Principles of Motor Learning*Motor learning: learning and refinement of motor skills over time
-Takes place in a complex interaction between child and environment
-Refers to the intrinsic process that accompanies a child experiencing and participating in meaningful activities and the long-lasting changes in motor performance
-Based on principles of neuroplasticityNeuroplasticity*The ways the brain can change by laying down new circuitry and making new neural connections
-Occur when the brain receives new information/stimuli
-In response, permanent
changes happen in
the brain.
-Learning requires feedback, feedforward, practice, modeling and transfer of learning. ONCHAPTER 24-MOTOR CONTROL AND MOTOR LEARNING SPECIFICALLY FOR YOUFOR ONLY$13. 90/PAGEOrder NowPrinciples of Motor Control*Motor control: the ability to regulate or direct the mechanisms essential to movement
-Role of CNS, techniques to quantify movement, nature and quality of the movement
-Addresses posture, mobility, and fine motor and gross motor skills; explores motor development throughout the lifespan
-Supports a dynamic systems approachPrinciples of Motor Control (cont’d)*Dynamic systems theory: interplay between the neuromuscular system, the environment, cognition, and the intended task
*Change in one system affects the others.
*One task involves the dynamic interaction of many systems (e. g., visual, proprioceptive, tactile).
*To engage, one must have an intent to move (guided by a cognitive process).
*Change leads to neuroplasticity. Pillars of Motor Control*Interventions are meaningful.
-Children engage more and for longer when things
are meaningful.
*Interventions closely mimic occupations of childhood.
*Intervention occurs in the
*setting similar to the natural
*context where the
*occupation takes place. Applying Motor Learning to Practice*Motor learning concepts can inform occupational therapy intervention.
-Use the concepts in a meaningful, occupation-based activity within the natural context. Feedback*Informs the learning about progress in acquiring new motor skills
*Before (feedforward) and after (feedback) performance
*Intrinsic (within the child)
*Extrinsic (provided by an external source)
*Verbal and nonverbal
*Consider type, timing, motor outcomes. Feedback (cont’d)*Feedforward: adjustments in anticipation of the movement required
-OT may help by discussing the movement required before doing it
*Feedback: adjustments based on performance
-OT may help by asking the child to reflect on the movement
*Intrinsic feedback: information a child received following a practice attempt (nervous system processes)
*Extrinsic feedback: provided by OT, others. Helpful in identifying errors in movementTiming of Feedback*May be provided in various ways:
-Concurrent: during the movement
-Immediate: just following
-Terminal: right at the completion
-Delayed: after the movement has been completed and a time interval has transpired
*Sporadic (following some but not every trial) feedback was found to be more beneficial.
*Children respond to consistent extrinsic feedback at the beginning of a new skill, and then internalize it after practice. Modeling or Demonstration*Providing visual information about how to perform a skill or task
-Most effective when presented in natural context
*Demonstrations are best if provided:
-Before practicing skill and in early stages of learning
-Slowly, without verbal feedback
-After emphasizing critical cues
-Throughout practice as frequently as is helpfulVerbal Instruction*Can be used to teach children and youth motor skill
-Practice is typically preceded or accompanied by verbal instruction or cues.
~Brief, 1-3 words
-Once the child completes key components, the OT may provide additional verbal instruction to refine movement.
-Providing repetitive practice
with the same verbal instruction
reinforces learningKnowledge of Results and Knowledge of Performance*Knowledge of results (KR)
-Information provided from external source about the outcome or end result
-Helps children retain newly learned motor skills
*Knowledge of performance
-Providing information about the nature or characteristic of the movement
-Helps children understand how they could adjust or change movementsPractice and Repetition*Repetition of motor tasks enhances brain development.
*Blocked practice: repeating the similar movements with short rest breaks
*Distributed: repetition of different skills spread over the course of the intervention with rest breaks
*Variable/random: practice of many different skills with periods of restTransfer of Learning/Generalization*Applying past learning to new situations
-Works best when client has opportunity for mastery of foundational skills first
-Then you incorporate different skills. Motor Control Principles in Practice*Motor memory includes registration of the influence and the internal feedback from the motor output back into the sensory system.
-After this link is when learning occurs.
-Motor control is best addressed by engaging the child in meaningful activities that closely mimic occupations of childhood and occur in natural context. Degrees of Freedom*Joints vary in the amount of movement allowed, may be difficult for a child to control the movements
-For fine motor tasks, a child must control the shoulder, wrist, elbow, and hand joints.
~To increase control, the degrees of freedom can be limited by holding or stabilizing the jointCoordination and Timing*Coordination: activation of specific muscles together
-May be addressed by beginning with gross movements and progressing to more precise movements during intervention
-Also by encouraging postural stability during tasks
*Timing may be promoted by including music, rhythmic songs, or counting. Strength and Muscle Tone*Strength: ability to contact a muscle or muscle group against gravity and resistance
-Children with motor deficits may have decreased strength and endurance, impacting occupational participation.
*Muscle tone: amount of tension in resting muscle or muscle group
-Discrepancies interfere with occupations.
-OT may focus on helping the child engage, allow him or her to refine motor skills
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