a) Average amount of relative activity (see Methods for details) during each third of alpha, as determined from individual relative activity waveforms under free running conditions. b) Average waveforms for each group, adjusted to tau period. Time point 0 represents CT12. All error bars represent mean ± SEM.
Casiraghi et al. Journal of Circadian Rhythms 2010 8:4 doi:10.1186/1740-3391-8-4