响应激活的调制导致感知运动决策中的偏差
Joseph X Manzone1, Timothy N Welsh1
1Centre for Motor Control, Faculty of Kinesiology & Physical Education, University of Toronto.
概括
感知运动决策与行动计划密切相关. 影响响应激活的空间线索改变了决策值,证明了一个统一的感知-行动系统.
科学领域:
- 认知神经科学 认知神经科学
- 感知 - 行动合
背景情况:
- 人类决策涉及整合感知证据和准备运动行为.
- 最近的研究表明,决定和行动规划的证据积累之间存在联系.
研究的目的:
- 研究响应激活和感知决策之间的关系.
- 为了测试这个假设,行动计划与感知证据积累相结合.
主要方法:
- 参与者报告了以不同比例呈现的刺激中占主导的颜色 (黄色/蓝色).
- 使用空间兼容/不兼容的刺激呈现来操纵响应激活.
- 颜色报告的决策值在不同的空间提示条件下测量.
主要成果:
- 向左的刺激 (与"黄色"反应相容) 降低了"黄色"决定的证据值.
- 向右的刺激 (与"蓝色"反应相容) 降低了"蓝色"决定的证据值.
- 定向顺序并没有解释观察到的决策偏差.
结论:
- 空间诱导的响应激活直接影响知觉运动决策结果.
- 结果支持在决策中紧密结合的感知-行动系统.
- 行动规划和感知证据的整合是密切相关的过程.
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