在工作记忆中资源分配的神经机制
Hsin-Hung Li1,2,3, Thomas C Sprague1,4,3, Aspen H Yoo1
1Department of Psychology, New York University, New York, NY 10003, USA.
bioRxiv : the preprint server for biology
|May 20, 2024
概括
视觉皮层中的大脑活动优先考虑工作记忆中的重要信息. 额叶皮层反信号调整神经增益,增强基于行为相关性的记忆表现,改善资源分配.
科学领域:
- 认知神经科学 认知神经科学
- 神经成像是一种神经成像.
- 计算神经科学是一种神经科学.
背景情况:
- 工作内存容量有限,需要根据项目相关性分配资源.
- 在工作记忆中对信息进行优先排序的神经基础尚未得到充分理解.
研究的目的:
- 研究工作记忆资源分配的神经机制.
- 解码和区分神经反应对不同优先级的项目.
主要方法:
- 计算机神经成像技术的开发.
- 在优先考虑的工作记忆任务期间,分析纹状和外纹状皮质的神经活动.
- 神经活动与行为优先级的相关性.
主要成果:
- 视觉皮层的神经响应增加与项目优先级相关.
- 优先级较高的项目显示了更准确的解码,不确定性更小.
- 额叶皮层活动预测了视觉皮层中优先考虑项目的精度差异.
结论:
- 从额叶到视觉皮层的反模型调节神经增益以优先考虑记忆表示.
- 这种机制有助于在工作记忆中基于行为相关性的资源配置.
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