The neural correlates of semantic control revisited.
The neural correlates of semantic control revisited.
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DOI：
10.1016/j.neuroimage.2020.117444
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发表时间：
2021-01-01
期刊：
影响因子：
5.7
通讯作者：
Jackson RL
中科院分区：
文献类型：
--
作者：
Jackson RL
一个多模态语义控制网络描绘了正式的元分析。语义控制招募下、内侧额叶和后颞叶皮层。后颞叶皮层大范围受累，顶叶区域无受累。语义控制是左偏，但区域显示差异偏侧化。语义控制区位于更广泛的语义网络的背景下。语义控制是语义认知的一个重要组成部分，是根据语境的需要有选择地获取和处理有意义信息的能力。精确的语义控制的神经相关性是有争议的，特别是围绕顶叶参与，空间范围的后颞贡献和网络偏侧化的辩论。在这里，语义控制被重新审视，利用改进的分析技术和十年的额外数据来完善我们对网络的理解。925个峰超过126对比的荟萃分析照亮了左聚焦网络组成的额下回，后颞中回，后颞下回和背内侧前额叶皮层。这扩大了颞区牵连，并发现没有顶叶参与。虽然左侧偏侧的整体，相对偏侧不同的受牵连的地区。支持性分析证实了语义控制网络的多模态性质，并将其置于语义认知所涉及的更广泛的区域内。
A multimodal semantic control network was delineated with formal meta-analyses. Semantic control recruits inferior and medial frontal and posterior temporal cortex. A large extent of posterior temporal cortex was implicated and no parietal regions. Semantic control is left-lateralised but regions show differential lateralisation. The semantic control regions were situated in the context of the wider semantic network. Semantic control, the ability to selectively access and manipulate meaningful information on the basis of context demands, is a critical component of semantic cognition. The precise neural correlates of semantic control are disputed, with particular debate surrounding parietal involvement, the spatial extent of the posterior temporal contribution and network lateralisation. Here semantic control is revisited, utilising improved analysis techniques and a decade of additional data to refine our understanding of the network. A meta-analysis of 925 peaks over 126 contrasts illuminated a left-focused network consisting of inferior frontal gyrus, posterior middle temporal gyrus, posterior inferior temporal gyrus and dorsomedial prefrontal cortex. This extended the temporal region implicated, and found no parietal involvement. Although left-lateralised overall, relative lateralisation varied across the implicated regions. Supporting analyses confirmed the multimodal nature of the semantic control network and situated it within the wider set of regions implicated in semantic cognition.
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