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In the study of chronobiology, entrainment refers to the synchronization of a biological clock to an environmental cycle. An example is the interaction between circadian rhythms and environmental cues, such as light and temperature. Entrainment helps organisms adapt their bodily processes according to the timing of a changing environment. [1]
Brainwave entrainment is a colloquialism for 'neural entrainment', [25] which is a term used to denote the way in which the aggregate frequency of oscillations produced by the synchronous electrical activity in ensembles of cortical neurons can adjust to synchronize with the periodic vibration of external stimuli, such as a sustained acoustic ...
Within each cycle, the time period during which the process is more active is called the acrophase. [4] When the process is less active, the cycle is in its bathyphase or trough phase. The particular moment of highest activity is the peak or maximum; the lowest point is the nadir.
DSPT occurs when one sleeps late and is unable to wake up early, resulting in a lack of entrainment to a typical working schedule. There are a number of methods to help resolve DSPT, including white light exposure in the morning and light restriction after 4:00 p.m., light masks, and blue light exposure in the morning. [23]
Entrainment (chronobiology), the alignment of a circadian system's period and phase to the period and phase of an external rhythm; Entrainment (engineering), the entrapment of one substance by another substance; Entrainment (hydrodynamics), the movement of one fluid by another; Entrainment (meteorology), a phenomenon of the atmosphere
Entrainment in the biomusicological sense refers to the synchronization (e.g., foot tapping) of organisms to an external perceived rhythm such as human music and dance. Humans are the only species for which all individuals experience entrainment, although there are documented examples of entrained nonhuman individuals.
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Aschoff provided a strong foundation for the field of chronobiology through his research on circadian rhythms and entrainment in many different organisms such as rats, mice, birds, macaques, monkeys, and humans. His early research focused on understanding the properties of circadian rhythms and how these rhythms can change in response to stimuli.