Ch 9: Consciousness Flashcards
Consciousness
Awareness of external stimuli and ones own mental state
Ex. Ducks sleep with one eye open to be alert
Non- REM Sleep
Sleep stages 1,2,3 and 4; they are accompanied by gradually slower and deeper breathing, a calm and regular heart beat, reduced blood pressure, and slower brain waves (stages 3 and 4 are called slow wave sleep)
Rapid eye movement sleep
A stage of sleep in which brain activity and other functions resemble the waking state but that is accompanied by rapid eye movements and virtual muscle paralysis
Aka paradoxical sleep (EEG resembles awake state)
Jet lag
A syndrome of fatigue, irritability, inattention, and sleeping problems caused by air travel across several time zones
Travelers body is ready to sleep at wrong time in new location
Sudden infant death syndrome (SIDs)
A disorder in which a sleeping baby stops breathing and suffocates
Nightmare
A frightening dream that takes place during REM sleep
More common in people with PTSD
Sleep terror disorder
The occurrence of horrific dream images during stage 4 sleep, followed by rapid awakening in a state of intense fear
Sleepwalking
A phenomenon primarily occurring in non-REM sleep in which people walk while asleep
REM behavior disorder
A sleep disorder in which a person does not lose muscle tone during REM sleep, allowing the person to act our dreams
Lucid dreaming
Awareness that a dream is a dream while it is happening
People can intentionally direct dreams
Hypnotic susceptibility
The degree to which a person responds to hypnotic suggestions
In general, 10% of adults are difficult or impossible to hypnotize
Psychopharmacology
The study of psychoactive drugs and their effects.
Blood brain barrier
A feature of blood vessels supplying the brain that allows only certain substances to leave the blood and interact with the brain tissue
Drug abuse
The self administration of psychoactive drugs in ways that deviate from cultural norms and cause serious problems for the user
Addiction
Development of a physical need for a psychoactive drug