Considering structural connectivity in the triple code model of numerical cognition: differential connectivity for magnitude processing and arithmetic facts
Considering structural connectivity in the triple code model of numerical cognition: differential connectivity for magnitude processing and arithmetic facts
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DOI：
10.1007/s00429-014-0951-1
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发表时间：
2016-03-01
影响因子：
3.1
通讯作者：
Willmes, Klaus
中科院分区：
文献类型：
--
作者：
Klein, Elise;Suchan, Julia;Willmes, Klaus
目前的研究提供了一个概括性的帐户的解剖功能协会，以及连接的代表性代码的数字处理所建议的三重代码模型（TCM）的数字认知。通过评估在两个具体的和实质上不同的数字任务中，关于灰质定位以及白色物质束的神经网络，我们（1）考虑了额外的记忆相关皮层区域对算术事实检索至关重要的可能性（例如，海马体）;（2）详细说明了前额叶区在数字量处理中的功能参与，最后;（3）确定了这些解剖功能实例之间的联系，这些实例涉及数字量处理和算术事实提取，采用概率纤维跟踪。由此产生的修正案的TCM总结在一个示意性的更新，并讨论了可能的功能之间的相互作用的想法数量级处理和算术事实检索。
The current study provides a generalizable account of the anatomo-functional associations as well as the connectivity of representational codes underlying numerical processing as suggested by the triple code model (TCM) of numerical cognition. By evaluating the neural networks subserving numerical cognition in two specific and substantially different numerical tasks with regard to both grey matter localizations as well as white matter tracts we (1) considered the possibility of additional memory-related cortex areas crucial for arithmetic fact retrieval (e.g., the hippocampus); (2) specified the functional involvement of prefrontal areas in number magnitude processing, and, finally; (3) identified the connections between these anatomo-functional instantiations of the representations involved in number magnitude processing and arithmetic fact retrieval employing probabilistic fiber tracking. The resulting amendments to the TCM are summarized in a schematic update, and ideas concerning the possible functional interplay between number magnitude processing and arithmetic fact retrieval are discussed.