奖励历史调节处理任务无关的情感面孔在一个苛刻的任务
1Beijing Key Laboratory of Learning and Cognition and School of Psychology, Capital Normal University, Beijing 100048, China.
Brain sciences
|June 28, 2023
概括
奖励的关联,而不是情绪,自动吸引注意力. 即使在苛刻的任务中,高奖励线索也会影响神经活动,显示奖励信息的自动处理,无论任务相关性如何.
科学领域:
- 认知神经科学 认知神经科学
- 奖励处理的神经科学奖励处理的神经科学
- 视觉注意力 视觉注意力
背景情况:
- 众所周知,情感面部表情可以捕捉注意力资源.
- 奖励协会在调节注意力的作用,特别是在苛刻的任务中,需要进一步研究.
- 与事件相关的潜能 (ERP) 提供了神经处理动态的精确测量.
研究的目的:
- 研究奖励相关的情感面部干扰器如何在苛刻的视觉任务中捕获注意力资源.
- 通过与事件相关的潜能 (ERP) 检查奖励信息的神经处理.
- 为了区分情绪价值与奖励关联对注意力的影响.
主要方法:
- 参与者经历了一个学习阶段,将奖励概率 (高/低) 与面部表情 (生气,快乐,中立) 配对.
- 在测试阶段,执行了一项苛刻的,与面部无关的视觉歧视任务.
- 记录了与事件相关的潜力 (ERP),以分析神经对外围面部干扰因子的反应.
主要成果:
- 行为表现不受分散注意力的情绪价值的影响,这表明任务无关紧要.
- 帕里埃托-头P200 ERP组件显示了情绪 (愤怒,快乐) 和中性面孔的增强幅度.
- 奖励关联调节神经活动:高奖励线索与低奖励线索相比,增强了N170,EPN和N2pc组件.
结论:
- 与任务无关的情感面部刺激不会影响高度要求的任务中的行为或神经反应.
- 与奖励相关的信息被自动处理,不管上下任务要求如何.
- 这表明奖励处理机制可以独立于明确的注意力集中而运作.
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