冗余,连接较弱的前额半球平衡了空间工作记忆中的精度和容量
Melanie Tschiersch1,2, Akash Umakantha3,4, Ryan C Williamson3,4
1IDIBAPS, Barcelona, Spain.
bioRxiv : the preprint server for biology
|January 27, 2025
概括
前额半球以冗余而又可适应的方式协同工作,以支持空间工作记忆 (WM). 这种架构允许灵活性,提高简单任务的性能,并使复杂任务的专业化成为可能.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 计算神经科学是一种神经科学.
背景情况:
- 在空间工作记忆 (WM) 中前额半球的协调还没有完全被理解.
- 存在两种竞争模式:一种专门的抵押品模式和一种冗余的双边模式.
研究的目的:
- 调查前额半球在空间WM任务期间如何协调.
- 在WM中区分半球函数的专业化和冗余模型.
主要方法:
- 在子子的双边前额叶皮层同时记录在视觉空间WM任务期间.
- 神经表示和行为不准确性的分析.
- 吸引器模型模拟以测试半球合效应.
主要成果:
- 每一个前额半球代表了整个视野中的目标.
- 半球同样预测了空间WM中的行为不准确性.
- 记忆错误显示半球之间的相关性较弱.
- 模拟表明冗余性可以提高简单任务的精度,而弱合可以使复杂任务的专业化.
结论:
- 冗余的,弱合的前额半球支持空间工作记忆.
- 这种半球间架构是多功能性的,适应不同的认知需求.
- 一个统一的模型协调了支持不同半球专业化或冗余性的先前发现.
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