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Chapter 5 notecards
Variations in Consciousness
32
Psychology
Undergraduate 1
03/26/2008

Additional Psychology Flashcards

 


 

Cards

Term
Freuds argument of Conciousness
Definition

argues that peoples feelings and behavior are influenced by unconscious needs wishes and conflicts

 

Concious and unconcious processes different levels of awareness

Term
Consciousness
Definition

awareness of internal and external stimuli

(personal awareness)

 

Rearely does conciousness come to a standstill it wanders, it flows, it fluctuates

Term
electroencephalograph (EEG)
Definition

is a device that monitors the electrical activity of the brain over time by means of recording electrodes attatched to the surface of the scalp

 

These brain-wave tracings vary in amplitude(height) and frequency(cycles per second (CPS))

Term
Brain wave frequencys
Definition

Beta (13-24 CPS)

Alpha (8-12CPS)

Theta (4-7 CPS)

Delta (under 4 CPS)

 

Different patterns of EEG activity are associated with different states of conciousness

Term

Beta

(13-24 CPS)

Definition
normal waking thought, alert problem solving
Term

Alpha

(8-12 CPS)

Definition
Deep relaxation, blank mind, meditation
Term

Theta

(4-7 CPS)

Definition
light sleep
Term

Delta

(less than 4 CPS)

Definition
Deep Sleep
Term
Why did conciousness evolve?
Definition

to help our ancient ancestors survive and reproduce

 

A little forethought and planning may have proved valuable in efforts to obtain food, avoid predators, and find mates

Term
Biological Rhythms
Definition

periodic fluctuations in physiological functioning

 

Monitored by biological clock

Term
Circadian Rythyms
Definition
the 24 hour biological cycles found in every human and many other species
Term

Suprachiasmatic nucleaus

(SCN)

Definition
when exposed to light, some receptors in the retina send direct signals to the nearby pineal gland whose secretions of the horemone melatonin plays a key role in adjusting biological clocks
Term

Effects of "Jet Lag"

Definition

chronic Jet Lag appears to be associated with measurable deficits in cognitive performance

 

Rule of thumb

is the adjustment process takes about a day for each time zone crossed

 

Easy to fly westward and shorten your day than to fly eastward and lenghten it

Term

electromyograph

(EMG)

Definition

records muscular activity and tension

Term

electrooculograph

(EOG)

Definition
records eye movements
Term

electrocardiograph

 (EKG)

Definition
records contractions of the heart
Term
Stage 1 of sleep
Definition

theta waves prominent

(1-7 minutes long)

Term
stage 2 sleep
Definition
sleep spindles and mixed EEG activity
Term
Stage 3 and 4
Definition

Slow wave sleep

Progressivly more delta waves

Term
REM Sleep
Definition

where dreaming happens

Rapid eye movements

low voltage, high frequency waves

20% of adults night spent in REM

muslce movements relaxed so person is prevented from acting out dreams (sleep paralasys)

Term
Non-REM sleep
Definition

stages 1-4

abscence of eye movement

relativley little dreaming

sleep walking, talking

do not remember dreams

deep sleep

80% of nights sleep

Term
Sleep Cycle
Definition

repeats about four times a night

susequent REM periods get gradually longer

most slow wave sleep occurs early in the sleep cycle

Term
Insomnia
Definition

chronic problems getting adequite sleep

34-35% of adults report problems with insomnia

15-17% report severe insomnia

Term
narcolepsy
Definition
a disease marked by sudden irresistible onsets of sleep during normal waking periods
Term

Sleep Apnea

Definition

frequent, reflexive gasping for air that awakens a person and disrupts sleep

Term
Somnambulism
Definition
Sleepwalking
Term
Hypnosis
Definition

a systimatic procedure that typically produces a heightend state of suggestibility

10% of people cannot be hypnotized

10% are very hypnotizable

used for anesthesia

Sensory distortions and hallucinations

dishinhibition

post hypnotic suggetions and amnesia

possible role playing

many doubts

Term
Dissociation
Definition

is splitting off of mental processes into two seperate, simultaneous streams of awareness

(hidden observer theory)

 

Divided consciousness is a common experience

highway hypnosis

Term
Meditation
Definition

refers to a family of practices that train attention to heightened awareness and bring mental processes under great control

alpha and theta waves become more prominent

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