Table 2. Chronic (> 4 months) SA treatment of adult mice does not alter overall activity.

Variable	Control	Treated
XLD	30.4 ± 3.2	26.2 ± 5.0
XL	14.8 ± 2.2	11.6 ± 2.8
XD	46.1 ± 6.0	40.8 ± 8.3
XDD	35.3 ± 4.2	24.6 ± 5.0
PHLD	23.4 ± 0.5	22.7 ± 0.6
TAUDD	23.65 ± 0.07	23.48 ± 0.11
Age	300 ± 15	297 ± 14

Data table shows mean +/-SEM activity levels (average wheel revolutions per ten minutes), circadian timing of activity (hours) in LD and DD, and age (days). XLD = mean number of wheel turns in 12:12 LD per 10 minutes; XL = mean number of wheel turns in L during LD (per 10 minutes); xd = mean number of wheel turns in D during LD; XDD = mean number of wheel turns during DD (per 10 minutes); TAUDD = period of the circadian wheel-running rhythm during DD (in hours); PHLD = time of peak activity during LD. None of the variables were significantly different between control and treated mice.