PSYC 210 - Biological Rhythms Flashcards
The __________ rhythm is a yearly, migratory cycle.
circannual
The _________ rhythm is longer than a day, monthly, such as the menstrual cycle.
infradian
The __________ rhythm is a cycle that happens every 24 hours, daily, such as the human-sleep-wake cycle.
circadian
_________ rhythm is a cycle that happens within a few hours, or a day, such as meals or sleep cycles.
ultradian
Humans and animals have ________ for biological rhythms.
endogenous clocks
Cues that synchronize biological rhythms
zietgeber
the process of synchronizing an endogenous biological rhythm to the rhythm of an environmental cue
entrainment
Humans and animals show __________ despite living in a constant light or constant dark environment.
biological rhythms
spontaneous rhythm in environments without changes in lightness
free running rhythm
Human free running circadian rhythm is on average ______ than 24 hours.
greater
With exposure to sunlight during the day and darkness at nighttime, animals and humans express an _________ circadian rhythm.
entrained
During constant light or constant dark, animals express a _________ circadian rhythm.
free running
The ______ of the hypothalamus is the master oscillator of biological rhythms.
SCN
Individual ______ neurons fire rhythmically in a tissue culture.
SCN
Rhythmic SCN neuronal activity is __________.
genetically programmed