2. Presentation
Define the topic
Brief background
Previous research
Findings
Conclusion
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3. Main Research
Dr. Gabriele Wulf
Schmidt & Wrisberg
Stephan Swinnen
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4. Background & Definition
Large amount of interest since 20th
century
Critical for learning motor skills
Definition
Information produced from the various
sensors within the body (Schmidt)
Knowledge of results of any behaviour
considered as influencing further behaviour
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5. Feedback – Overview
Internal Feedback
Feedback from the sensory cortex
○ Eg. sight or kinesthesis
External Feedback
Augmented information
External to the sensory cortex of the
performer
Adds to the intrinsic information
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6. Knowledge
of Results
(KR)
•Extrinsic
•Augmented
•Success of movement with
respect to the goal
•Can be redundant
Former Collingwood Coach Mick Malthouse addressing his players at
3qtr time of grand final.1 2011
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7. Knowledge
of
Performanc
e (KP)
•Extrinsic
•Augmented
•Assesses quality of
movement rather than result
•Supplements the
A picture of dartfish software assessing a countermovement jump
knowledge of the performer
•Kinematic feedback
• v, t, a, etc.
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8. Feedback and Learning
literature
Thorndike’s line drawing test
1931 (foundation research)
Participants who did not receive feedback
did not improve post test
Established mind set for further research
Thorndike’s study still confirmed
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9. Modern Research
Place greater emphasis on extrinsic
feedback than previously
Encourage learner to improve personal
error detection abilities
Prevent learner dependency on
feedback
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10. No Feedback - Evidence
Mostly nonhuman subjects (birds)
Bird songs specific to species
Birds raised in captivity
Motor learning independent of feedback
Limited studies on human subjects
Gymnasts
Great amount of redundant feedback
Frustrating to receive redundant feedback
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11. Research by Dr. Wulf (2007)
Motivation linked to feedback when performer has
achieved positive results
Examined effects of feedback on motivation
Found that learners responded to feedback post
positive results achieved
Motivation is a function of feedback
AIS high performance track cycling coach speaks to Anna
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12. Motivation and Feedback
Goal setting enhanced motivation
Coaches and teachers must encourage
goal achievement through feedback
Learners try harder, are happier and
practice for longer
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13. Reinforcement
Positive reinforcement
Response to increase likelihood
of repeated movement
Negative reinforcement
Response to remove aversive
condition to increase likelihood
of repeated movement
Long time Russian national women’s volleyball coach Nikolai Karpol
employing negative reinforcement to improve performance
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14. Weinberg et. al
Reinforcement
Quantify positive reinforcement effect on
endurance performance
Hypothesised that positive reinforcement
increase endurance performance
Results indicated no significant difference in
either study
Positive reinforcement has not effect on
endurance performance
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15. Reinforcement Literature
Limited literature surrounding
reinforcement
Poses difficult experimental design problems
Researchers failed to sample groups to
expose correct experimental behaviours
Nil feedback, all positive or all negative
proved to challenging to implicate in studies
Experiments lacked internal validity
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16. Intermittent Reinforcement
Reinforcement only provided occasionally
Improves athletes error detection
Improves self motivation and reinforcement
Great reinforcement effects once reinforcement
has been removed
Overexposure if reinforcement occurs after every
trial
Rugby League coach Wayne Bennet speaks
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17. Practical Applications
Utilise intermittent reinforcement
and feedback
Use intrinsic feedback of the
athlete
Prompt discussion
Use questions
Develop athletes error correction
Do not overexpose performers
to feedback (loses effect)
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19. Future Research
Research ‘real-world’ sporting context
Study outside of lab
Create experiments that employ more
externally valid concepts
Greater research on intrinsic feedback
rather than extrinsic
Study more effective extrinsic feedback
specific to the individual’s needs
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20. The End – Thank you
Please feel free to visit the wikiversity page
for Sport Coaching Pedagogy
http://en.wikiversity.org/wiki/SportCoachingPedago
gy
or visit my blog
http://paulfellowsspc12.blogspot.com.au/2012/02/s
port-coaching-pedagogy-2012.html
Or Follow me on Twitter
www.twitter.com/pfellows12 (#SCP12)
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21. References
Badami, R., VaezMousavi, M., Wulf, G., & Namazizadeh, M. (2007). Feedback
after good trials enhances intrinsic motivation. Research Quarterly for Exercise
and Sport.
Schimdt, R., and Wrisberg, C., (2008) Motor Learning and Performance Human
Kinetics 286-299
Schmidt , R., Zelaznik, H., Hawkins, B., and Spring (1980) Feedback influences
on reaction time Journal of Motor Behaviour 12:239-261
Swinnen, S., and Zelaznik, H., (2002) Information Feedbck for Motor Skill
Learning: A Review Advances in Motor Learning and Control 3:37-42
Weinberg, R., Garland, H., Bruya, I., and Jackson, A., (1993) Effect of Positive
Reinforcement on Endurance Performance Journal of Sport and Exercise
Psychology 12:141-156
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