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Lecture 9

HKIN 215 Lecture Notes - Lecture 9: Feature Integration Theory, Peripheral Vision, Visual Search

2 Pages
66 Views
Fall 2017

Department
Human Kinetics
Course Code
HKIN 215
Professor
Dr. Melanie Lam
Lecture
9

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wCh. 9 attention
- Limited capacity for processing information
Filter or bottleneck theory
- Neck limits how much info can be passed through
- Info processed serially
o One process completed before next process starts
Central-resource capacity theories
- Kahneman’s attention theory
o Cognitive/mental effort
o Flexible in terms of allocation
o Attention fluctuates based on arousal
Multiple resource theories
- Several sources of attention
- Wickens (1980, 1992)
o Multiple pools of attention (boxes)
o Ability to multitask depends on resource competition within and between multiple sources
Procedures for assessing attention demands
- Dual task procedures
o Does the secondary task exhaust a portion of the attention resource pool used for the primary
task?
o Different instructions shift attention and performance shifts
Focusing attention
- Attentional focus (beam of light)
o Can’t focus on other objects with the same intensity
o 2 dimensions
Width
Number of elements a person if focusing on at a given moment
Broad to narrow
Direction of focus
Internal or external
Focusing attention on movement or movement effects
- Different way to use internal focus and external focus
o Internal: attention on body
o External: attention on outcome/effect of movement
- Action effect hypothesis
o Whether the learner should have focused directed internally or externally
o This hypothesis favors external focus
- Constrained action hypothesis
o Adopts an internal focus: Focusing on body movement creates conscious intervening of
processes that regulate body movement
o Adopt external focus: Promotes automatic type of control
o Gives you a reason why one is better than the other

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Description
wCh. 9 attention Limited capacity for processing information Filter or bottleneck theory Neck limits how much info can be passed through Info processed serially o One process completed before next process starts Centralresource capacity theories Kahnemans attention theory o Cognitivemental effort o Flexible in terms of allocation o Attention fluctuates based on arousal Multiple resource theories Several sources of attention Wickens (1980, 1992) o Multiple pools of attention (boxes) o Ability to multitask depends on resource competition within and between multiple sources Procedures for assessing attention demands Dual task procedures o Does the secondary task exhaust a portion of the attention resource pool used for the primary task? o Different instructions shift attention and performance shifts Focusing attention Attentional focus (beam of light) o Cant focus on other objects with the same intensity o 2 dimensions Width Number of elements a person if focusing on at a given moment Broad to narrow Direction of focus Internal or external Focusing attention on movement or movement effects Different way to use internal focus and external focus o Internal: attention on body o External: attention on outcomeeffect of movement Action effect hypothesis o Whether the learner should have focused directed internally or externally o This hypothesis favors external focus Constrained action hypothesis o Adopts an internal focus: Focusing on body movement creates conscious intervening of processes that regulate body movement o Adopt external focus: Promotes automatic type of control o Gives you a reason why one is better than the other
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