首页> 美国卫生研究院文献>Scientific Reports >Robust encoding of scene anticipation during human spatial navigation
【2h】

Robust encoding of scene anticipation during human spatial navigation

机译:人类空间导航中对场景预期的鲁棒编码

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

In a familiar city, people can recall scene views (e.g., a particular street corner scene) they could encounter again in the future. Complex objects with multiple features are represented by multiple neural units (channels) in the brain, but when anticipating a scene view, the kind of feature that is assigned to a specific channel is unknown. Here, we studied neural encoding of scene view anticipation during spatial navigation, using a novel data-driven analysis to evaluate encoding channels. Our encoding models, based on functional magnetic resonance imaging (fMRI) activity, provided channel error correction via redundant channel assignments that reflected the navigation environment. We also found that our encoding models strongly reflected brain activity in the inferior parietal gyrus and precuneus, and that details of future scenes were locally represented in the superior prefrontal gyrus and temporal pole. Furthermore, a decoder associated with the encoding models accurately predicted future scene views in both passive and active navigation. These results suggest that the human brain uses scene anticipation, mediated especially by parietal and medial prefrontal cortical areas, as a robust and effective navigation processing.
机译:在熟悉的城市中,人们可以回忆起将来可能再次遇到的场景视图(例如,特定的街角场景)。具有多个特征的复杂对象由大脑中的多个神经单元(通道)表示,但是在预测场景视图时,分配给特定通道的特征种类是未知的。在这里,我们研究了空间导航过程中对场景视图预期的神经编码,使用了一种新型的数据驱动分析来评估编码通道。我们基于功能磁共振成像(fMRI)活动的编码模型通过反映导航环境的冗余通道分配提供了通道错误校正。我们还发现,我们的编码模型强烈反映了下顶回和前突的大脑活动,并且未来场景的细节在上额前回和颞极局部表示。此外,与编码模型关联的解码器可以在被动导航和主动导航中准确预测未来的场景视图。这些结果表明,人脑使用场景预测(尤其是由顶额和内侧前额叶皮层区域介导的场景预测)作为一种强大而有效的导航处理。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号