Shared Flashcard Set

Details

Chapter 5 - Consciousness
Expanding the Boundaries of Psychological Inquiry (Biology of Sleep, Theories and Psychology of Dreams, Other Alterations of Consciousness and Unusual Experiences, Drugs and Consciousness)
95
Psychology
Undergraduate 1
12/12/2010

Additional Psychology Flashcards

 


 

Cards

Term
Sleep Paralysis
Definition
State of being unable to move just after falling asleep or right before waking up 
Term
Describe in detail Sleep Paralysis 
Definition
Caused by a disruption in sleep cycle and is often associated with anxiety,terror, feelings of vibrations, humming noises, and eerie sense of menacing figures close to you
Term
Consciousness
Definition
our subjective experience of the world, our bodies and our mental perspectives
Term
How long do we spend sleeping in our lives? (fraction)
Definition
1/3 
Term
Circadian rhythm 
Definition
cyclical changes that occur on a roughly 24-hour basis in many biological processes. Controls feelings of sleepiness and drowsiness 
Term
Biological Clock
Definition
Term for the suprachiasmatic nucleus (SCN) in the hypthalamus that's responsible for controlling our levels of alertness 
Term
Effects of sleep deprivation
Definition

-hallucinations

-feeling edgy, irritable and unable to concentrate

-depression

-difficulty acquiring new info

-high blood pressure

-weight gain

Term
Rapid Eye Movement (REM)
Definition
darting of the eyes underneath the closed eyelids during sleep
Term
In what stage of sleep do individuals usually experience vivid dreams?
Definition
REM
Term
non-REM sleep (nREM)
Definition
stages 1-4 of the sleep cycle, during which eye movements do not occur and dreaming is less frequent and vivid
Term
How many stages of sleep do we go through?
Definition
five
Term

Name the following and state what they measure

-EOG

-EEG

-EMG

 

Definition

Electrooculogram - measures eye movements

Electroencephalogram- measures brain waves

Electromyogram - measures muscular activity 

Term
How long does the sleep cycle last?
Definition
90 minutes
Term
Stage 1 Sleep
Definition

-lasts for 5-10 minutes

-brain activity powers down by 50% or more

-produces THETA waves (4-7 times a second)


Term
When do beta waves occur?
Definition
During active alert states (13 times per second)
Term
When do Alpha waves occur?
Definition
When we are quiet and relaxed (8-12 times a second)
Term
Hypnagogic imagery
Definition
when in deep sleep, experience scrambled, bizzare, and dreamlike images that flit in and out of consciousness 
Term
Hypnic Myoclonia 
Definition
sudden jerks of limbs while you sleep or the feeling that you were startled or falling
Term
Sleep spindles
Definition
sudden bursts of electrical activity 
Term
What type of waves occur in sleep spindles?
Definition
K-complexes (occur only when we sleep)
Term
What percent of sleep do we spend in stage 2?
Definition
65%
Term
After about 10-30 minutes of sleeping what kind of waves are observed?
Definition
Delta waves (slow waves)
Term
What is stage 5 sleep commonly known as?
Definition
paradoxical sleep or REM sleep
Term
How does REM sleep change throughout the night?
Definition
The amount of time spent in REM sleep increases with each cycle. 
Term
REM rebound
Definition
the amount and intensity of REM sleep increases when humans are deprived of REM for a few nights
Term
Middle ear muscle activity
Definition
occurs during REM sleep, muscles of our middle ears become active, almost as though they're assisting us to hear sounds in the dream
Term
REM behavior disorder 
Definition

when people act out in their dreams

-1 in 200 people

-most common in men over the age of 50

Term
Lucid Dreaming
Definition
experience of becoming aware that one is dreaming
Term
do we dream in color or black and white?
Definition
color! 
Term
Insomnia 
Definition
difficulty falling asleep
Term
What is the most common sleep disturbance?
Definition
Insomnia 
Term
What are the three possible forms of insomnia?
Definition

1) having trouble falling asleep

2) waking too early in the morning

3) waking up during the night and having trouble returning to sleep

Term
rebounding insomnia
Definition
longstanding use of sleeping pills can make it more difficult to sleep once people stop taking them
Term
Restless legs syndrome
Definition

urge to move our legs or other body parts, often while we attempt to sleep

Affects as much as 15% of people

Term
Narcolepsy
Definition
disorder characterized by the rapid and often unexpected onset of sleep
Term
Cataplexy
Definition

happens to people with narcolepsy,

a complete loss of muscle tone

Term
Orexin
Definition
the hormone that appears to play a key role in triggering sudden attacks of sleepiness
Term
Sleep Apnea
Definition
disorder caused by a blockage of the airway during sleep
Term
Night terrors
Definition
sudden waking episodes characterized by screaming, perspiring and confusion followed by a return to a deep sleep
Term
What stage of sleep do night terrors occur in?
Definition
non-REM sleep/stages 3 and 4
Term
Sleepwalking
Definition
walking while fully asleep
Term
Sexsomnia
Definition
people who have sexual intercourse while sleeping
Term
When is sleepwalking most frequent?
Definition
In childhood
Term
What is latent content?
Definition
the true, hidden meaning
Term
What is manifest content?
Definition
the details of the dream itself
Term
Activation-synthesis theory
Definition
theory that dreams reflect inputs from brain activation originating in the pons, which the forebrain then attempts to weave into a story
Term
What part of the brain plays a critical role in the experience of dreams ?
Definition
the forebrain
Term
What do scientists with a neurocognitive view of dreaming argue?
Definition

they argue that explaining dreams only in terms of neurotransmitters and random neural impulses doesn't tell the full story. 

-believe dreams are cognitive achievements 

Term
Name the five things scientists hypothesize dreams to be involved in
Definition

1) processing emotional memories

2) integrating new experiences with established memories to make sense of the world

3) learning new strategies and ways of doing things

4) simulating threatening events so we can better cope with them in everyday life

5) Reorganizing and consolidating memories

Term
Hallucinations
Definition
ability to create realistic perceptual experiences in the absence of any external stimuli 
Term
out-of-body-experience (OBE)
Definition
sense of our consciousness leaving our body
Term
Near-death experiences (NDE's)
Definition
out-of-body-experiences reported by people who've nearly died or thought they were going to die
Term
What can trigger NDE-like experiences?
Definition

a) electrical stimulation of the brain's temporal lobes

b) lack of oxygen to the brain in rapid acceleration during fighter plane training

c) Psychedelic drugs (lsd, and mescaline) or anaesthetic drugs (ketamine)

 

Term
Deja Vu
Definition
feeling of reliving an experience 
Term
according to the dual processing theory...
Definition
deja vu arises when input from separate neural pathways that process sensory information is slightly out of sync
Term
Mystical experiences
Definition
feelings of unity or oneness with the world 
Term
meditation
Definition
set of ritualized practices that train attention and awareness
Term
Concentrative meditation
Definition
the goal is to focus attention on a single thing
Term
awareness meditation
Definition
attention flows freely and examines whatever comes to mind
Term
Meditation is associated with increases in what type of waves?
Definition
ALPHA!!!!!
Term
Hypnosis
Definition
set of techniques that provides people with suggestions for alterations in their perceptions, thoughts, feelings, and behaviors
Term
Past life regression therapy
Definition
therapeutic approach that hypnotizes and supposedly age regresses patients back to a previous life to identify the source of a present-day problem
Term
Sociocognitive theory of hypnosis
Definition
approach to hypnosis based on people's attitudes, beliefs, and expectations
Term
Dissociation theory of hypnosis
Definition
approach explaining hypnosis based on a separation between personality functions that are normally well integrated 
Term
Psychoactive drugs
Definition
chemicals similar to those found naturally in our brains that alter consciousness by changing chemical processes in neurons 
Term
Sedative
Definition
drug that exerts a calming effect
Term
Mental set (in terms of drugs)
Definition
beliefs and expectancies about the effects of drugs 
Term

What type of drugs are alcohol and sedative-hypnotics?

Definition
depressant drugs that depress the effects of the central nervous system
Term
What type of drugs are nicotine and cocaine?
Definition
stimulant drugs, they rev up the central nervous system
Term
hypnotic 
Definition
drug that exerts a sleep-inducing effect
Term
What is the most widely used and abused drug?
Definition
Alcohol 
Term
What is the BAC cutoff for legal intoxication when operating a vehicle in Canada?
Definition
0.08 
Term
Tolerance
Definition
reduction in the effect of a drug as a result of repeated use, requiring users to consume greater quantities to achieve the same effect 
Term
Withdrawal
Definition
unpleasant effects of reducing or stopping consumption of a drug that users had consumed habitually
Term
Delirium 
Definition
disorientation, confusion, visual hallucinations and memory problems, sometimes resulting from alcohol withdrawal
Term
What is the most severe alcohol withdrawal phenomenon?
Definition
Delirium tremens (DTs)
Term
Alcohol hallucinosis 
Definition
auditory hallucinations, sometimes accompanied by paranoid beliefs, resulting from alcohol withdrawal
Term
Stimulants
Definition
drugs that increase activity in the central nervous system, including heart rate, respiration
Term
Adjustive value
Definition
it can enhance positive emotional reactions and minimize negative emotional reactions
Term
What is the most powerful natural stimulant?
Definition
cocaine
Term
What are the 3 patterns of amphetamine use?
Definition

1. occasional/casual use of amphetamines to postpone fatigue, elevate mood, cram for test etc. but it doesn't become a routine part of the user's lifestyle

2. Users get their drugs from a doctor, but use them for euphoria effects rather than what they were prescribed for 

3. Street users who usually inject the drug 

Term
Methamphetamine 
Definition
a drug closely related to amphetamines, destroys tissues and blood vessels, causes acne, leads to weight loss, tremors and dental problems
Term
Narcotics
Definition
drugs that relieve pain and induce sleep
Term
Heroin withdrawal symptoms 
Definition
includes abdominal cramps, vomiting, craving for the drug, yawning, runny nose, sweating and chills
Term
Hallucinogenic
Definition
causing dramatic alterations of perception, mood, and thought
Term
What is the most frequently used illegal drug in Canada?
Definition
Marijuana 
Term
What ingredient in marijuana cause its effects?
Definition
THC (delta-9-tetrahydrocannabinol)
Term
Flashbacks
Definition
recurrences of a psychedelic experience
Term
What type of drug is ecstasy?
Definition
A stimulant and hallucinogenic 
Supporting users have an ad free experience!