Lecture 10

Question 1

what is consciousness

Answer 1

AWARNESS or ourselves and/or environment
- a spotlight on an aspect of our daily life
- external or internal focus
- past, present, future

Question 2

what age does circadian rhythm change

Answer 2

around 20 earlier in women than men

Question 3

Melatonin is a ______inducing hormone. Production _____ with light and _____ as it gets dark. This is controlled by the ______ _____

Answer 3

sleep-inducing hormone
Production decreases with light (morning) and increases as it gets dark out

Question 4

Adenosine is an _______ neurotransmitter, causes drowsiness
* ______during day, ______during night

Answer 4

inhibitory
Accumulates
declines

Question 5

Blindness and CR: mechanism. How many blind people are desynchronized? How is it treated

Answer 5

50%
melatonin or melatonin agonist

Question 6

effects of sleepdeprivation

Answer 6

-fatigue
-death
-impaired concentration
-poor learning and memory
-increase appetite and eating
-irritability

Question 7

why do we sleep

Answer 7

1. Protective: It’s dangerous to be out at night
2. Restorative: when we don’t have to process the
   outside world, our body/brain has time to
   repair itself
3. Cognitive:
   a) memory better after several hours sleeping than
   several hours awake
   b) Creative insight, thinking ‘outside the box’ more
   likely after sleep
4. Growth: GH released by pituitary gland during
   sleep

Question 8

how long is the sleep cycle

Answer 8

every 90 minutes

Question 9

What wave stage?
Regular. 8-12 Hz. Awake but relaxed

Answer 9

Alpha waves

Question 10

Stage 1-2. irrefular, 5-8 hz

Answer 10

theta wave

Question 11

Regular
* High-amplitude
* Slow (1.5-4 Hz)

Answer 11

slow wave sleep
delta wave

Question 12

15-40 Hz
irregular
stage 5

Answer 12

REM