Class Notes (1,100,000)
CA (650,000)
UW (20,000)
PSYCH (2,000)
PSYCH101 (800)
Lecture 4

Lecture 4 - States of Consciousness SLEEP Scientific History Sleep Onset Functions of Sleep Sleep as Restoration Sleep for Survival DREAMS Content of Dreams Physiology of Dreams Dreams as Spiritual Communication Dreams as Wish-Fulfillment Dre


Department
Psychology
Course Code
PSYCH101
Professor
Richard Ennis
Lecture
4

This preview shows page 1. to view the full 5 pages of the document.
STATES OF CONSCIOUSNESS:
SLEEP AND DREAMS
Lecture Outline
SLEEP
Scientific History
Sleep Onset
Functions of Sleep
Sleep as Restoration
Sleep for Survival
DREAMS
Content of Dreams
Physiology of Dreams
Dreams as Spiritual Communication
Dreams as Wish-Fulfillment
Dreams as Neurological Goblygook
Dreams as Cognitive Maintenance
Evidence for Neurological and Cognitive Theories
You're Reading a Preview

Unlock to view full version

Only page 1 are available for preview. Some parts have been intentionally blurred.

Lecture Notes
Poets wrote about sleep like psychologists
Sleep was restorative idea -> repair from wear and tear
Scientists too same view until 1950s
o During certain periods of the night, people’s eyes started moving irradically (REM)
o REM didn’t fit restorative idea -> scientists changed their view
Sleep growth hormone released, as well as a hormone to synthesize protein and muscles
Physically-speaking, seems restorative
o Inside the brain, things are different
A
When going to sleep:
o Breathing, metabolism, heart slow down
o Vision goes first, hearing shortly after
o Rapidly the others disconnect too
Muscles become immobilized
Hypnic jerk
o Whole body vibrates
o Occurs just as you’re going to sleep
o Accompanied by hypnogogic hallucinations
Suspended sort of reality
Not bizarre like dreams
Often involve daily things
Colour red is dominant
Sensation of falling/missing a step -> could wake you up
Myollonic kick
o Muscle spasms
A
As you fall deeper and eeper into sleep, things change
Stage 1 very easy to wake you, brain wave activity changing
Stage 2 bursts of brainwave activity (muscle spasms)
Stage 3/4 deep deep sleep, very hard to arouse someone, low frequency waves in brain
activity, less than an hour to get into
REMEMBER GRAPH WITH NO REM SLEEP
Stage 1 brain patterns mimic those of being awake
During sleep, however, brain waves are mixed and confusing -> random?
During this period, brain gets bather in acetocoline (memory and memory storage)
Stage 1 sleep = REM
o Reason why researchers went looking for answers
Amount of physical tiredness = amount of sleep
REM sleep = dreams
o Typical to have REM session prior to awakening
If you have to pee, your body will wake you during stage 1
A
One of reasons we disconnect from world is to restore
Kids have to sleep more because they’re growing
o Very active during awake period
A
You're Reading a Preview

Unlock to view full version