PSYC 1013 Lecture Notes - Lecture 6: Continuous Positive Airway Pressure, Circadian Rhythm, Sleep Deprivation
Document Summary
Consciousness i a perso(cid:374)"s su(cid:271)je(cid:272)ti(cid:448)e a(cid:449)are(cid:374)ess, i(cid:374)(cid:272)ludi(cid:374)g thoughts per(cid:272)eptio(cid:374)s, e(cid:454)perie(cid:374)(cid:272)es of the world, and self-awareness. Thoughts and perceptions are constantly adapting to new situations. That are neatly adapted to the cycles in their environment eg bears hibernating in the winter months. Behaviour that happens on a yearly basis. Infradian rhythm which is any rhythm that occurs over a period of time longer than a day menstrual cycle. Ultradian rhythms the more frequent biological rhythms. Circadian rhythms are internally driven daily cycles of approx. Tendency to be asleep or awake at certain times. Feel hunger during specific times of the day. Concentrate better during certain times of the day. Suprachiasmatic nucleus (scn) of the hypothalamus cells in the retina of the eye relay messages about light levels in the environment to the scn. Communicates signals about light levels with the pineal gland. Pineal gland releases a hormone called melatonin which peaks in concentration at nighttime and is reduced during wakefulness.
