Consciousness & Circadian Rhythms
What is consciousness?
Awareness of internal & external stimuli)
What stage is known as falling asleep and how long does it last?
(Stage 1, 5-10 Minutes, light sleep).
What is sleep debt?
Accumulated lack of adequate sleep
Difficulty falling or staying asleep.
Insomnia
Which theory says dreams help sort and process the day’s experiences?
Information Processing Theory)
Name one internal and one external stimulus.
internal = thoughts, feelings.
external, sights, sound, etc
In what stage does our body feel the most relaxed and it is best to wake up during this stage?
Stage 2
How many hours should adults sleep per night?
(7–9 hours)
Newborns- 14/17 hours
infants-12-16 hours
teenager- 8-10
school aged- 9-11 hours
Sudden uncontrollable sleep attacks
Narcolepsy
Which theory focuses on disguised wish fulfillment
Freud’s Wish Fulfillment)
What hormone is released at night to make us sleepy?
Melatonin
What is the importance of getting enough sleep?
It helps rejuvenation of the body and brain. Not getting enough sleep leads to more wear and tear. It releases growth hormones, supports immune function, and repairs neurons
Name one evolutionary reason for sleep.
Protection during dangerous periods)
Temporary cessation of breathing during sleep
(Sleep apnea)
Which theory states that dreams have no meaning and are brain activity?
Neural Activation / Activation-Synthesis)
What happens to body temperature over a 24-hour circadian cycle?
(Rises in morning, peaks midday, dips afternoon, drops at night)
What happens to the pituitary gland during deep sleep?
Secretes growth hormone
Name one cognitive reason for sleep
Restores function, memory, decision-making
High arousal and appearance of being terrified during sleep
Night terrors)
True or False: Sleep talking happens only in REM sleep.
False
How does light affect melatonin levels
Bright light suppresses it; darkness triggers it
Order the stages of sleep correctly.
(1 → 2 → 3 → REM → repeat)
Name one physical reason for sleep
Growth, repair, immune function
Walking or talking during sleep happens during what type of sleep?
(Non-REM)