but not others
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Dichotic Listening
Listen to one message in one ear, but register another, but still listening to the first one
Shadow-repeat message heard
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Working Memory
Immediate memory for info currently processing
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Stroop Effect
People take a long time name the ink color when it is being printed with a incongrent word
Yellow
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The Isolated-Feature/Combined-Feature Effect
If the target is different from irrelevent items in the display one can quickly identify it
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The Feature-Present/Feature-absent effect
Search is rapid when looking for a particular feature that is present
"Pop Out"
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Saccadic Eye Movement
Ability to bring retina to position over words to read
Fovea- Small central region in retina
Regression- To move backward to earlier material in sentence
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Fixation
Visual system pauses for 50 to 500 milli seconds to get info that is useful from reading
Perceptual span- number of letters and spaces percieved in a fixation
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Alerting Attention Network
Making one sensitive to new stimuli and keep on alert for a long periods
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Orienting Attention Network
Attention for visual search and shift attention to various spatial locations
Active in Parietal lobe of right hemisphere- trouble with visual search on the left side
Increased blood flow to parietal cortex-result from doing a PET scan
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Unilateral Neglect
Spatial deficit for one half of visual field
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Executive Attention Network
When a task features conflict
Top-Down Process
Ex- state use of each noun in a list
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Bottleneck Theory
Early theory that stats one limits the quantity of infomation to which one can pay attention to
Too simple
Infomation is lost thru many steps
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Feature-Intergration Theory
Distributed Attention- Allows one to register all features automatically
Focused Attention- One object at a time- ex. Which shape goes with which color
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Illusory Conjunction
Inapproiate combination of features, combining a shape with a nearby color
Ex. Distributed attention
N/T
Dax/Kay- Day
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Binding Problem
Example- Red apple, red color/round shape
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Consciouness
Awareness that people have about the outside word and their perceptions, image,thoughts,memories and feelings
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Ironic Effects of Mental Control
Efforts that backfire when attempt to control the contents of our consciousness does not work
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Blindsight
A unusual kind of vision without awareness
Most info is registered on the retina and travels to visual cortex/ however portion goes to other locations on the cerebral cortex, outside the visual cortex
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