A-The Tor gene RNA cycles only in the brains of Canton S in LD 12:12, reaching the highest level 4 h before the end of the night (ZT20) and the lowest 4 h after the beginning of the day (ZT4) (mean RQ +/- SE) [Kruskal-Wallis Test: H (5, N = 25) = 15,10543 p =, 0099; post hoc multiple comparison test: * < 0.05]. 