在乌的末脑中,内源性选择性注意力的神经相关物
Lukas Alexander Hahn1, Erica Fongaro2, Jonas Rose3
1Neural Basis of Learning, Institute of Cognitive Neuroscience, Faculty of Psychology, Ruhr University Bochum, Bochum, Germany. lukas.hahn@ruhr-uni-bochum.de.
Communications biology
|March 22, 2025
概括
定向的注意力,对于灵活的行为至关重要,在乌中进行了研究. 研究结果表明,在鸟类中,即使没有像哺乳动物一样的皮质分层,也可能存在自上而下的内源性注意力.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 比较心理学比较心理学
背景情况:
- 有针对性的注意力对于哺乳动物和鸟类的适应性行为至关重要.
- 内源性注意力的神经机制在哺乳动物中得到了很好的研究,但在鸟类中了解得很少.
- 鸟类和哺乳动物的大脑进化了不同的结构,特别是在鸟类中缺乏皮质分层.
研究的目的:
- 为了研究鸟类内源性注意力的神经基础.
- 为了确定鸟类大脑中是否存在自上而下的注意力机制,尽管与哺乳动物的结构差异很大.
- 为了探索鸟类的认知功能 nidopallium caudolaterale.
主要方法:
- 从乌的caudolaterale nidopallium中记录了神经元信号.
- 乌执行了一项涉及工作记忆和内生注意力的变化检测任务.
- 分析了活动模式,以确定认知过程的注意力调制.
主要成果:
- 尼多帕尾侧神经元活动反映了工作记忆的注意力增强.
- 在乌中观察到自上而下的内源性注意力的证据.
- 与注意力相关的认知功能由非分层的大脑结构支持.
结论:
- 顶向下的内源性注意力并不仅限于有层状皮层的哺乳动物.
- 鸟类大脑拥有神经机制来引导注意力,支持灵活的行为.
- 这项研究提供了关于脊椎动物认知功能的融合演变的见解.
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