熟悉的远距离地标对目标表示的影响:功能磁共振成像研究
Yuanqi Cai1, Junjing Wang2, Yidan Qiu1
1South China Normal University.
Journal of cognitive neuroscience
|September 19, 2025
概括
熟悉的远距离地标线索 (DLC) 通过影响大脑如何处理目标的距离和方向来提高空间导航的准确性. 正确的SMA在这种调制中起着关键作用.
科学领域:
- 神经科学是一个神经科学.
- 认知心理学 认知心理学
- 空间导航 空间导航
背景情况:
- 人类使用远程地标线索 (DLC) 进行空间导航.
- 熟悉的DLC增强了空间表示的准确性,但神经机制尚不清楚.
研究的目的:
- 研究大脑如何使用熟悉的DLC来推断目标距离和方向偏差.
- 在空间记忆检索中检查DLC熟悉性的神经相关性.
主要方法:
- 26名健康成年人在虚拟现实竞技场中学习了物体位置,其中包括DLC.
- 在fMRI期间测试了方向和距离记忆,使用熟悉和不熟悉的DLC.
- 对空间误差和偏差分析了欧几里德距离 (ED) 和最小角度 (MA).
主要成果:
- DLC熟悉度调节了目标距离 (EDg) 对终点误差 (EDe) 的影响.
- 右补充运动区 (SMA) 活动与这种适度相关.
- 副海马环/逆皮质编码EDg用于方向记忆.
- 泰拉马斯/OFC编码EDg和目标偏差 (MAg) 用于远距离记忆.
结论:
- 熟悉的DLC通过调节目标近距离的神经处理来增强空间导航.
- 确定了参与使用DLC用于空间记忆和导航的特定大脑区域.
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