3[1]Duffy F H, Albert M S, McAnulty G, Garvey A J. Age-related differences in brain electrical activity of healthy subjects[J]. Ann Neurol, 1984, 16:430-438.
4[2]Williamson P C, Merskey H, Morrison S, Rabheru K, Fox H, Wands K, Wong C, Hachinski V. Quantitative elecroencephalographic correlates of cognitive declice in normal elderly subjects[J]. Archives of Neurology, 1990, 47: 1185-1188.
5[3] Gratton G, Villa A E P, Fabiani M, Colombis G, Palin E, Bolcioni G, Fiori M G. Functional correlates of a three-component spatial model of the alpha rhythm[J]. Brain Research, 1992, 582: 159-162.
6[4]Bosel R. Slow alpha in the EEG power spectrum as an indicator for conceptual arousal. Zur Exp. Angew[J]. Psycho, 1992, 39: 372-395.
7[5]Klimesch W, Schimke H, Ladurner G, Pfurtscheller G. Alpha frequency and memory performance[J]. Journal of Psychophysiology, 1990, (4): 381-390.
8[6]Klimesch W. Memory processes described as brain oscillations in the EEG-alpha and theta bands[J]. Psychology, 1995, 11:134-143.
9[7]Klimesch W, Schimke H, Pfurtscheller G. Alpha frequency, cognitive load and memory performance[J]. Brain Topography, 1993, (5): 241-251.
10[8]Pfurtscheller G, Klimesch W. Event-related desynchroniation during motor behavior and visual information processing[J]. In: C H M Brunia, G Mulder， M N Verbaten （Eds.). Event-related brain research, 1991，（EEG Suppl 42）: 58-65.
