CNS Motor Control and Motor Learning 1 — Questions and Answers
Question 1: According to the Fitts and Posner three-stage model, which stage of motor learning is characterized by the highest cognitive demands, frequent errors, and large performance gains?
- Autonomous stage
- Associative stage
- Cognitive stage (Correct answer)
- Procedural stage
Correct answer: Cognitive stage
The cognitive stage is the initial phase where learners require significant conscious attention, make frequent errors, and show the largest performance gains as they work to understand the task.
Question 2: Which of the following BEST defines motor learning?
- Temporary changes in motor behavior resulting from fatigue or motivation
- Relatively permanent changes in the capability for skilled motor behavior resulting from practice or experience (Correct answer)
- Immediate adaptations to new environmental demands during task performance
- Reflexive motor responses to sensory stimulation
Correct answer: Relatively permanent changes in the capability for skilled motor behavior resulting from practice or experience
Motor learning refers to relatively permanent changes in the capability for skilled motor behavior that result from practice or experience, distinguishing it from temporary performance fluctuations.
Question 3: Distributed practice in motor learning is defined as a schedule in which:
- Rest intervals equal or exceed the actual practice time (Correct answer)
- Multiple skills are practiced simultaneously across different environments
- Practice is distributed among several therapists or instructors
- Task difficulty is distributed gradually from simple to complex
Correct answer: Rest intervals equal or exceed the actual practice time
Distributed practice involves rest intervals that are equal to or longer than the actual practice time, and is generally more effective for long-term retention than massed practice.
Question 4: Which brain structure is primarily responsible for procedural motor learning and habit formation through dopaminergic reinforcement pathways?
- Cerebellum
- Hippocampus
- Basal ganglia (Correct answer)
- Prefrontal cortex
Correct answer: Basal ganglia
The basal ganglia are critical for procedural motor learning and habit formation, working through dopaminergic reward pathways to reinforce and consolidate motor programs over repeated practice.
Question 5: Knowledge of Results (KR) in motor learning is BEST described as:
- Intrinsic sensory feedback received during movement execution
- Augmented feedback about the outcome or goal achievement of a movement (Correct answer)
- Information about the kinematic pattern or quality of the movement
- Visual feedback provided continuously during task performance
Correct answer: Augmented feedback about the outcome or goal achievement of a movement
Knowledge of Results (KR) is a form of augmented feedback that provides information about the outcome or goal achievement relative to the intended goal, rather than about movement quality.
Question 6: According to the systems model of motor control proposed by Shumway-Cook and Woollacott, movement emerges from:
- Pre-programmed motor commands generated solely by the motor cortex
- The dynamic interaction of the task, the individual, and the environment (Correct answer)
- Hierarchical commands descending from higher to lower motor centers
- Reflexive responses to sensory stimuli mediated by spinal circuits
Correct answer: The dynamic interaction of the task, the individual, and the environment
The systems model proposes that movement is not centrally pre-programmed but emerges dynamically from the interaction of the task demands, individual characteristics, and environmental constraints.
Question 7: Which practice schedule has been shown to produce the greatest long-term retention and transfer of multiple motor skills, despite producing slower initial acquisition?
- Blocked practice
- Serial practice
- Random practice (Correct answer)
- Massed practice
Correct answer: Random practice
Random practice, due to the contextual interference effect, leads to greater long-term retention and transfer because the varied scheduling enhances memory encoding and problem-solving during acquisition.
CNS Motor Control and Motor Learning 1
According to the Fitts and Posner three-stage model, which stage of motor learning is characterized by the highest cognitive demands, frequent errors, and large performance gains?