Key Terms
15.1
What Are Circadian Rhythms?
Chronobiology,
circadian,
ultradian,
circatidal,
infradian,
circannual,
circalunar,
rhythm,
period,
phase,
phase difference,
amplitude,
mesor,
frequency,
endogenous,
exogenous,
free running,
entrainment,
chronotype,
sleep hygiene,
subjective day,
subjective night,
phase response curve,
dead zone,
diurnal,
nocturnal
15.2
Where Are Rhythms in the Brain?
suprachiasmatic nucleus,
photoreceptors,
intrinsically photosensitive retinal ganglion cells (ipRGCs),
retinohypothalamic tract,
melanopsin,
arrhythmic,
geniculo-hypothalamic tract,
nonphotic,
retinorecipient core,
rhythmic shell,
melatonin,
transcription/translation feedback loop,
clock genes,
heterodimerize,
translocate
15.3
Regulation of Sleep
Process C,
Process S,
homeostatic,
glymphatic system,
Polysomnography,
electroencephalography,
electrooculography,
Rapid Eye Movement Sleep (REM),
electromyography,
non-REM (NREM),
Stage 1 non-REM,
Stage 2 non-REM,
Stage 3 non-REM,
sleep spindles,
delta sleep,
slow wave sleep,
delta waves,
flip flop switch,
insomnia
15.5
Circadian Rhythms and Society
Daylight savings time,
shift work,
chronic sleep deprivation,
chronic sleep deficiency,
sleep hygiene,
social jet lag,
chronotherapeutics,
chronomedicine