The Quiet Eye and Motor Expertise: Explaining the "Efficiency Paradox"

Area of Science:

• Cognitive Psychology
• Motor Control
• Expert Performance

Background:

• Experts typically demonstrate longer quiet eye (QE) durations than novices.
• This finding is paradoxical as motor expertise usually involves process economization, not prolonged response programming.
• The inhibition hypothesis suggests experts inhibit non-optimal solutions due to extensive experience.

Purpose of the Study:

• To investigate if extending the task-solution space influences quiet eye (QE) duration gains in motor learning.
• To test the hypothesis that a larger number of task variants leads to greater QE duration in experts.
• To examine the relationship between task-solution space extent, inhibition, and QE duration in motor expertise.

Main Methods:

• Trained participants on a far-aiming task with either a low-extent (few variants) or high-extent (many variants) task-solution space.
• Collected data over 750+ trials, including pretest, post-test, and retention test performance and QE durations.
• Compared QE duration gains between the low-extent and high-extent training groups.

Main Results:

• Both groups improved performance and showed longer QE durations in the post-test compared to the pre-test.
• QE durations returned to baseline levels at the retention test.
• No additional QE duration gain was observed in the high-extent group compared to the low-extent group.

Conclusions:

• The assumption that extended task-solution space leads to longer QE durations was not supported.
• Findings tended to align with the density explanation of the inhibition hypothesis.
• Further research is warranted on the specificity of motor skills and the QE-expert performance paradox.