Adapting Discrete Movements Flashcards
Lecture 24/25
Motor learning
-practice or experiences that causes relatively permanent gains
Factors that impact performance (big picture)
-practice
-strength
-health
-balance/agility
Factors that impact performance (intrinsic)
1) physical fatigue (intensive practice)
2) arousal (inattention/central fatigue)
3) motivation
Law of Practice
-rapidly learning at first, then gradual later (diminishing returns)
-power/exponential decay curves
Motor learning
-processes of improving performance in a motor skill
= skill aquisition
Motor adaptation
-process of modifying a skill for different conditions/equipment
Visuomotor adaptation: size of errors in movement is proportional to…
-the size of the rotation
Visuomotor adaptation
-changes in planned reach path using errors experienced in previous trials
cerebellum
-learning from movement errors and adapting properties
Adaption of patient w/ cerebellar damage
-no learning curve
-similarly scattered data
-don’t learn
Washout of patient w/ cerebellar damage
-very similar to baseline
-no initial spike in error (no learning)
In a visuomotor adaptation the error should be in the same/opposite direction as the adaptation (prism angle phase)
opposite
In a bird w/ goggles will audition adapt to follow vision?
Yes, then will similarly readjust during the washout
The “Gold Standard of Observational Learning”
= facilitation
-observe someone perform task (correct), then perform task
Which is worse- no previous observation? or incorrect observation?
-Incorrect observing
= interference
