Does limiting pre-movement time during practice eliminate the benefit of practicing while expecting to teach?

Area of Science:

• Motor learning and skill acquisition
• Cognitive psychology and motor control

Background:

• Practicing a motor skill with the intent to teach increases movement preparation time.
• The role of this increased preparation time in enhanced motor learning remains unclear.

Purpose of the Study:

• To investigate whether increased motor preparation time mediates the benefits of expecting to teach on motor learning.
• To examine the impact of teaching expectation versus testing expectation on golf putting skill acquisition.

Main Methods:

• Participants practiced golf putting under either a "teach" or "test" expectation condition.
• Motor preparation time was manipulated (limited vs. unlimited) for a subset of participants in each condition.
• Posttest performance was assessed the following day.

Main Results:

• The hypothesis that enhanced learning from teaching expectation is mediated by preparation time was not supported by the primary data.
• An exploratory cumulative analysis of prior experiments suggested teaching expectation enhances motor learning.
• This enhancement did not appear to be linked to motor preparation time during practice.

Conclusions:

• The expectation to teach a motor skill can improve learning outcomes.
• The mechanism for this improvement is likely not the increased motor preparation time observed during practice.
• Further research is needed to elucidate the cognitive and behavioral factors driving this phenomenon.