ML 3 (practice conditions and augmented feedback) Flashcards
When it comes to training volume, is more better?
nah m8,
after a certain amount of practice, retention benefit no longer increases, and possibly decreases
What is overlearning?
the continuation of practice beyond the amount needed to reach a performance criterion
point of diminishing return
What are two ways of practice distribution?
Massed practice
Distributed practice
What is massed practice?
the amount of rest between trials/sessions is short
What is distributed practice?
the amount of rest between trials/sessions is long
Which method is more effective given a certain amount of time, massed or distributed practice?
distributed gave better overall outcome and retention in a golf putting scenario.
- (Dail & Christina, 2004)
Which method (massed vs distributed) is more effective for
a) immediate retention
b) delayed retention
???
a) massed
b) distributed
- (Panchuk et al, 2013)
How do complexity and difficulty differ?
complexity = no. of elements to the skill and/or degree of info processing and attentional demands difficulty = speed and space used during the skill
How does more elements lead to greater complexity of skill?
more elements = greater information processing and attentional demand
Outline the 4 strategies to practice parts of a skill
fractionisation: one part at a time before whole skill
segmentation: a, a+b, a+b+c etc.
simplification: reducing object difficult, attentional demands, speed etc.
focus on part while practicing whole
In what scenario may segmentation skill practice be appropriate?
when there is large coordination between elements of the skill
Outline the feedback control process if the task if dart throwing w/ emphasis on technique
> optimal situation : perfect technique
controlled system : muscular and dart, body throws the dart
outcome: patterning of the throw
receptors : mechanoreceptors , listening to a external feedback or technique via EMG, kinematics etc.
error transform : system will attempt to correct next throw based on the difference between the ideal and the outcome
Outline the feedback control process if the task if dart throwing w/ emphasis on hitting the bullseye
> optimal situation : hitting the bullseye
controlled system : muscular and dart, body throws the dart
outcome: where the dart lands
receptors : visual (score)
error transform : system will attempt to correct next throw based on the difference between the ideal and the outcome (e.g. if your throw was a double 20, intention for next throw is the exert less force or alter the trajectory of the throw)
What is augmented feedback?
enhanced feedback that the sensory system cannot provide
What are the two types of augmented feedback?
Knowledge of Results (KoR)
Knowledge of Performance (KoP)
Describe Knowledge of Results and give examples
externally presented information about the outcome performance
- error
- score
- yes/no
Describe Knowledge of Performance and give examples
externally presented information about the movement characteristics that determined the performance outcome
- timing
- joint angle pattern
- overall technique
What is the role of augmented feedback?
to facilitate and motivate
When is augmented feedback necessary?
> if sensory feedback is not available (e.g. blind golf)
> sensory feedback is available but the performer lacks to capability to evaluate (e.g.inexperienced)
What are some examples of when augmented feedback may help high level performers?
> trying to move a barbell as quickly as possible or to a target speed
multi-limb coordination is important
When is augmented feedback detrimental to learning?
> feedback is wrong or misguided
learner becomes dependent on feedback
beginners rely on augmented feedback, whether correct or not…
- (Ford et al, 2007)
What information may feedback contain?
> error (what is wrong)
> reference (what is correct performance)
In what situations are error and reference feedback best suited?
error for better performance
reference for motivation
In what scenarios may KoR be used for feedback?
- to confirm own assessment
- when outcome is not available
- for motivation
- when fostering discovery learning (problem solving)
- to focus on effects (external focus)