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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Coherent concepts are computed in the anterior temporal lobes
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Coherent concepts are computed in the anterior temporal lobes

机译：在前颞叶计算相干概念

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摘要

In his Philosophical Investigations, Wittgenstein famously noted that the formation of semantic representations requires more than a simple combination of verbal and nonverbal features to generate conceptually based similarities and differences. Classical and contemporary neuroscience has tended to focus upon how different neocortical regions contribute to conceptualization through the summation of modality-specific information. The additional yet critical step of computing coherent concepts has received little attention. Some computational models of semantic memory are able to generate such concepts by the addition of modality-invariant information coded in a multidimensional semantic space. By studying patients with semantic dementia, we demonstrate that this aspect of semantic memory becomes compromised following atrophy of the anterior temporal lobes and, as a result, the patients become increasingly influenced by superficial rather than conceptual similarities.
机译：维特根斯坦（Wittgenstein）在其《哲学研究》中著名地指出，语义表示的形成不仅仅需要语言和非语言特征的简单组合来产生基于概念的异同。古典和当代神经科学趋向于集中于不同的新皮质区域如何通过特定于模态的信息的汇总来促进概念化。计算一致概念的附加但关键的步骤很少受到关注。语义记忆的某些计算模型能够通过添加在多维语义空间中编码的模态不变信息来生成此类概念。通过研究患有语义性痴呆的患者，我们证明了语义记忆的这一方面在前颞叶萎缩之后受到损害，结果，患者变得越来越受表象而非概念相似性的影响。

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