Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Representative actograms showing re-entrainment to 8 h advanced and delayed light cycles for C57 and BTBR mice which were subsequently placed into constant darkness to unmask the true phase of the circadian clock after 3 days of exposure to the new LD cycle. The activity onset on day 3 of the shifted LD cycle was assessed both by determining the actual onset and the predicted onset based on a regression line fit to subsequent activity onsets in constant darkness.
*p < 0.05.
