Gola M., Magnuski M., Szumska I., Wróbel A., 2013, EEG beta band activity is related to attention and attentional deficits in the visual performance of elderly subjects. Int. J. Psychophysiol. 89(3): 334-341, doi: 10.1016/j.ijpsycho.2013.05.007 (online)

Figure: Mean reaction times (error bars indicates SD). B: Comparisons of all behavioral responses types between the groups of young, elderly high, and elderly low performing subjects. C: EEG signal power spectra calculated for trials ending with correct responses (green line; assumed as representing an attentive state) and trials with no response (black; inattentive state) for all younger and older high performing subjects. Black bars indicate a p b .01 level of significance. 

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