Zeitgeber-schedule dependent resynchronization of circadian rhythms in nocturnal mammals (Primates and Chiroptera).
Changing the L:D time ratio of an entraining light-dark regime leads to characteristic alterations of the resynchronization behaviour of the circadian activity rhythms in night monkeys (Aotus trivirgatus) and African fruit bats (Rousettus aegyptiacus) after 8 h advance and delay shifts of the LD-Zeitgeber. Reduced speed of re-entrainment and occurrence of antidromic resynchronization point to a lower Zeitgeber strength of 24-h LD-cycles with a prolonged D-phase.
D000818:Animals; D001029:Aotus trivirgatus / Q000502:physiology*; D002427:Cebidae / Q000502:physiology*; D002685:Chiroptera / Q000502:physiology*; D002940:Circadian Rhythm; D008027:Light; D010507:Periodicity