本文選題：格蘭杰因果關系 + 新型因果關系�。� 參考：《杭州電子科技大學》2017年碩士論文

【摘要】：格蘭杰因果關系(GC)作為最著名的經(jīng)典因果關系方法之一,主要是用以表明事物之間的因果關系影響,并且廣泛應用在不同領域,例如經(jīng)濟學、神經(jīng)科學領域。近年來,胡三清教授提出了新的因果關系方法,被稱作新型因果關系(NC)。經(jīng)過對比,它要比格蘭杰因果關系更加合理和更讓人容易理解。在本文中,我們將格蘭杰因果關系方法和新型因果關系方法應用于共享意向實驗(SIE),共享意向認知行為是認知神經(jīng)科學和心理學中的一個重要的心理過程。我們使用了來自共享意向實驗的6組受試者頭皮腦電信號(EEG)來研究不同區(qū)域的因果關系流向。本文主要研究大腦皮層的九個區(qū)域:F3(額葉皮質的左側區(qū)域),Fz(額葉皮質的中央?yún)^(qū)域),F4(額葉皮質的右側區(qū)域),C3(中央皮質的左側區(qū)域),Cz(中央皮質的中央?yún)^(qū)域),C4(中央皮質的右側區(qū)域),P3(頂葉皮質的左側區(qū)域),Pz(頂葉皮質的中央?yún)^(qū)域),P4(頂葉皮質的右側區(qū)域),其被認為是用于觀察頭皮腦電信號(EEG)是否能夠產(chǎn)生關于較高認知功能中偶然同步腦活動的最佳位置。外國學者在此實驗基礎上研究在共享意向行為認知過程中F3、Fz、F4、Cz、C4、P3、Pz、P4區(qū)域和C3區(qū)域之間具有同步現(xiàn)象且具有很高的相關性。我們的研究結果表明這些區(qū)域之間具有以下結論:(1)在時域中,當兩個參與者都參與共享意向實驗的三個狀態(tài)((a)參與者的眼睛集中在彼此的手指運動(40?50s),(b)手指運動期間參與者眼神游離(60?70s),(c)手指運動期間(80?90s)參與者閉上眼睛)時,使用格蘭杰因果關系方法和新型因果關系方法都可以得出:從F3/Fz/F4/Cz/C4/P3/Pz/P4區(qū)域到C3區(qū)域有很強的定向連通性。(2)在時域中,在(a)(b)(c)三個狀態(tài)期間,新型因果關系方法比格蘭杰因果關系方法更清楚地顯示從F3/Fz/F4/Cz/C4/P3/Pz/P4區(qū)域到C3區(qū)域具有強的定向連通性。(3)在頻域中,(a)(b)(c)的三個狀態(tài)期間,F3/Fz/F4/Cz/C4/P3/Pz/P4區(qū)域到C3區(qū)域在8?13Hz節(jié)律中存在明顯的因果影響,即F3/Fz/F4/Cz/C4/P3/Pz/P4到C3的因果關系值明顯要比從C3到F3/Fz/F4/Cz/C4/P3/Pz/P4區(qū)域的因果關系值大,也就是說F3/Fz/F4/Cz/C4/P3/Pz/P4對C3有很強的因果關系影響。(4)在頻域中,新型因果關系方法比格蘭杰因果關系方法可以更好地揭示9個區(qū)域(F3、Fz、F4、C3、Cz、C4、P3、Pz、P4)在共享意向實驗中尤其在8~13 Hz節(jié)律中的因果關系流向即F3/Fz/F4/Cz/C4/P3/Pz/P4對C3具有很強的因果關系。
[Abstract]:As one of the most famous classical causality methods, Granger causality is mainly used to indicate the causality between things, and it is widely used in different fields, such as economics and neuroscience. In recent years, Professor Hu Sanqing has proposed a new causality method, which is called a new causality. By contrast, it is more reasonable and understandable than Granger causality. In this paper, we apply Granger causality method and new causality method to shared intention experiment. Shared intention cognitive behavior is an important psychological process in cognitive neuroscience and psychology. We used scalp EEG signals (EGG) from six groups of participants in a shared intention experiment to study the causal flow in different regions. In this paper, we studied nine regions of the cerebral cortex: F3 (the left region of the frontal cortex) FZ (the central region of the frontal cortex, F4), the right region of the frontal cortex (the right region of the frontal cortex, C3), and the left region of the central cortex, CzZC (the central cortex of the central cortex, C4). The right region of the parietal cortex, P3 (the left region of the parietal cortex), P4 (the right region of the parietal cortex), is thought to be used to observe whether the scalp EEG signal (EGG) can produce a coincidence in relation to higher cognitive function. The best location for walking brain activity. On the basis of this experiment, foreign scholars have studied that there is a high correlation and synchronization between the C _ 3 region and the C _ 3 region in the process of shared intentional behavior cognition. Our results show that there is the following conclusion between these regions: 1) in time domain, When both participants participated in the three states of shared intention experiment) the participants' eyes were concentrated on each other's finger movements (40 / 50 s / b) the participants' eyes were free 60 / 70 s / c during finger exercise) and the participants' eyes were closed during finger exercise). Using both the Granger causality method and the new causality method, it can be concluded that from F3 / FZ / F4 / CzC4 / P3 / P4 to the C3 region with very strong directional connectivity, in the time domain, during the three states of F3 / FZ / F4 / CzC4 / P3 / P4, The new causality method shows more clearly than the Granger causality method that from the F3 / FZ / F4 / F4 / CzC4 / P3 / P4 region to the C3 region with strong directional connectivity, there is a significant causal effect in the 813Hz rhythm in the F3 / FZ / F4 / C4 / P3PzP 4 region to the C3 region during the three states in the frequency domain. That is, the causality value of F3 / FZ / F4 / CzC4 / P3 / P4 to C3 is significantly larger than that of the region from C3 to F3 / F4 / F4 / CzC4 / P3 / P4, which means that F3 / FZ / F4 / P4 / P4 has a very strong causal effect on C3. Compared with the Granger causality method, the new causality method can better reveal the causality direction of F3 / Fzr / F4 / P4 / P3 / P4 for C3 in the shared intention experiment, especially in the 813 Hz rhythm (F3 / FZ / F4 / CzC4 / P3 / P4).
【學位授予單位】：杭州電子科技大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：R318.0;O212.1

【參考文獻】

相關期刊論文 前2條

1 賈欣欣;;格蘭杰因果關系在神經(jīng)科學領域的發(fā)展及缺陷[J];電子科技;2015年08期

2 王鳳瑛;張麗麗;;功率譜估計及其MATLAB仿真[J];微計算機信息;2006年31期

相關博士學位論文 前1條

1 施錦河;運動想象腦電信號處理與P300刺激范式研究[D];浙江大學;2012年

相關碩士學位論文 前6條

1 薛紀勘;因果關系在長爪沙鼠聽覺刺激下認知行為的應用[D];杭州電子科技大學;2016年

2 賈欣欣;塊對塊因果關系比較研究[D];杭州電子科技大學;2015年

3 王輝;因果關系在探求大腦效應連接中的應用[D];杭州電子科技大學;2015年

4 田強強;運動想象分類算法比較研究[D];杭州電子科技大學;2013年

5 王月榮;睡眠弱信號實時特征提取研究[D];蘭州大學;2010年

6 鄒繼東;基于腦意識任務的腦機接口設計[D];江蘇大學;2006年

，

本文編號：2002859