子侧面前额皮层的不同子区域对抽象序列及其组件做出反应
Nadira Yusif Rodriguez1, Aarit Ahuja1, Debaleena Basu1,2
1Department of Neuroscience, Brown University.
bioRxiv : the preprint server for biology
|February 26, 2024
概括
侧面前额皮层 (LPFC) 显示了处理顺序信息的功能专业化. 在LPFC的46区内的不同次区域响应抽象规则与图像周期性和视觉序列中的同一性.
科学领域:
- 神经科学是一个神经科学.
- 认知神经科学 认知神经科学
- 灵长类大脑研究研究
背景情况:
- 日常活动依赖于处理顺序信息,包括周期性,项目标识和抽象规则.
- 之前的研究将对抽象序列规则变化的反应定位到侧面前额皮层 (LPFC) 的46区域的后底部.
- 对于LPFC子区域在处理其他序列组件 (如周期性和身份) 中的作用仍然不清楚.
研究的目的:
- 为了调查46区域的后底是否会对图像周期性和单独的身份作出反应.
- 为了确定不同的LPFC子区域是否显示不同序列组件的功能专业化.
- 为了区分后底相对于腹部LPFC亚区域对序列元素的反应.
主要方法:
- 醒着的功能性磁共振成像 (fMRI) 用于三个雄性猿.
- 设计了两个没有报告的视觉任务:一个是抽象的视觉序列,另一个是匹配的周期性和身份,但没有序列.
- 在这些任务期间记录了大脑活动,以分析对序列规则违规,周期性变化和身份变化的反应.
主要成果:
- 46区的后底选择性地对违反抽象序列规则的行为作出反应.
- 46区的腹部银行对图像周期性和身份的变化做出了反应,但对抽象序列规则的变化没有反应.
- 这些发现揭示了46区内处理不同类型的顺序规律性的功能解离.
结论:
- 侧面前额叶皮层 (LPFC) 在其解剖学子结构中表现出功能专业化,用于发出明显的刺激规律的信号.
- 邻近LPFC子区域之间的相互作用可能为复杂的认知行为和世界建模提供关键的支架.
- 这种专业化支持识别抽象模式,这是日常生活中必不可少的导航.
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