Quantifying Individual Differences in the Relationship Between Intended and Actual Force Across Repeated Trials With External Feedback

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AE decreased across trials, indicating that accuracy improved with external feedback.
A mixed-effects model assessed individual differences in accuracy and learning rate across force levels.
Forty-nine healthy young men completed 11 trials at three target forces, with varying accuracy outcomes.
Results indicate that improvement through repeated external feedback is robust, despite individual variability.

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Observational analysis found improved accuracy in grip force tasks with external feedback, suggesting variability in individual learning rates.

Sugaya et al. (2025) studied this question.

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Observational analysis found improved accuracy in grip force tasks with external feedback, suggesting variability in individual learning rates.