半球对场景感知的主导地位在导航网络的不同组件之间有所不同
David P Carey1, Emma M Karlsson2, Leah T Johnstone3
1School of Psychology and Sport Sciences, Bangor University, UK.
Vision research
|December 11, 2025
概括
在熟悉的环境中难以定位,称为地形失调,与大脑损伤有关. 这项研究量化了场景感知中的大脑不对称性,揭示了微妙的右半球偏差,特别是在后皮层.
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
- 神经成像是一种神经成像.
背景情况:
- 地形偏向失调,这是导航障碍的症状,通常跟随头头脑损伤.
- 造成迷失方向的病变往往是双边的,但右半球损伤与这种缺陷更为密切相关.
- 关于场景感知和空间导航的神经成像研究经常忽视右半球的主导地位,这是由于检测大脑不对称性的方法限制.
研究的目的:
- 用先进的方法量化在场景感知中的大脑不对称性,适合检测微妙偏差.
- 研究场景感知网络中的感知和语义节点的横向化.
- 探索 retrosplenial皮质在场景感知和空间导航中的作用.
主要方法:
- 量化大脑不对称的场景感知在一个大,多样化的样本,包括非右撇子的个人.
- 兴趣区域分析,以检查场景感知网络中的特定节点.
- 使用独立于值的方法来准确可视化和量化大脑不对称.
主要成果:
- 在场景感知中观察到一个弱但一致的右半球偏差.
- 兴趣区域分析对感知和语义节点的差异侧面化提供了有限的支持.
- 发现最突出的右侧主导在后皮质中,挑战了现有的功能模型.
结论:
- 这项研究强调了用于量化大脑不对称性的先进方法在理解大脑网络内的功能专业化的实用性.
- 研究结果表明,在场景感知中存在右半球偏差,而后半球皮质起着显著的作用.
- 公共可用的数据集是未来研究场景感知功能神经解剖学的宝贵资源.
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