语义记忆网络与舌尖现象之间的关系:来自大规模扩散MRI数据集的证据
Ziyi He, Xiaoyan Gong1, Cheng Wang2
1School of Psychology, Zhejiang Normal University, China.
Language and speech
|January 20, 2026
概括
更丰富的语义记忆网络可能会悖论地阻碍单词检索,导致更频繁的舌尖 (TOT) 经验. 这项研究将语义记忆结构与TOT事件联系起来.
科学领域:
- 认知神经科学 认知神经科学
- 神经成像是一种神经成像.
- 网络科学 网络科学
背景情况:
- 舌尖 (TOT) 现象通常被视为检索失败.
- 然而,它也可能表明语义记忆中的认知优势.
- 关于语义记忆和TOT的现有研究产生了相互矛盾的发现.
研究的目的:
- 研究语义记忆网络的结构性质与TOT体验频率之间的关系.
- 探索网络拓如何影响单词检索.
主要方法:
- 利用图形理论来分析语义记忆网络的结构拓.
- 在Cam-CAN存储库中使用了来自576名参与者 (18-87岁) 的扩散磁共振成像 (dMRI) 数据.
- 检查了全球和节点网络指标.
主要成果:
- 全球网络效率,本地效率,平均中心度和平均聚类系数正确预测了TOT率.
- 更高的TOT率与右后侧皮层 (pLTC) 和左后中前额皮层 (dmPFC) 的网络指标增加有关.
结论:
- 更广泛和相互连接的语义记忆网络可能会阻碍有效的单词检索.
- 这些发现表明,语义记忆的结构影响了TOT现象的发生.
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