侧面前额皮层的神经元激活序列在虚拟导航期间编码视觉空间工作记忆
Alexandra Busch1,2,3, Megan Roussy1,2,4, Rogelio Luna1,2,4
1Robarts Research Institute, University of Western Ontario, London, ON, Canada.
Nature communications
|May 25, 2024
概括
神经激活序列 (NAS) 通过在虚拟现实中编码空间信息来支持工作记忆 (WM). 这种代码是可适应的,与持续的发射不同,并且受到胺的损害.
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:
- 工作记忆 (WM) 涉及维护和操纵信息.
- 关于WM的神经基础,特别是使用的代码,仍然存在争议.
- 了解WM神经代码对于认知神经科学至关重要.
研究的目的:
- 调查视觉空间工作记忆背后的神经代码.
- 为了比较神经元激活序列 (NASs) 与持久发射代码.
- 检查NMDA受体在WM神经编码中的作用.
主要方法:
- 从子的侧面前额皮层同时进行多单元记录.
- 视觉空间WM任务涉及在虚拟3D环境中的导航.
- 使用胺来阻止NMDA受体的药理学操纵.
主要成果:
- 确定了不同的神经元激活序列 (NASs),在虚拟环境中编码记住的位置.
- 在虚拟现实任务中,NAS代码的性能优于持久发射代码.
- 在WM任务期间,胺选择性地损害了NAS代码和行为表现.
结论:
- 工作记忆的神经代码具有多功能性和适应性,特别是在动态环境中.
- 神经元激活序列代表了视觉空间工作记忆的关键神经代码.
- 对于有效的基于NAS的工作记忆来说,NMDA受体功能至关重要.
相关概念视频
Working Memory
156
Working memory refers to a combination of components, including short-term memory and attention, that allow an individual to hold information temporarily as we perform cognitive tasks. It is an essential cognitive function that enables the execution of complex tasks such as problem-solving, comprehension, and reasoning. Unlike short-term memory, which simply involves the storage of information for a brief period, working memory involves the active manipulation and processing of this...
156
Somatosensory, Motor, and Association Cortex
478
The somatosensory cortex in the parietal lobes is crucial for interpreting sensory data such as touch, temperature, and proprioception. The somatosensory cortex, situated in the parietal lobes, plays a vital role in interpreting sensory information like touch, temperature, and proprioception—awareness of body position. This specialized brain region features an organized structure wherein neurons at the top primarily process sensations originating from the lower body. In contrast, those at...
478


