Response Selection Flashcards
Explain the stages of info processing diagram
Stimulus identification
Response selection, past experience ltm
(Both pre motor)
Motor time:
Response programming
Movement time:
Response execution
According to response selection, how is an appropriate response chosen
Based on interpreted environmental stimuli, responses stored in ltm in form of motor programmes
Link decision making to Donders reaction time
Reaction time increases when we have choice
The more stimulus- response options, the longer it takes to respond
Explain stimulus response alternatives
As we increase the number of S-R alternatives I.e from simple reaction time to choice reaction time, reaction time increases
More options = longer time
NOT A LINEAR RELATIONSHIP
as add a SR, only increases a small amount each time
Very steap from simple RT to one choice
What is Hicks law
Based on making the curved line into a straight line in stimulus response alternatives
Apply log2(N)
2 to the power of x, x is the number you then plot to get a straight line
Based on y = mx+c (straight line equation)
M = gradient, how steep the line is
C = where the line crosses the axis
Explain your=mx+c
Y = reaction time
M = gradient of the line
X = log2 of SR alternatives
C = y axis intercept
Also:
C = simple reaction time
M = increase in RT when S-R doubles
Each time we double the number of SR responses, fixed increase in reaction time
How can chunking explain processing
When we double number of SR responses, increase processing by 1 chunk, e.g have to ask one more question
= one part on linear response, gradient on curve
What are the exceptions to the rule
Familiarity with the task
(Prior knowledge)
Stimuli and response
(Compatibility)
What is response compatibility
When the presentation of the stimulus matches the pattern of the response
E.g on left of screen and left of keyboard
Incompatibility = switched over, more difficult, more processing
Can be reversed with crossed arms
Explain hands crossing and compatibility
Compatible always faster
But faster in incompatible than when hands uncrossed
Explain anticipation
Tries to avoid the response selection stage
Look to info prior to presentation of stimulus so can select in advance
Advanced athletes can look for advanced cues
What is using prior information referred to?
Advanced cue utilisation
Allow athletes to make accurate predictions based on contextual info available early on
What are the two types of anticipation
Spatial
Temporal
Explain spatial anticipation
Identify sequence of events
Bypass response selection
Early cues
Explain temporal arousla
Predict when stimulus will arrive
Effected by fore period
Arousal
What are the methods of studying advanced cue utilisation
Occlusions, temporal and spatial (identify when/what pots look at)
Reaction time paradigm
Explain badminton trials temporal occlusions
Abernathy and russel
When occluded early before impact, novices and expert equals bad
Then closer to impact, see improvement and gap
