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Correction
for
Morton et al., J. Neurosci. 25 (1) 157-163.
The Journal of Neuroscience, April 13, 2005, 25(15):3994
 Previous Article
Corrections
In the article "Disintegration of the Sleep-Wake Cycle and Circadian Timing in Huntington's Disease," by A. Jennifer Morton, Nigel I. Wood, Michael H. Hastings, Carrie Hurelbrink, Roger A. Barker, and Elizabeth S. Maywood, which appeared on pages 157-163 of the January 5, 2005 issue, Figure 3B is mislabeled, and the corresponding description in the legend is incorrect as well. The correct version of Figure 3, as well as the legend, is printed here. In the third paragraph of Results, the last sentence, which describes this result, is also incorrect, and should read: "As a result, daytime activity level was 46 ± 6% of their nocturnal activity, whereas in the WT, daytime activity represented only 10 ± 3% of nocturnal activity."
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Figure 3. Increased daytime activity and impaired circadian control over rest-activity cycle in R6/2 mice. A, Daytime (white columns) and nighttime (black columns) activity levels in WT (n = 8) and R6/2 (n = 16) mice recorded for 7 d at 6 and 14 weeks of age on an LD schedule. B, Daytime activity measured as a fraction of nocturnal activity in WT (white columns) and R6/2 (gray columns) mice at 6 and 14 weeks of age. C, Amplitude of  2 periodgram of peak circadian periodicity (22-26 hr) measured in free-running WT (white columns) and R6/2 (gray columns) mice at 7 and 15 weeks of age. All data are mean ± SEM: **p < 0.01; post hoc Dunnett's t test. ns, Not significant.
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