右后壁皮质皮质调解了注意力选择偏差的空间重定向
Ankita Sengupta1, Sanjna Banerjee1,2, Suhas Ganesh1,3
1Centre for Neuroscience, Indian Institute of Science, Bangalore, 560012, India.
Nature communications
|August 13, 2024
概括
右后壁皮质皮质 (rPPC) 在视觉空间注意力中因果关系地影响选择偏差. 在注意任务期间,rPPC的神经刺激会选择性地损害偏差控制,而不是感知灵敏度.
科学领域:
- 神经科学是一个神经科学.
- 认知心理学 认知心理学
- 计算神经科学是一种神经科学.
背景情况:
- 注意力通过调节感知灵敏度和选择偏差来增强行为.
- 区分这些注意力组成部分的神经基板仍然不清楚.
- 右后壁皮质 (rPPC) 涉及前脑注意力网络.
研究的目的:
- 调查背部rPPC在控制感知灵敏度与选择偏差中的因果作用.
- 确定是否有不同的神经机制是注意力的敏感性和偏差调制的基础.
主要方法:
- 两组参与者 (n=28和n=26) 进行了注意力调节任务.
- 阻断性重复性跨磁刺激 (rTMS) 或40 Hz跨交替电流刺激 (tACS) 应用于背部rPPC.
- 通过分析敏感性和偏差的注意力调制来评估任务性能.
主要成果:
- 使用rTMS或tACS进行rPPC刺激,影响任务执行.
- 神经刺激选择性地改变了注意力调节的选择偏差,而不是感知灵敏度.
- 参与者在经过rPPC刺激后,显著减少了对未经调节的位置的偏差.
结论:
- 背部rPPC因果调解视觉空间注意力选择偏差的重定向.
- 这些发现表明,注意力的敏感性和偏差组件具有不同的神经基质.
- 在注意力网络中的决策过程中,rPPC起着至关重要的作用.
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