Number of options in a movement sequence affects learners' behavior in a self-controlled practice condition

Area of Science:

• Motor learning
• Cognitive psychology
• Human movement science

Background:

• Self-controlled practice involves decision-making, where available options can influence learner behavior.
• The number of flexible components within a movement sequence may impact how individuals self-regulate their practice.
• Understanding self-controlled practice is crucial for optimizing skill acquisition in various domains.

Purpose of the Study:

• To investigate how the number of constraints on movement sequence options affects self-controlled practice.
• To determine if manipulating the options for movement sequences influences the learning process and performance outcomes.
• To examine the relationship between decision-making freedom and motor skill acquisition.

Main Methods:

• A coincident timing task using a 200-cm track with light-emitting diodes (LEDs) and sensors was employed.
• Participants were instructed to sequentially touch six sensors, with the final touch coinciding with a target light.
• Two groups practiced under different constraint conditions: Group 1 (one constraint) and Group 2 (three constraints), until achieving a timing error less than 30 msec.

Main Results:

• No significant differences were found in the number of trials required to reach the performance criterion between the two groups.
• Participants in the group with more constraints (Group 2) generated fewer unique movement sequences compared to the less constrained group (Group 1).
• Learners in the more constrained group were more inclined to consistently use the same movement sequence throughout practice.

Conclusions:

• The number of available options for a movement sequence influences how learners self-regulate their practice strategies.
• While manipulating sequence options affects practice behavior, it does not alter the total amount of practice needed to achieve a specific performance level.
• These findings highlight the interplay between cognitive control and motor learning in self-regulated skill acquisition.