Consciousness

Overview

Consciousness : State of awareness of the internal and external world. State of Awareness Knowledge of Thoughts External Environment

Sleep

A state of minimal consciousness with reduced motor and sensory activity

Stage 1: a few minutes (5%)

Stage 2: 45 minutes (20%)

Stage 3 & 4: 1 hour in first cycle (20%)

REM-rapid eye movement (25%)

Sleep Cycle

Restorative Theory of Sleep

Intended to regenerate your body

Blood directed away from brain to muscles for repair

Immune system is more active

Explains dopey feeling if woken up during stage 3 and 4

Adaptive Theory of Sleep

Sleep-Wake patterns are shaped by evolution

Behaviors are passed down if they increase chance of survival

Adaptive to sleep at night because of hunting, daylight, etc…

Away from predators

Sleep Deprivation

As you get older you get less sleep.

More irritable, decreased reaction time, and memory loss.

Increased risk of disease, type II diabetes, and obesity

Sleep Debt: difference between how much sleep you get vs. need

75% adults experience daytime sleepiness and 34% interferes with everyday life.

Sleep Disorders

Insomnia

Sleep Apnea

Narcolepsy

Sleep paralysis

REM sleep dx

Sleep Sex

Night terror

Nightmares

Sleep Walking

Sleep Eating

Dreams

An array of sensory events experienced during sleep

Average person spends 6 years dreaming.

Psychoanalytic Theory If you had access to id you would never sleep Dreams protect sleep Latent Content: pure id wish Manifest Content: The reported dream

Activation-Synthesis Model Dreams mean nothing Brain is consolidating memories for fast retreval

Hypnosis

Trancelike state in which the subject readily accepts the hypnotist’s suggestion of changes in consciousness or sensations.

Not all people can focus or imagine a scenario.

People do not go against their principles

Posthypnotic suggestion Behavior or thinking pattern that comes out after

hypnosis

Theories of Hypnosis

Altered State of Consciousness Hypnosis is a distinct kind of consciousness.

Role Playing You respond to the suggestion because you are

expected to.

Dissociation theory of hypnosis Divided consciousness from executive control

system.

Meditation

A mental practice that regulates attention and awareness

Not tied to any religion, but can be religious.

Benefits Hypertension Chronic Pain Perception of control Anxiety Depression