Social and Behavioral Sciences Commons^™

The Masking Effects Of Light On Circadian Activity And Sleep Rhythms In Drosophila Melanogaster, Aaron David Sheppard

Legacy Theses & Dissertations (2009 - 2024)

As organisms evolved, so did mechanisms for synchronizing behavior to the environmental light-dark cycle. Two main mechanisms provide this link: the synchronization of an endogenous circadian oscillator with the exogenous environment (entrainment), and a process called "masking", which functions independently from the circadian clock. Organisms have evolved these endogenous and exogenous mechanisms to adapt to the light-dark cycle of their niches in order to integrate their behavioral and physiological responses with predictable changes in their environments, in this case changes involving the daily light-dark cycle.