Financial incentives enhance adaptation to a sensorimotor transformation
Financial incentives enhance adaptation to a sensorimotor transformation
复制标题
DOI：
10.1007/s00221-016-4688-3
复制
发表时间：
2016-10-01
影响因子：
2
通讯作者：
Heuer, Herbert
中科院分区：
文献类型：
--
作者：
Gajda, Kathrin;Suelzenbrueck, Sandra;Heuer, Herbert
近年来，对感觉运动转换的适应受到了广泛的关注。然而，迄今为止，动机的作用及其与适应的内隐和外显过程的关系一直被忽视。在这里，我们研究的影响，外部动机的适应视觉旋转的方式提供准确的运动的经济激励。实验组“奖金”的参与者在视觉旋转任务中获得了一笔确定的高终点准确性的钱;控制组“没有奖金”的参与者没有获得经济激励。结果表明，更好的整体适应的视觉转换的参与者谁是外部动机。然而，有没有有利的影响，财政奖励的内隐成分，评估的后效，并单独评估明确的知识。这些研究结果表明，财政激励措施对适应的积极影响是由于一个组成部分，不能衡量的后效或我们的测试明确的知识。一个可能的候选者是基于奖励预测误差的无模型学习，这可以通过财务奖金来增强。
Adaptation to sensorimotor transformations has received much attention in recent years. However, the role of motivation and its relation to the implicit and explicit processes underlying adaptation has been neglected thus far. Here, we examine the influence of extrinsic motivation on adaptation to a visuomotor rotation by way of providing financial incentives for accurate movements. Participants in the experimental group "bonus" received a defined amount of money for high end-point accuracy in a visuomotor rotation task; participants in the control group "no bonus" did not receive a financial incentive. Results showed better overall adaptation to the visuomotor transformation in participants who were extrinsically motivated. However, there was no beneficial effect of financial incentives on the implicit component, as assessed by the after-effects, and on separately assessed explicit knowledge. These findings suggest that the positive influence of financial incentives on adaptation is due to a component which cannot be measured by after-effects or by our test of explicit knowledge. A likely candidate is model-free learning based on reward-prediction errors, which could be enhanced by the financial bonuses.