Module 3: Sleep Biology Flashcards
How much time do Newborns spend asleep?
70% of their day
At what time of day is growth hormone released?
Mainly released at night time
What are the two most accepted theories of the function of sleep?
(1) to conserve energy by the reduction of our metabolic rate (2) serve as a period of restoration
In what stage of sleep does memory consolidation occur
SWS (Slow Wave Sleep)
Longer duration of SWS (Slow Wave Sleep) is associated with what type of memory?
Procedural Memory (memories for skills that are honed by repetition)
Sleep functions are broadly split into two groups, called what?
(1) Psychological/neurological functions (2) physiological functions
What are the psychological/neurological functions of sleep?
1) Memory consolidation
2) Neuronal connections
3) A period of restoration
4) improving mood
5) contribution to cognitive function
6) Improves memory restoration
What are the physiological functions of sleep?
1) lowers metabolic rate, conserves energy
2) cell growth and repair
3) optimizes physiological homeostasis
4) release of hormones
5) improves energy levels
6) boosts immunity
There are two mechanism regulating sleep, what are they?
Circadian Rhythm and Homeostatic Sleep Pressure
Nighttime sleep is partly regulated by what?
Circadian rhythm
Naps are mostly regulated by what?
Sleep pressure
What is sleep pressure?
The increasing drive to fall asleep as you spend more time awake
What are the influences or cues that influence the circadian rhythm called?
Zeitgebers
Where is the master body clock located?
In the Suprachiasmatic nucleus in the hypothalamus
What are environmental influences on circadian Rhythmicity? (4)
1) light
2) noise
3) habits and behaviors
4) temperature
