STATES OF CONSCIOUSNESS. What is consciousness? A state of awareness…. –Includes the person’s feelings, sensations, ideas, and perceptions.

Slides:



Advertisements
Similar presentations
Altered States of Consciousness
Advertisements

Sleep.
Unit 4: How do our neurons work together to control behaviors?
Module 7 Sleep and Dreams.
 What is Consciousness?  What Causes Consciousness?  States of Consciousness  Sleep  Hypnosis.
SLEEP.
Sleep – the most common ASC
Chapter 4 States of consciousness BY: DR. UCHE AMAEFUNA (MD)
The Sleep Cycle Unit 3 Lesson 2. Objectives: Define sleep Define sleep Identify the main theories of sleep Identify the main theories of sleep Differentiate.
Sleep Notes AP Psychology.
Introduction to Psychology: Kellogg Community College, Talbot Chapter 5 Chapter 5 States of Consciousness.
Sleep and Dreams Psychology.
Chapter 5 States of Consciousness. Levels of Consciousness  Conscious: Brain processes of which we are aware (feelings, thoughts, perceptions)  Preconscious:
SLEEP TIME!!! (ZZZ) §No demonstrations, please! §SLEEP- The minimal level of awareness and processing that takes place. §A passive state of consciousness.
Variations in Consciousness A.P. Psychology 12/18/2009.
Consciousness, Sleep, & Dreams. Today’s Goal  Explain the sleep cycle and why sleep is important.
Chapter 7 States of Consciousness. Consciousness  Consciousness  our awareness of ourselves and our environments.
FREUD’S LEVELS OF CONSCIOUSNESS Unconscious level: selfish needs, irrational wishes, immoral urges, fears, violent motives, unacceptable desires, shameful.
Your brain is made up of billions of brain cells called neurons, which use electricity to communicate with each other. The combination of millions of neurons.
Variations in Consciousness Chapter 5. On the Nature of Consciousness  consciousness- the awareness of internal and external stimuli  three levels of.
Consciousness & the Two-Track Mind. What is the difference between the brain and the mind? “The mind is what the brain does”
Consciousness Chapter 4.
Stages of Consciousness. History Wundt - __________________ James – ___________________ Behaviorism - _______________ Consciousness – able to study using.
What is Consciousness? Our awareness of ourselves and environment (slippery concept)
States of Consciousness Chapter Seven. I. Consciousness.
List  What are 5 things that you absolutely must do on a daily basis?
States of Consciousness Conscious Controlled Process Automatic Process Daydreaming Unconscious Sleep Altered States.
 Consciousness. Overview  Consciousness : State of awareness of the internal and external world.  State of Awareness  Knowledge of Thoughts  External.
Consciousness & the Two-Track Mind. What is the difference between the brain and the mind? “The mind is what the brain does”
Sleep Chapter 7 Key Terms: Consciousness, REM Sleep, Insomnia, Narcolepsy, Sleep Apnea.
SLEEP Chapter 5 Huffman/Ch 6 Nairne States of Consciousness.
Counsciousness REM sleep Circadian rhythm Insomnia Sleep apnea Narcolepsy Nightmares Night terrors Sleepwalking.
Sleep Stages Professor Ken Daley Department of Exercise and Sport Science.
Consciousness – our awareness of ourselves and our environment. States of Consciousness Consciousness is the CEO of the mind. It is nature’s way of keeping.
Variations in Consciousness. Levels of Awareness Controlled Automatic Daydreaming Altered states (meditation, hypnosis, drug use) Sleep Freud’s Unconscious.
States of Consciousness Consciousness an organism’s awareness of its own self and surroundings; exists along a continuum, ranging from high level awareness.
Altered States of Consciousness Sleep & Dreaming May 2015.
Sleep and Dreams. I. Facts about Sleep  One-Third of our adult lives are spent in sleep  Experts recommend 8 hours of sleep a night –A typical adult.
Body Rhythms and Mental States Chapter 3. Consciousness – The brain’s awareness of internal and external stimulation (*filter or interpretation of events.
CP PSYCHOLOGY Altered States of Consciousness Sleep Mrs. Bradley Newark High School.
Chapter 5. Consciousness Consciousness is an awareness of our internal and external stimuli Variations in consciousness are measured with an EEG (electroencephalogram)
Consciousness Consciousness Waking consciousness
Sleep Stages There are 5 identified stages of sleep. It takes about 90 minutes to pass through the stages. The brain’s waves will change according to.
PSY.Dreaming. Bellringer Ms. Knight can never fall asleep when she returns from Washington State. This is due to the 3-hour time difference. Use your.
Chapter 9: States of Consciousness Module 20: Sleep, Dreams & Body Rhythms
BRAIN ACTIVITY. Electroencephalogram EEG: Recording of electric brain waves. EEG: Recording of electric brain waves.
The Nature of Sleep. Links to the Specification Develop a critical understanding of the nature of sleep – what happens during sleep and its possible function.
Unit 3 - Part I.2 Consciousness & Sleep
Sleep & Dreams Baylis 7.1. Consciousness A state of awareness Including: - a person’s feelings - sensations - ideas - perceptions Sleep is a state of.
Thinking About Psychology: The Science of Mind and Behavior Charles T. Blair-Broeker Randal M. Ernst.
Sleep and Dreams Chapter 7.1. What do we know about sleep? 1.People can learn to sleep for just a few hours a night and still function well. 2.Everyone.
AS level Psychology The Core studies The Biological Approach.
States of Consciousness. What is Consciousness? Consciousness consists of all the sensations, perceptions, memories and feeling you are aware of. Altered.
DO NOW: Complete the Sleep QUIZ Handout. Be ready to discuss both to the entire class. Complete the Sleep QUIZ Handout. Be ready to discuss both to the.
Sleep & Dreams Chapter 5 Section 2. Main Idea:  Sleeping and dreaming are essential to human health, although many questions remain. Some people are.
States of Consciousness Waking and Sleeping Rhythms.
Stages of Sleep The Sleep Cycle. How to Measure Sleep Measuring Sleep -- Scientists measure sleep with the following: Electroencephalogram (EEG) -- a.
Chapter 4: States of Consciousness
ON THE NATURE OF CONSCIOUSNESS
The nature of sleep.
The Spec.
Do Now What is consciousness?.
Sleep, Sleep disorders, Biological rhythms
Sleep and Dreams Why do we need sleep?.
Consciousness Section 2
Chapter 5: Consciousness
States of Consciousness
States of Consciousness
States of Consciousness
Variations in Consciousness
Presentation transcript:

STATES OF CONSCIOUSNESS

What is consciousness? A state of awareness…. –Includes the person’s feelings, sensations, ideas, and perceptions

STATES OF CONSCIOUSNESS Different levels of awareness that occur each day (I.e. sleeping, dreaming, thinking, etc) A person who is not completely aware is in a different level (state) of consciousness

Consciousness can be broken down into: –Waking consciousness: Includes all the thoughts, feelings, and perceptions when we are awake and alert –Altered States of Consciousness (ASC): A mental state that differs from waking consciousness

ASC: Examples of altered states of consciousness include: –Daydreaming –Sleep –Dreaming –Hypnosis –Meditation –intoxication

Sleep Was difficult to study until the development of the EEG (electroencephalograph), a device that records the electrical activity of the brain (brain waves) Other measures taken are muscular activity (using an EMG – electromyogram) and eyeball movement (using EOG – electro oculogram)

REM sleep was realized in 1953 …With the invention of the EEG:

Why sleep? Recovery from exhaustion & stress? Primitive “hibernation”? (conserve energy) Stay out of trouble? Clear minds of useless information?

Hypothesis #1. Restoration and Recovery of Body Systems Organisms must replenish energy stores and repair itself after a period of energy use and wear & tear from the day There is little evidence that more repair occurs during sleep than just during awake rest The more physical the exertion, the more important non REM sleep is to recovery The more mental the exertion, the more NB REM sleep is (for memory and learning)

Hypothesis #2. Energy Conservation We sleep to conserve energy  because metabolic rate is slower during sleep

Hypothesis #3: Memory Consolidation Sleeping reinforces learning and memory, while at the same time clearing out unneeded memories FYI lab rats live 2 – 3 yrs but deprived of REM sleep, they survive an average of 5 months – deprived of all sleep  live 3 weeks

Hypothesis #4: Protection from Predators Inactivity during sleep may minimize exposure to predators. At the same time however, one is usually unaware while sleeping –May be more vulnerable…..?

Hypothesis #5: Brain Development This proposed function of sleep is related to REM sleep, which occurs for long periods during fetal and infant development. REM sleep may be involved in the formation of new connections between neurons in the brain

Hypothesis #6: Discharge of Emotions Dreaming may provide a safe discharge of emotions Muscular paralysis prevents acting out dreams Activity in brain regions that control emotions, decision making, and social interactions is reduced during sleep  relieves stress of it all?

Sleep is categorized into: NREM – Non-REM sleep (a.k.a. slow wave sleep) –This type has 4 stages within it –If deprived of this type of sleep, we feel physically tired –This type is especially important after physical exertion REM sleep –Dreaming sleep –Rapid-Eye-Movement –Brain waves are very similar to waking life. –About 20% of our sleep is REM

Stages of Sleep Stage 1 sleep begins with theta waves Stage 2 – theta waves with sleep spindles (rapid bursts of activity) and K- complexes

Sleep Spindles and K-Complexes

Stage 3 – delta waves Stage 4 sleep (deepest sleep) – more than 50% of brain waves are delta A person sleeping goes through one sleep cycle (all stages) about every 90 minutes

The first sleep cycle of the night takes you into the deepest sleep Each subsequent cycle takes you less deep – most of your deep stage 4 sleep is early in the night REM is at the top of the cycle, in lighter sleep REM accounts for about 20% of the sleep time, and increases with each sleep cycle

Look again at the sleep cycle:

Hypnosis A form of altered consciousness People become highly suggestible to changes in behavior and thought People can be made conscious of things they normally are not aware of

Hypnosis continued… People can be made unaware of thing they normally are aware of Hypnosis does not put people “to sleep” People under hypnosis become highly receptive and responsive to certain internal and external stimuli

Everyday Hypnosis…. Brain waves during each of these activities are very similar People can resist hypnosis by refusing to open their mind to the hypnotist.