ML Final Flashcards

1
Q

•define transfer of learning as it applies to motor learning

A

• Influence of previous experience on:

  • Performing the same skill in a new context
  • Learning a new skill

• This influence can result in the following:

  • Positive transfer
  • Negative transfer
  • Zero transfer
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2
Q

• define positive transfer

A

Positive Transfer •

-When previous experience facilitates performance of the same skill in a new context or the learning of a new skill

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3
Q

• define negative transfer

A

Negative Transfer •
- When previous experience hinders or interferes with the performance of the same skill in a new context or the learning of a new skill

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4
Q

• define zero transfer

A

Zero Transfer •
When previous experience has no influence on the performance of the same skill in a new context or the learning of a new skill

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5
Q

• identify 2 reasons why positive transfer occurs

A
  1. Similarity between the component parts of two skills or two performance contexts
    • The more traditional view of why positive transfer occurs
    • More similar the component parts, greater likelihood of positive transfer
    • A theory to explain this transfer effect:
    • Identical elements theory (Thorndike, 1914)
  2. Similarity between the cognitive processes required of two skills or two performance contexts
    • A theory to explain this transfer effect:
    • Transfer-appropriate processing theory (Brandsford et al., 1979)
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6
Q

• describe identical elements theory and transfer appropriate processing theory

A

Identical Elements Theory
• What are ‘elements’?
• General characteristics of a skill or performance context (e.g., purpose of the skill) OR
• Specific characteristics of the skill (e.g., components of the skill being performed) AND
• Mental processes that share the same brain cell activity as the physical action

Transfer-Appropriate Processing Theory
• Similarity in cognitive processing elements
– Similar processing activities
• Argue that similarity in component parts can only explain some of the positive transfer effects

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7
Q

• describe 2 situations in which negative transfer arises***

A
  1. Change in spatial location of movement

2. Change in the timing structure of movement

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8
Q

• identify 3 reasons why negative transfer occurs

A
  1. Memory representation
    • Develop as a result of learning a skill
    • Practice in one specific way
    • Create a representation for perceptual characteristics of the task and an appropriate motor response
    • This is ingrained in your memory
  2. Cognitive confusion
    • Person does not know what to do in a new performance context
    • Interference in thought process
    • “What am I supposed to do?”
    • Confusion created by unfamiliarity of situation
  3. Competition between the learner’s intrinsic dynamics and task dynamics
    • Task-specific coordination tendencies are ‘components’ that can be transferred
    • Can make the learning of new patterns of coordination difficult
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9
Q

• explain why transfer of learning is an important concept in motor
Learning

A
  1. Sequencing skills to be learned
    • Simple-to-complex sequence
    • Develop/master basic skills before more complex skills
  2. Gentile’s taxonomy to develop skill progression
    • 16 skill categories
    • Underpins evaluation and instructional decisions
    • Important tool for movement practitioners with respect to the acquisition and performance of motor skills
    • Practical use
    • Systematic basis for selecting progressions of functionally appropriate activities to:
    • Increase performance capabilities
    • Overcome performance deficiencies
  3. Assessing the effectiveness of practice conditions
    • Observing performance only in practice could overestimate or underestimate learning
    • Performance on transfer test provides the best assessment of learning
    • Transfer tests can determine the impact of instruction, method, or protocol
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10
Q

• describe the difference between symmetric and asymmetric bilateral transfer

A

• Asymmetric transfer:
bilateral transfer in which there is a greater amount of transfer from one limb than from the other

• Symmetric transfer:
bilateral transfer in which the amount of transfer is similar from one limb to the other, regardless of which was used first

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11
Q

• identify 2 types of research evidence that support what an observer perceives from demonstration

A
  • Visual perception of human motion

- Influence of demonstration on learning a complex skill

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12
Q

• explain the benefits of novices observing skilled experts and novices observing other novices

A

Novices-Novices
– Encourages active problem-solving
– Deters imitation

Novices-Experts
-– Observer perceives invariant movement patterns of skill
• These patterns will only be observed with a correctly performed skill
– Possible strategic approaches to movement problems

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13
Q

• identify/describe 2 theories which account for why demonstration helps someone learn

A

–>Cognitive mediation theory
Perception → cognitive practicing → action

– Observe the model
– Code and form a cognitive memory representation of the movement
– Brain can rehearse and organize movement information
– Representation serves to guide future movement attempts

–>Dynamic view of modeling
Perception→ Action

– Visual system plays an important role in observational learning
– It automatically processes observed movement and provides basis for coordination and control
– Action is executed according to visual information directly received
– No need for cognitive coding

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14
Q

• identify 4 attention-related factors to consider when formulating verbal instructions

A

1• Quantity of information
2• Focusing attention on movement outcomes
3• Awareness of regulatory conditions
4• Goal achievement strategies

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15
Q

• define verbal cues and provide

A

-Verbal instructions that may provide too little or too much information
– Verbal cues are an alternative
• What purpose do they serve?
– Direct attention to specific features of their movement, an object, or the environment (regulatory conditions of environmental context)
– Act as reminders of critical features or parts of the skill

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16
Q

examples of how verbal cues can be used in skill learning

A

• How can verbal cues be given or used?
– Verbal cues along with a demonstration
– To direct attention to critical parts of the skill
– To prompt movements while performing a skill

17
Q

•distinguish task-intrinsic from augmented feedback

A
Task-Intrinsic Feedback 
•sensory information that arises from the production of movements 
• Visual • Auditory 
• Proprioception 
• Tactile

Augmented Feedback
• Movement-related information provided to the learner by some external source (e.g., stopwatch)
• Adds to or enhances task-intrinsic feedback
• Under the control of the instructor or the therapist

18
Q

• define KR and KP and give an example of each

A

Knowledge of Results (KR)
• Information about a response (performance outcome) that is obtainable by means of an external source
• How successful were one’s actions with respect to the intended environmental goal?
• Aim of this information is to improve the next response
• Successful responses identified and repeated in order to achieve greater precision
Tells you what happened “you ran the 100 m sprint in 50 seconds”

Knowledge of Performance (KP)
• Information about the quality of the movement used to achieve the goal (e.g., joint range of movement)
• Often used in real-world settings
Tells you how it happened “keep your head down and your eyes on the ball”

19
Q

• identify the two roles AF play in the skill learning process

A

1.Facilitates Achievement of the Action Goal
• To perform this skill correctly, are my movements appropriate?
• Want to provide learner with information about pattern of movements
• Keeps error to a minimum
• Corrects error more quickly
• Brings movement pattern closer to goal action
• Feedback can focus learner’s attention on the desired outcome

2.Motivates the Learner
• Motivation strongly linked to goal achievement
• What does motivating feedback give to the learner?
• Information about progress leads to greater effort during task practice
• Greater effort during task practice leads to greater future learning
• Augmented feedback helpful source of information when minimal progress is being made towards achieving one’s goal

20
Q

• describe four different ways AF is needed for skill learning

A
  1. It can be essential for skill acquisition
  2. It may not be necessary for skill acquisition
  3. It can enhance skill acquisition
  4. It can hinder or slow skill acquisition
21
Q

• outline the five content issues related to AF

A
  1. Information about errors vs. correct
    aspects of performance
  2. KR vs. KP
  3. Qualitative vs. quantitative information
  4. Augmented feedback based on error size
  5. Erroneous augmented feedback
22
Q

• describe the techniques used to reduce AF frequency

A

Performance-Based Bandwidths
• Given to learners only when their errors exceed a certain tolerance level
• Decreases dependency on augmented feedback as one becomes more skilled
• Over time, task-intrinsic feedback becomes more important
• Form of negative reinforcement
• When behaviour increases because a stimulus is removed
• Promotes consistency

Self-Selected Frequency
• Learner decides when they will receive feedback
• Learner becomes active in learning process
• Beginners tend to ask for feedback after successful trials
• Why?
• Realize they have made a mistake and try to problem solve on unsuccessful trials
• Motivates them and provides them with reinforcement

23
Q

define practice variability

A
  • Refers to practicing a skill using a variety of different movements and context characteristics
  • What benefit would this have? – Schmidt’s schema theory (1975)
  • Provides the learner with a broader range of movement experiences
  • This is the basis for the development of a set of rules for actions (i.e., schemas)
24
Q

distinguish between variable and constant practice

A

Constant practice:
a practice sequence in which performers rehearse only one variation of the skill

Variable practice:
a practice sequence in which performers rehearse several variations of the skill – E.g., changing the speed of the skill, throwing at various distances or targets

25
Q

describe evidence for the benefits of practice variability

A

• Shea & Kohl (1990, 1991)
– Goal: use 175N of force to squeeze a handle
– Two experimental groups:
• Constant practice: 175N for 289 trials
• Variable practice: 125, 150, 200 and 225 N (no 175N) for 289 trials

• Shoenfelt et al. (2002)
– Task: basketball free throws
– Four experimental groups:
• Constant practice: shoot from the free throw line only
• Variable practice A: 2 ft in front and behind the free throw line
• Variable practice B: 2 ft in front, behind, and at the free throw line
• Variable practice C: from the left/right elbow and top of the key

26
Q

describe how variable practice can be organized using blocked and random practice

A

Blocked practice: a practice sequence in which performers repeatedly rehearse one skill

Random practice:
a practice sequence in which performers perform a number of different skills in no particular order
– Avoids or minimizes consecutive repetitions of any skill

27
Q

describe the practice specificity hypothesis

Practice Specificity

A
  • Specificity of practice hypothesis: test performance is directly related to the similarity between characteristics of practice and test conditions
  • Identical elements theory: the more similar the elements of two skills, or two variations of the same skill are, the greater the positive transfer between the two