工作记忆中后颞叶与其他脑区的同步效应

doi:10.3969/j.issn.0258-8021. 2015. 02.007

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Abstract In this paper, the coherence method of electroencephalogram (EEG) was employed to establish functional networks to study the main areas which are responsible for the working memory (WM) —— the role and function of posterior temporal lobes presented in the processes of different WM modes. Twelve subjects performed our experiments which required the retention of either verbalizable strings of letters or abstract drawings. These two paradigms were designed specifically for corresponding to the two components of working memory —phonological loop and visualspatial sketch pad respectively. A 19channels EEG signal was recorded, based on which the coherent coefficient matrices were calculated. In consequence, the brain functional networks were constructed and discussed in this paper. Results showed that, compared with the resting state, for both phonological loop and visualspatial sketch pad, significantly increased θ (4～7 Hz) coherence values were detected between posterior temporal lobes (T5, T6) and other brain regions (P<005). This result suggested between the posterior temporal lobes and other brain regions the θ synchronization phenomenon could be observed during the process of working memory. Furthermore, the degrees of nodes T5 and T6 were largely different in the functional networks of the two components. However, both the degrees of T5 and T6 were bigger than other nodes, suggesting the left and right posterior temporal lobes may serve as specialized regions for the phonological loop and visualspatial sketch pad respectively.

Key words： working memory posterior temporal lobes coherent synchronization functional network

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	Mei Dandan Yan Zheng Huang Ruimin^*

Cite this article:

Mei Dandan Yan Zheng Huang Ruimin^*. Synchronization between Posterior Temporal Lobe and other Brain Regions in the Working Memory[J]. journal1, 2015, 34(2): 176-183.

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http://cjbme.csbme.org/EN/ 10.3969/j.issn.0258-8021. 2015. 02.007 OR http://cjbme.csbme.org/EN/Y2015/V34/I2/176

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