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在奖励评估期间的身体努力悖论以及与感知控制的联系
1Department of Psychology, Dalian Medical University, Dalian, China.
Cerebral cortex (New York, N.Y. : 1991)
|June 20, 2023
概括
身体的努力在奖励评估中产生了一个"努力悖论". 早期的神经反应低估了与努力相关的奖励,而后来的反应则增强了它们,通过感知控制来调节.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 决策科学 决策科学 决策科学
背景情况:
- 努力悖论描述了如何努力前性地降低了奖励,但后性地提高了它们的主观价值.
- 了解这种悖论的神经动态对于解释奖励评估至关重要.
研究的目的:
- 调查奖励评估中的努力悖论背后的神经机制.
- 为了检查身体的努力如何影响神经对奖励的反应随着时间的推移.
- 识别努力-奖励关系的调节者,如感知控制.
主要方法:
- 40名参与者完成了一项努力奖励任务,涉及不同的身体努力,以获得金钱奖励.
- 使用脑电图 (EEG) 来测量神经动态,特别是奖励积极性 (RewP) 和晚期积极潜力 (LPP).
- 参与者参与积极或被动的决策,以获得奖励.
主要成果:
- 随着时间的推移,物理努力表现出一种努力悖论:努力将早期的RewP扣除,但增强了晚期的LPP.
- 观察到一个动态平衡:较大的RewP折扣与较大的LPP提升相关.
- 感知控制调节了努力-奖励关系,增加了奖励灵敏度,减少了努力折扣.
结论:
- 神经动力学揭示了奖励评估中的时间依赖性努力悖论,早期的折扣和以后的增强.
- RewP和LPP之间的相互作用反映了努力对奖励价值的影响的动态平衡.
- 感知控制在调节努力如何影响奖励敏感性和折扣方面发挥着重要作用,为决策过程提供了洞察力.
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