Juárez J, Corsi-Cabrera M
Departamento de Fisiología, Universidad Nacional Autónoma de México, D.F., México.
Brain Res Bull. 1995;38(2):149-51. doi: 10.1016/0361-9230(95)00081-o.
EEG activity was recorded from left and right parietal cortex in adult male and female rats on a daily basis during 3 days. Absolute and relative power and interhemispheric correlation of the EEG activity were calculated and compared between males and females. Interhemispheric correlation of the theta rhythm was higher in males than in females. Interhemispheric asymmetry in absolute power was larger in males, who showed higher power in the right than in the left parietal for all bands except for delta. Beta2 relative power was significantly higher in females. These results indicate greater functional asymmetry and higher interhemispheric coupling of the parietal cortex in male than in female rats as assessed by cortical EEG activity.
在3天的时间里，每天记录成年雄性和雌性大鼠左右顶叶皮层的脑电图活动。计算并比较了雄性和雌性大鼠脑电图活动的绝对功率、相对功率和半球间相关性。雄性大鼠θ节律的半球间相关性高于雌性。雄性大鼠绝对功率的半球间不对称性更大，除δ波外，所有频段在右侧顶叶的功率均高于左侧。雌性大鼠的β2相对功率显著更高。这些结果表明，通过皮层脑电图活动评估，雄性大鼠顶叶皮层的功能不对称性更大，半球间耦合更高。
