内源和外源的注意力相互作用通过混合前额叶皮层资源.
Fabio Di Bello1, Francesco Ceccarelli1, Adam Messinger2
1Department of Physiology and Pharmacology, Sapienza University of Rome, 00185 Rome, Italy.
Current biology : CB
|July 19, 2025
概括
这项研究表明,侧面前额皮层 (lPFC) 使用共享的神经资源,用于非自愿 (外源) 和自愿 (内源) 的注意力. 这些重叠的资源有助于平衡内部目标与外部需求,完善注意力控制.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 灵长类动物研究研究
背景情况:
- 空间注意力涉及非自愿 (外源) 和自愿 (内源) 的过程.
- 内生注意力被认为是独立于运动系统的,与外生注意力不同.
- 侧面前额皮层 (LPFC) 在将注意力与运动目标分离方面的作用尚未完全理解.
研究的目的:
- 研究横向前额叶皮层 (lPFC) 在空间注意力中的功能.
- 确定LPFC神经活动与外源和内源注意力之间的关系.
- 探索注意力和运动系统之间共享神经资源的概念.
主要方法:
- 在两只子中使用一个任务来空间地将注意力与运动目标分离.
- 在注意力任务期间从lPFC单元记录的神经活动.
- 分析了LPFC神经元的动态编码特性.
主要成果:
- 一些lPFC单元动态编码了所参加的地点或机动目标.
- 这些神经资源对于外在的注意力至关重要.
- 通过内源性注意力来招募LPFC减少了运动注意力干扰和调节的外源性转移.
结论:
- lPFC包含重叠的神经资源,由注意力和运动系统共享.
- 外在的注意力通过调动这些共享资源来完善注意力控制.
- 这些重叠的资源促进了内部目标和外部需求之间的动态平衡.
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