Morton Neal W, Preston Alison R
The Center for Learning & Memory, The University of Texas at Austin, 1 University Station Stop C7000, Austin, TX 78712-0805, USA.
Department of Psychology, The University of Texas at Austin, 108 E Dean Keeton Stop A8000, Austin, TX 78712-1043, USA.
Curr Opin Behav Sci. 2021 Apr;38:83-89. doi: 10.1016/j.cobeha.2020.12.005. Epub 2021 Jan 8.
Hippocampus and entorhinal cortex form cognitive maps that represent relations among memories within a multidimensional space. While these relational maps have long been proposed to contribute to episodic memory, recent work suggests that they also support concept formation by representing relevant features for discriminating among related concepts. Cognitive maps may be refined by medial prefrontal cortex, which selects dimensions to represent based on their behavioral relevance. Hippocampal pattern completion, which is critical for retrieval of episodic memories, may also contribute to generalization of existing concepts to new exemplars. Navigation within hippocampal cognitive maps, which is guided by grid coding in entorhinal cortex, may contribute to imagination through recombination of event elements or concept features.
海马体和内嗅皮质形成认知地图，这些地图在多维空间中表征记忆之间的关系。虽然长期以来人们一直认为这些关系地图有助于情景记忆，但最近的研究表明，它们还通过表征用于区分相关概念的相关特征来支持概念形成。认知地图可能会被内侧前额叶皮质细化，内侧前额叶皮质会根据行为相关性选择要表征的维度。海马体模式完成对于情景记忆的检索至关重要，它也可能有助于将现有概念推广到新的范例。在海马体认知地图中的导航由内嗅皮质中的网格编码引导，这可能通过事件元素或概念特征的重组有助于想象力。
