sleep

Question 1

what are the 3 principle measures of sleep and where are they placed

Answer 1

electro-encephalogram - head
electro-oculogram - eye
electro-myogram - neck

Question 2

what happens to the waves during the four stages of sleep EEG

Answer 2

progressive - increase in amplitude, decrease in frequency

Question 3

two main theories for sleep

Answer 3

recuperation theories - restores energy levels

evolutionary theories - evolved in humans to prevent accidents and predation at night

Question 4

is sleep related to body size/ temperature

Answer 4

no - sloths need 20 hrs a day and hardly move

Question 5

recuperation theories predict that with sleep deprivation…..

Answer 5

increases in physiological/behavioural disturbances

Question 6

what effect does preventing REM sleep have

Answer 6

acts as an antidepressant

Question 7

what is REM sleep

Answer 7

intervals during the night - rapid eye movement, more dreaming and bodily movement, faster pulse and breathing.

Question 8

what does deprivation of REM sleep cause

Answer 8

transient rebound - lengthening and increasing frequency and depth of REM sleep - occurs after periods of sleep deprivation.

Question 9

what structure of the brain is involved in sleep

Answer 9

thalamus

Question 10

damage to the anterior region of the hypothalamus

posterior region

Answer 10

= difficulty sleeping

= difficulty staying awake

Question 11

another area of the brain involved in sleep that regulates the wakefullness and sleep-wake transitions

Answer 11

the reticular system

Question 12

which isole transection is for slow wave sleep pattern and which id for normal sleep wake cycle
cerveau or encephale

Answer 12

cerveau = slow wave
encephale = normal sleep-wake cycle

Question 13

what is narcolepsy

Answer 13

relatively brief periods of sudden sleep