Human force control may trade-off force error with central tendency and recency biases.
Human force control may trade-off force error with central tendency and recency biases.
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人力控制可以权衡力误差与集中趋势和新近度偏差。
DOI：
10.1101/2023.09.19.558388
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Srinivasan,Manoj
中科院分区：
文献类型：
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作者：
Ryu,HansolX;Srinivasan,Manoj
了解人类如何控制力有助于理解人类运动行为和感觉运动控制。然而，人类神经系统如何处理不同的控制标准，如准确性和能量成本，目前还没有很好的理解。我们进行了力跟踪实验，参与者施加力等距，同时接收视觉力反馈，跟踪目标力的步骤变化。实验的目的是消除歧义不同的似是而非的目标函数组件。我们发现，力跟踪误差在很大程度上是由误差减少趋势和力偏差之间的权衡来解释的，但我们不需要包括省力的趋势。集中倾向偏差（centraltendencebias）和近因偏差（recencebias）是解释我们的许多观察结果的必要条件。令人惊讶的是，当我们去除指向目标的力量要求时，我们没有观察到这种偏见，这表明这种偏见可能是特定于任务的。这项研究提供了更广泛的运动控制和人类感知领域的见解，其中涉及行为或感知偏见。
Understanding how humans control force is useful for understanding human movement behaviors and sensorimotor control. However, it is not well understood how the human nervous system handles different control criteria such as accuracy and energetic cost. We conducted force tracking experiments where participants applied force isometrically while receiving visual force feedback, tracking step changes in target forces. The experiments were designed to disambiguate different plausible objective function components. We found that force tracking error was largely explained by a trade-off between error-reducing tendency and force biases, but we did not need to include an effort-saving tendency. Central tendency bias, which is a shift towards the center of the task distribution, and recency bias, which is a shift towards recent action, were necessary to explain many of our observations. Surprisingly, we did not observe such biases when we removed force requirements for pointing to the target, suggesting that such biases may be task-specific. This study provides insights into the broader field of motor control and human perceptions where behavioral or perceptual biases are involved.