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