Lesson 20 - Limitations on performance Flashcards
Take home message
Many factors influence how arousal and attention impact motor performance
Attention, Low and High Demand
Attention is a limited cognitive resource or pool or resources that is available and can be used for different tasks or purpose
Low demand: When the attentional
demands of a task are low, performing a secondary task may not detract from
performance (Good secondary performance)
High demand: When the attentional
demands of a task are high, performance of a secondary task likely has a negative impact on both tasks (Bad secondary performance)
3 Stages of Information processing
Stimulus Identification: What information is available and is most relevant?
Response Selection: What options are available?
Response Programming: Planning and generating the chosen response
Stimulus Identification
* Parallel Processing of Sensory Information
The ability to process two streams of sensory information simultaneously
Ex: Auditory and Visual cue
Easy to do auditory and visual because different parts of brain
-same part of brain = conflicting
Different streams of sensory information can be often be processed simultaneously and independently
-Unless affected by nervous system
Challenges in parallel processing
When there is interference or competition in stimulus identification
and response selection
ex: the colour red red but the word is blue
-Figure out which stimulus is more important
Response selection
- Controlled vs automatic processing
Controlled:
-Slow
-Deliberate
-Consciously aware
-High attention demand
-“Novices”
Automatic:
-Fast
-Smooth
-Unconscious performance
-Low attention demand
-“Experts”
-Lower attentional demand
Practice can help automatize motor skills performance and free attentional resources for motor decisions.
Pressure can reduce the availability of attentional resources for motor decisions and lead to controlled processing
Response programming
- Spatially and Temporally-incompatible movement
Ex: Drumming requires the limbs to perform independent actions while maintaining different rhythms
Patting Head, rubbing tummy
Choking under pressure
There is a link between ‘choking’, the level of arousal and/or the pressure of competition
Arousal
The level of excitement produced under stress
Arousal is a key determinate of performance in tasks where the speed or accuracy of motor decisions is important
Individual Zone of Optimal Functioning (IZOF): The range of arousal levels associated with a persons maximum performance
How arousal affects performance
Optimal relationship for each person where there they play there best at a certain amount of arousal
Depends on person
Typically, when arousal is low, performance is better in complex
cognitive tasks with high precision demands and vice versa