Lecture 3.1 - Motor Learning Flashcards
What do product goals measure?
Measurements of accuracy, consistency, and dispersion.
Used to plot performance curves, NOT LEARNING CURVES, and see how well you did. Because learning….cannot be measured, but inferred… using retention/transfer tests.
Measures the end product.
What does motor learning lead to?
Permanent gain in the CAPABILITY for skilled performance
Ability vs capability
Ability is genetically predetermined and aids with skill acquisition
Capability is the reflection of the fact that a single performance may not reflect the actual skill level
What is brain plasticity or neural plasticity?
CNS alterations through practice/learning.
Not directly observable - we can’t view the brain material.
These alterations are inferred from observing changes in performance and then testing if the changes are permanent through retention/transfer tests
What are the improvements to each of the 3 stages of processing that occurs with neural plasticity?
Stimulus identification –> Get better at identifying stimuli and identify them more quickly (automacity), more time for the other stages
Response selection –> responses are much more appropriate and effective
Response programming –> Program programmed is improved
What are other improvements due to brain plasticity?
More effective GMPs and effector processes
More accurate/precise feedback
Establish more accurate reference models of correctness to aid in movement
Effector has motor program, spine, and muscles. Proprioceptive feedback
Initiates the movement by activating the output after the executive does its 3 stages of processing.
Measurement of learning
Process vs product goals
Process goals focus on the quality of movement production –> **Qualitative assessment: **how the movement is performed and the whole process in which it is performed and improved
Product goals focus on the end product/scores –> Quantitative assessment: measuring the outcome or final product, who cares about the process just how you got there
What are the 3 primary measures of learning?
Measurement of accuracy, measurement of consistency, and measurement of dispersion.
How does measurement of accuracy measure learning?
It assesses the constant (directional) error. The directional deviation from the target goal.
Uses formative and summative assessment.
**Formative assessment **occurs in the early stages and measures how an individual progresses.
**Summative assessment **occurs **later on **and shows how much an individual has learned by assessing their scores more closely.
Constant error is the mean of the trial scores, has a direction
T or F: With practice, transient effects on performance with decrease proportionately
True
T or F: Better recovery with reduce transient factors and performance will be more consistent
True
What error is measured when measuring consistency with motor learning?
Variable error - how inconsistent the scores were to the average or at producing the goal
How is dispersion measured?
With standard deviation
What are some limitations of performance curves?
- Performance curves plot performance bouts and not actual learning
- Plots average performance from each performance trial bout and not every individual one
- Due to only taking average of trials, may not accurately display the permanent capability of the skill
For general performance curves, it assumes everyone improves in a skill at the same rate – individual performance curves will vary a lot