Endogenous Pacemakers and Exogenous Zeitgebers 2

Exogenous zeitgebers and the sleep/wake cycle

- Zeitgeber = 'time giver'

- Exogenous zeitgeber = external factors in environment that reset biological clocks through entrainment

- In absence of external cues the clock continues in a pattern

Light

- Can reset the endogenous pacemaker the SCN

- Has an indirect influence on key processes in the body…