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Cross-frequency Phase Coupling of Brain Oscillations and Relevance Attribution as Saliency Detection in Abstract Reasoning
Neuroscience Research ( IF 2.4 ) Pub Date : 2020-05-01 , DOI: 10.1016/j.neures.2020.05.012
Aleksandra Miasnikova 1 , Gleb Perevoznyuk 2 , Olga Martynova 3 , Mikhail Baklushev 4
Affiliation  

reasoning is associated with the ability to detect relations among objects, ideas, events. It underlies the understanding of other individuals' thoughts and intentions. In natural settings, individuals have to infer relevant associations that have proven to be reliable or precise predictors. Salience theory suggests that the attribution of meaning to stimulus depends on their contingency, saliency, and relevance to adaptation. So far, subjective estimates of relevance have mostly been explored in motivation and implicit learning. Mechanisms underlying formation of associations in abstract thinking with regard to their subjective relevance, or salience, are not clear. Applying novel computational methods, we investigated relevance detection in categorization tasks in 17 healthy individuals. Two models of relevance detection were developed: a conventional one with nouns from the same semantic category, an aberrant one based on an insignificant common feature. Control condition introduced non-related words. The participants were to detect either a relevant principle or an insignificant feature to group presented words. In control condition they inferred that the stimuli were irrelevant to any grouping idea. Cross-frequency phase coupling analysis revealed statistically distinct patterns of synchronization representing search and decision in the models of normal and aberrant relevance detection. Significantly distinct frontotemporal functional networks with central and parietal components in the theta and alpha frequency bands may reflect differences in relevance detection.

中文翻译:

抽象推理中作为显着性检测的脑震荡和相关归因的交叉频率相位耦合

推理与检测对象、想法、事件之间关系的能力有关。它是理解其他人的想法和意图的基础。在自然环境中,个人必须推断已被证明是可靠或精确预测因子的相关关联。显着性理论表明,意义对刺激的归因取决于它们的偶然性、显着性和与适应的相关性。到目前为止,相关性的主观估计主要在动机和内隐学习中进行了探索。抽象思维中联想形成的潜在机制,就其主观相关性或显着性而言,尚不清楚。应用新的计算方法,我们研究了 17 名健康个体分类任务中的相关性检测。开发了两种相关性检测模型:一种具有相同语义类别名词的常规名词,一种基于微不足道的共同特征的异常名词。控制条件引入非相关词。参与者将检测相关原则或微不足道的特征来分组呈现的单词。在控制条件下,他们推断刺激与任何分组想法无关。跨频相位耦合分析揭示了统计上不同的同步模式,代表了正常和异常相关性检测模型中的搜索和决策。在 theta 和 alpha 频带中具有中央和顶叶成分的显着不同的额颞叶功能网络可能反映了相关性检测的差异。基于一个微不足道的共同特征的异常的。控制条件引入非相关词。参与者将检测相关原则或微不足道的特征来分组呈现的单词。在控制条件下,他们推断刺激与任何分组想法无关。跨频相位耦合分析揭示了统计上不同的同步模式,代表了正常和异常相关性检测模型中的搜索和决策。在 theta 和 alpha 频带中具有中央和顶叶成分的显着不同的额颞叶功能网络可能反映了相关性检测的差异。基于一个微不足道的共同特征的异常的。控制条件引入非相关词。参与者将检测相关原则或微不足道的特征来分组呈现的单词。在控制条件下,他们推断刺激与任何分组想法无关。跨频相位耦合分析揭示了统计上不同的同步模式,代表了正常和异常相关性检测模型中的搜索和决策。在 theta 和 alpha 频带中具有中央和顶叶成分的显着不同的额颞叶功能网络可能反映了相关性检测的差异。在控制条件下,他们推断刺激与任何分组想法无关。跨频相位耦合分析揭示了统计上不同的同步模式,代表了正常和异常相关性检测模型中的搜索和决策。在 theta 和 alpha 频带中具有中央和顶叶成分的显着不同的额颞叶功能网络可能反映了相关性检测的差异。在控制条件下,他们推断刺激与任何分组想法无关。跨频相位耦合分析揭示了统计上不同的同步模式,代表了正常和异常相关性检测模型中的搜索和决策。在 theta 和 alpha 频带中具有中央和顶叶成分的显着不同的额颞叶功能网络可能反映了相关性检测的差异。
更新日期:2020-05-01
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