REA Guide For The Introductory Psychology CLEP Terms Flashcards
Psychology
Scientific study of human behavior and mental processes.
Answers philosophical questions about human nature.
Uses methods borrowed from other disciplines.
Wilhelm Wundt
German. Set up first psychology lab. Was a Structuralist.
Studied how people sense and perceive world around them.
Structualists
Believed that consciousness was made of basic elements. combined in different ways to produce different perceptions.
They wanted to discover the form or elements of mental experience.
introspection
Technique favored by structuralists for examining mental experience. Involves reporting one’s own conscious thought and feelings. It fell out of favor, too subjective, not usable on children or animals.
Edward Titchener
Set up first American psychology lab, was a structuralist.
Functionalists
Believed mental experiences were adaptive, or functional for people. Believed behavior and consciousness allowed people & animals to adjust to environments.
William James
a most notable functionalist.
Current state of the study of psychology
psychologists study both the structure and functions of behavior. both are methods, are of many that are used to study psychology.
Approaches to understanding human behavior
Biological, Psychodynamic, Behavioral, Cognitive Approach, Humanistic
Biological approach
Focus on physiological and biochemical processes might produce psychological phenomena.
Psychodynamic approach
Thoughts, feelings and behaviors stem from the interaction of innate drives and restrictions on those drives. Most important drives according to Sigmund Freud are that of sexual and aggression.
[we have drives]+[society, limitations]=[conflicts]
how we approach conflicts determines personality.
The reason for much of your behavior are unconscious and rooted in childhood.
Behaviorist approach
Explains behavior in terms of learned responses to predictable patterns of environmental stimuli.
Pavlov (and his dogs) = classical conditioning
Skinner = operant conditioning
They study animals in order to understand people more often than the other approaches. They don’t believe in expectations, feelings or thoughts.
Cognitive approach
reaction against behaviorism.
Focuses on explaining behavior in terms of expectations, feelings, and thoughts.
Humanistic approach
They believe that people are not machines based on genetic code, stimuli, or calculations, but instead humans have the desire for optimal growth & development (i.e. self-actualization).
They believe people are basically good and focus on positive aspects of development.
experiments
cause and effect relationships
independent variables
The “cause” & always involves treating subjects in at least two different ways
experimental group
exposed to cause
control group
not exposed to cuase
dependent variable
the “effects” of the cause
placebo effect
different behavior because the subject knows they are being tested/getting special treatment
placebo
fake special treatment
blind study
subjects unaware if they are reciving special treatment or not
double blind study
both experimenter and experimetee are unaware of who has recivied special treatment
correlational studies
assessing the relationship between two variables
positive relationship
high score in one variable results in/correlates to a high score in another variable (+1)
negative relationship
high score in one variable results in/correlates to low scores in another variable (-1)
correlation coefficient
(+/-)1, the higher the absolute value = more correlation, +/- indicates type of relationship, 0 is no relationship
surveys
participants fill out questionaries that ask about variables, researchers determine patterns
case studies
in-depth analysis of only one person (Freud used these a lot).
naturalistic observation
studying behavior as it occurs in real life settings
must be unobtrusive, and have inter-judge/inter-rater/inter-observer reliability (the confirmation of what is happening)
behavioral neuroscience
focused on communication between body parts, how behavior is influenced by it
nervous system
organization of neurons, transmitters, and brain structures that moves information throughout the body
neurons
pathways for communication (i.e. nerve cells)
sensory neurons
aka afferent neurons. They take in information and transmit to the spinal cord and brain.
motor neuorns
aka efferent neurons. They send information in opposite direction (away from brain)
interneurons
aka associasion neurons. They communicate with other neurons
cell body
keep cell alive and functioning, nucleus, etc.
dendrites
short fibers that take information from outside the cell
axons
fibers that pass information along to other nerve cells, gland or musclesfibers that pass information along to other nerve cells, gland or muscles
mylein sheaths
fats that surround axons and accelerates transmission of information
action potential
electrical impulse that activates nerves and sends messages
+outside, -inside cell
refractory period
the neuon has time to pump out sodium ions and fire again
neurotransmitters
chemicals contained within vesicles (sacs) that when released from the axon terminal cross the synaptic gap to next cells dendrites, continue relay
serotonin
controls arousal and sleep. low levels of this in the brain is typical of depression
agonists
drugs that mimic a neurotransmitter or make more by blocking reuptake
antagonists
drugs that block neurotransmitters receptor sites or inhibit release
CNS
brain, spinal cord, reflexive behavior and relays information. Central Nervous System.
PNS
sensory and motor neurons that connect the brain and spinal cord to the rest of the body. Divided into the SNS and ANS. Peripheral Nervous System.
Somatic Nervous System
allow you to operate in the external environment. carries info to CNS, carries info from CNS to muscles, etc. SNS
Autonomic Nervous System
regulates the internal environment, controlling glands, organs, etc. ANS.
ANS divisions
Sympathetic = fight or flight (prepares you for action) Parasympathetic = rest and digest (slows your body down for rest)
Brainstem
spinal cord enters skull
controls breathing and heartbeat
thalamus
sits on top of brianstem and receives information on touch taste sight and hearing (not smell), sends info to higher brain regions
reticular formation
runs though both brainstem and thalamus and controls arousal and sleep (as well as filters incoming stimuli and sends info to other parts of the brain)
cerebellum
at the rear base of brainstem. adjustment of movements, coordination of voluntary movement
limbic system
sits near the cerebral cortex and comprises several component structures
hippocampus
processes memory
amygdala
influences fear and anger
hypothalamus
influences hunger, thirst, sexual behavior,
controls pituitary glad (a “master gland” which influences the release of hormones from other glands)
hormones
chemical messengers
this and the glads that produce this make up the endocrine system
cerebral cortext
the outer covering of the brain
primarily involved in motor, cognitive, and sensory processes
(divided into left and right hemispheres which are then each divided into four regions)
frontal lobes
coordinates movement and higher level thinking (such as planning and predicting) Also contains speech areas.
Broca’s area
speech (when damaged a person can usually understand speech but not speak as easily as everyone else)
Wernicke’s area
when damadged a person can physically speak but only with meaningless words
parietal lobes
involved in sense of touch, keep tabs on where hands and feet are (located on top of head behind frontal lobes)
temporal lobes
involve hearing (located just above and on either side of the ears)
occipital lobes
involve vision (located at the base of the skull)
sensation
transforming engery from outside stimulus to neural energy used for perception
perception
mentally creating an image of the outside world
psychophysics
area of psychology that addresses the topic of sensation, levels of intensity we detect stimuli, how sensitive we are to changes in stimulation, and how psychological factors influence our ability to sense stimuli
signal detection theory
our ability to notice a stimulus will vary based on psychological factors such as expectations, past experience, motivation
absolute threshold
minimum intensity necessary to detect a stimulus (detected 50% of the time it is present)
just noticeable difference
jnd/difference threashold is the smallest
difference
a person can detect
Weber’s Law
the ability to differentiate between like differences deceases with increasing intensity or magnitude of the stimuli
sensory adaptation
less frequent firing results in diminishing stimulus. This allows us to attend to stimuli that matter and not to those that don’t matter
feature detectors
detect specific stimuli, activate identification centers to understand more complex patterns
selective attention
too many stimuli to attend to so body is only aware of certain stimuli. reality is chosen organized and interpreted, not simply detected.
Gestalt Psychologists
discovered that the brain pieces together meaningful experiences out of fragments of sensation, mind fills in gaps in our sensations
Depth perception
allows to estimate distances between ourselves and objects we see (our retinas can only see 2D our brains do the rest) uses binocular cues and/or monocular cues
Binocular cues
requires both eyes, includes retinal disparity & convergence
retinal disparity
uses differences in images between right and left eye to gauge distance
convergence
extent to which eyes must turn toward the nose to gauge closeness of an object
Monocular cues
uses one eye only for depth perception (includes linear perspective, motion parallax, and texture gradients)
linear perspective
parallel lines appear to converge as they get farther away
closer together = farther away (like railroad tracks in the distance)
motion parallax
aka relative motion. apparent movement of stable objects as we move. fixation points are what you are looking at (these object move quickly when close to you and slowly when far away)
interposition = when an object partially blocks out another object and therefore looks closer than the object it is blocking out
texture gradients
objects closer have more texture, objects farther have
blend
together
critical period
time which exposure to stimuli is required in order for various perceptual skills to develop, even though many of these ideas are wired into our brains
general principle of sensation and perception
processing info about environment uses both a bottom up fashion (simple receptors to neural networks) and top down fashion (expectations, motives and cues down to raw data)
Consciousness
the state of being aware. reflecting on environment rather than just reacting to it (thinking, problem solving, learning and memory)
Circadian Rythm
rise and fall in predictable ways during the day, synchronized (these things have this: hormone levels, body temperature, wakefulness)
sleep
cycles through 5 stages every 90 minutes (stages named based on type and appearance of brain waves)
alpha waves
relatively slow and regular/awake stage
Stage 1
Slower breathing, irregular erratic brain waves. This sleep stage is 5 minutes long.
hypnogogic = drowsiness, floating or falling may be experienced
alpha waves are replaced by thetha waves
Stage 2
deeper relaxation and occasional bursts of brainwaves called sleep spindles and k-complexes. This sleep stage is 20 minutes long.
Stage 3
brain starts producing delta waves (large & slow), this is a transition to the next stage.
Stage 4
stronger more consistent delta waves.
Stages 3 and 4 are slow wave sleep, combined lasts 30 minutes (they are the hardest to wake someone during)
REM
After stage 4 sleep, they go to 3, 2, but then this stage for 10 minutes which is similar to stage 1 but breathing is more rapid and irregular, heart rate increases and eyes move back and forth
but, action/movement is blocked by brainstem.
rapid eye movement, sometimes called paradoxical sleep
They then go back through the cycle (stage 2, 3, …)
Insomnia
difficulty falling or staying asleep
Narcolepsy
sudden and uncontrollable attacks of sleep during daytime/waking hours (sometimes falling directly into REM)
sleep apnea
when the person stops breathing intermittently during sleep, the lack of oxygen then wakes the sleeper (this can happen 100s of time per night)
manifest content
(the images that actually appear to the dreamer) Freud thought that this was a disguised version of the dreams latent content (usually “forbidden” sexual or aggressive wish of the dreamer)
activation-synthesis theory
brains neurons fire randomly during sleep, we construct a dream in order to make sense of the random images
information processing
dreams are a way to consolidate information, sort through the day’s events and put them into our memory
REM rebound
when deprived of paradoxical sleep, people make up by experiencing prolonged periods of it
Hypnosis
deep relaxation and heightened suggestibility
some explanations for heightened suggestibility are that they are more motivated, fulfilling social roles, other think it involves dissociation which allows the person to become aware of their activities
psychoactive drugs
produce consciousness that is different than “normal”
mimicks, inhibits or stimulates neurotransmiters
depressants
slows body’s functions and neurological activity (such as alcohol, barbiturates, and opiates)
stimulants
increase neural activity and body functions
hallucinogens
distort perceptions and produce sensations that have no physical basis
learning
relatively enduring change in behavior that is the product of experience
stimuli
various effects that are capable of triggering responses or changes in behavior
cognitive factors
expectations and ability to represent events mentally