Gender differences in brain networks during verbal Sternberg tasks: A simultaneous near-infrared spectroscopy and electro-encephalography study

被引:20
作者
Gao, Chenyang [1 ,2 ]
Sun, Jinyan [3 ]
Yang, Xiaoquan [1 ,2 ]
Gong, Hui [1 ,2 ]
机构
[1] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan, Hubei, Peoples R China
[2] Huazhong Univ Sci & Technol, Key Lab Biomed Photon, Minist Educ, Wuhan, Hubei, Peoples R China
[3] Guangdong Med Univ, Dept Biomed Engn, Dongguan, Peoples R China
关键词
electro-encephalography; gender; near-infrared spectroscopy; working memory; WORKING-MEMORY; PREFRONTAL CORTEX; EEG; ACTIVATION; FMRI; HEMODYNAMICS; CONNECTIVITY; PERFORMANCE; ENVIRONMENT; COHERENCE;
D O I
10.1002/jbio.201700120
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
Gender differences in psychological processes have been of great interest in a variety of fields including verbal fluency, emotion processing and working memory. Previous studies suggested that women outperform men in verbal working memory (VWM). However, the inherent mechanisms are still unclear. To obtain a deeper insight into the gender differences in brain networks in VWM, this study used near-infrared spectroscopy (NIRS) and electro-encephalography (EEG) simultaneously to investigate gender-related brain networks during verbal Sternberg tasks. NIRS results confirmed that women surpass men in VWM from the perspective of both brain activation and connectivity. Results of EEG (effective connectivity and event-related spectral power) showed that men tend to use a more visuospatial strategy to encode memory. In addition, novel analysis methods of brain networks can provide useful information about the gender specifics of brain functions. Gender-related pseudo-color maps constructed from all channels of average HbO(2) activity during low- and high-load tasks (from 0 to 6 seconds after beginning).
引用
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页数:10
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