Understanding Movement Preparation Chapter 2. Perception Indirect Perception – Symbolic...
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Transcript of Understanding Movement Preparation Chapter 2. Perception Indirect Perception – Symbolic...
Understanding Movement Preparation
Chapter 2
Perception
Indirect Perception
– Symbolic representation
– Series of mental processes
– Comparison with existing memory stores
– Associated with information processing model.
Information Processing Model
Input – Perception - Decision Making – Execution - Output - Feedback
Perception Cont.
Direct Perception
– Affordances
Perception Action
Reaction Time (RT)
Interval of time between the moment that a stimulus is presented to when a response is initiated.
Indicative of the amount of time needed to prepare a response.
Influenced by several factors.
Number of Response Choices
Simple vs. choice RT
Hick’s Law
– Relationship between the number of movement choices and the time needed to prepare a response
– The higher the degree of uncertainty in a given situation, the longer the time needed to decide which response to make
Predicted Relationship Between Number of Stimulus-Response Choices and RT
Components of Response Time
Anticipation
Event anticipation
– Predicting what event will happen
Temporal anticipation
– Predicting when an event will happen
Precues
Cost/benefit tradeoff
Psychological Refractory Period (PRP)
Stimulus Response Compatibility
The extent to which a stimulus and its required response are naturally related
Attention
Bottleneck theory
Limited attentional capacity
Things to consider:
– Environmental and task complexity
– Skill level
– Number of cues
Selective attention
Attentional Focus
Arousal
Cue Utilization Hypothesis
