endogenous oscillator การใช้

• To investigate the properties of natural endogenous oscillators, Aschoff exposed organisms to constant conditions without Zeitgeber cues ( either constant light or constant darkness ).
• In 1960, Aschoff coined the term " Zeitgeber " ( from German for " time giver " or " synchronizer " ) to refer to external, environmental cues that synchronize an endogenous oscillator to the environmental cycle.