final exam Flashcards
psychology
the science of behavior and mental processes
behavior
anything an organism does that can be observed and recorded
mental processes
internal subjective experiences
structuralism
(Tichener and Wundt)
Focused on introspection
functionalism
(James and Darwin)
focused on how mental and behavioral processes function
Mary Whinton Collins
Studied at Harvard under James
Margaret Floyd Washburn
First female psyc PHD
Psychoanalysis
(Freud)
- focused on sexual urges in children and dreams (unconscious)
- no way to actually prove these theories with science
behaviorism
focused on observble behavior (focused on negative behavior)
humanistic psychology
focused on potential growth
cognitive theories
attempts to explain human behavior by understanding your thought processes
evolutionary psychology
how particular traits evolve over time
positive psychology
how to help people from average to above average
Neuropyschology
study brain and behavior
evolutionary psyc
how traits develop over time
cognitive psychology
how thinking influences how you view the world
developmental psyc
study development
clinical psyc can:
research, teach, therapist
counseling psyc
less research, more therapy
theories help _____ complex concepts
simplify
hypothesis
testable prediction: specify in advanced what results would support theory or disconfirm theory
clear operational definition
statement of procedures used to define variables
replication
make sure the theory is replicable
descriptive methods
describe, but don’t explain, behavior
correlational methods
associates different methods
experimental methods
manipulates factors to discover their effects
case study
study one person in great depth in the hope of revealing universal principles
survey
asking people to fill out self-reports
naturalistic observation
observing/recording behavior in a naturally occuring situaiton without manipulating or controlling the situation
correlation
how 2 factors vary together and how well they predict eachother
correlational coefficient
statistical measure of relationship between 2 factors (-1 to 1)
independent variable
is manipulated
dependent variable
factor being measure that may/may not change in response to the independent variable
experimental group
exposed to the independent variable
control group
not exposed to the independent variable
placebo effect
experimental results caused by expectation alone
double blind procedure
both researchers and participants don’t know who is recieving placebo vs. actual treatment
neuron
nerve cell, transmits information.
axon
send message away from neuron
dendrite
recieves message from other axons
myelin sheath
fatty cells that insulates some axons
glial cells
support, nourish, and protect neurons
action potential
brief electrical charge that travels down an axon
synapse
gap, where axon of one neuron meets dendrite of another
neurotransmitter
chemical messengers that are released to go through gap
reuptake
the sending neuron reabsorbs the excess neurtransmitters
acetylcholine
- neurotransmitter
- muscle action, learning, and memory
dopamine
-neurotransmitter
movement, learning, attention and emotion
schitzophrenia is a result of too much
dopamine
seratonin
-neurotransmitter
Hunger, arousal, mood, sleep (HAMS)
people with depression often how low levels of____.
seratonin
norepinephrine
- nuerotransmitter
- alertness and arousal
endorphins
- neurotransmitter
- influence perception of pain or pleasure
____ and ____ can affect communication at the synapse which affects behavior
drugs; chemicals
agonist
excite by mimicking a particular neurotransmitter or blocking its reuptake
antagonist
inhibit by blocking a neurotransmitter or diminishing their release
when is an antagonist prescribed?
when a body is making too much of a certain neurotransmitter
nervous system
all neuron’s communicating
Central Nervous System
brain/spinal cord
-
Peripheral nervous system connects ____________.
CNS to the rest of the body
breakdown of the PNS
- PNS-> Somatic nervous system and autonomic nervous system.
- Autonomic nervous system-> parasympathetic and sympathetic
somatic nervous system
movement in muscles; voluntary
autonomic nervous system
organs (involuntary)
parasympathetic
rest/digest
sympathetic
fight/flight
endocrine system
glands and tissues that secrete hormones
adrenal glands
release epinephrine and norepinephrine
pituitary glands
regulates growth and controls other endocrine glands
When is the pituitary gland released?
during sleep
the limbic system is associated with ________.
emotion and drives
The limbic system includes:
Hippocampus- memory
amygdala- agression/fear
hypothalamus- eating, drinking, and body temperature
frontal lobe
personality, impulse control, planning, judgement
temporal lobe
auditory
occipital lobe
visual information
parietal
integrates all senses
corpus callosum
connects the 2 hemispheres of the brain
what is the corpus callosum made of?
axon fibers
the corpus callosum allows:
both hemispheres to integrate informaiton
plasticity
our brain can modify itself
neurogenesis
some neurons can regenerate (new nerve growth)
genotype
complete set of genes in an individual
phenotype
observed characteristics of an individual
nature
genes, biological predispositions, heredity
nurture
enviornmental factors, experiences, etc
epigenetics
enviornmental factors effect genes/genetic expression
temperament
individual differences in emotional, motor, attention reactivity and self regulation
personality
combo of temperament and life experiences
Rosenweig’s study examined?
rats raised in solitary confiments vs communal play
- same mother, same genes
- rats in the enriched enviroment had more developed brains
regular siblings have _____ similar genes, and ____ pregnancies.
50%, different
fraternal twins have _____ similar genes, and ____ pregnancies.
50%, same pregnancy
*raised in same environment
indentical twins have _____ similar genes, and ____ pregnancies.
100%, same pregnancy
*grow up in same environment
dizygotic
fraternal twins
monozygotic
indentical twins
biological sex
DNA, external genitalia
gender
the way we present ourselves, behavior
gender indentity
perception of self as psychologically male or female
cisgender
gender identity that matches biological sex
transgender
gender identity that does not match biological sex
women go throught puberty ____ years earlier
2
gender roles
expectations about the way men and women should behave
sensation
sensory receptors/nervous system receive and represent info from the enviornment
perception
organizing and interpreting sensory info
absolute threshold
minimum stimulation needed to detect a particular stimulus 50% of the time
signal detection theory
predicts how/when we detect the presence of a faint stimulus (signal) amid the background stimulation (noise)
difference threshold
(just noticable difference)
the minimum difference a person can detect between any 2 stimulus 50% of the time
Weber’s law
to be perceived as different, two stimuli must differ by a constant minimum percentage
sensory adaptation
our diminishing sensitivity to an unchanging stimulus
selective attention
at any given moment, we focus our attention on only a limited aspect of all that we are capale of experiencing
light waves enter the eye through the ______ and then pass through the _____.
cornea, pupil
iris
colored muscle that surrounds the pupil; regulates pupil (constricts and dilates)
lens
transparent structure behind the pupil that changes shape to focus images on the retina
retina
light-sensitive inner surface of the eye contains rods (black and white) and cones (color)
optic nerve
carries nerve impuses from the eye to the brain
parallel processing
ability of brain to process different types of info at once
e.g- color, motion, form, depth
blindsight
ability to respond to something not consciously seen
eardrum
tight membrane that vibrates with the sound waves
middle ear
chamber between eardrum and cochlea
-contains the hammer, anvil, and stirrup
inner ear
innermost part of ear
-contains cochlea, semicircular canals, and vestibular sacs
cochlea
coiled, bony, fluid-filled tube in the inner ear
- basilar membrane
- sound waves trigger nerve impuses
stereophonic hearing
we hear in 3D
conduction hearing loss
problems with mechanical system that conducts waves to the cochlea
sensorineural hearing loss
damage to the cochlea’s hair receptors or their associated nerves
-loud eventaully causes this
sense of touch is a mix of 4 distinct skin senses:
pressure, warmth, cold, pain
gate-control theory
the spinal cord contains a neurological “gate” that blocks pain signals or allows them to pass the brain
small nerve fiber vs large nerve fiber
small: send “pain” to brain
large: other sensory signals can “override” pain signals
- can be physical or psychological
what makes up taste?
sweet, salty, sour, bitter, unami
kinesthesis
ability to sense body’s positions and movement of individual body parts
vestibular sense
the sense of the body movements and positions, including balance
-located in the inner ear
sensory interaction
one sense can influence another
e.g- taste and smell
embodied cognition
the influence of bodily sensations, gestures, and other states on cognitive preferences and judgements
synethesia
when one sense is activated, another sense is activated
e.g- see letters or numbers in color OR taste words
figure ground
organization of visual field into objects that stand out of their surroundings
figure ground is _____.
partly innate
e.g- visual cliff experiment
binocular cues
both eyes; close objects
monocular cues
one eye; further objects
relative height
we perceive objects higher in our field of vision as further away
relative size
if two objects are similar in size, the one that casts the smaller retinal image is perceived as farther away
interposition
if one object partially blocks another, we perceive it as closer
linear perspective
parallel lines appear to converge with distance
perceptual constancy
perceiving objects as unchanging even as illumination and retinal images chage
color constancy
familiar objects as having consistent color, even if changing illumination alters the wavelengths reflected by the object
shape/size constancy
perceiving objects as having the same shape/size even while retinal images of them change
-door stays a rectangle even when seen at different angles while closing
figure ground and color perception are learned or innate?
innate
perceptual set
mental predisposition to perceive one thing and not another
-experiences, assumptions, and expectations greatly influence what we perceive
wavelength
distance from one wave peak to the next
wavelength determines ____
hue: the color we experience
amplitude
a light wave’s height
amplitude determines ______.
intensity: amount of energy the wave contains
intensity influences_____.
brightness.
frequency
of complete wavelengths that can pass a point in a given time
shorter wavelength=
higher frequency
more light=
iris constricts
Young-Helmholtz Trichromatic Theory
eye has 3 types of color receptors: green, red, and blue
Hering’s Opponent-process theory:
color vision must involve two additional color processes, one responsivle for RED VS GREEN perception and one responsible for BLUE VS YELLOW perception.
2 steps of color processing:
- retina’s red-, blue-, and green- sensitive cones respond in varrying degrees to different color stimuli (young)
- the cone’s responses are then processed by oponent-process cells (hering)
consciousness
our awareness of ourselves and our environment
selective attention
focusing of conscious awareness on a particular stimulus
inattentional blindness
failing to see visible objects when our attention is directed elsewhere
change blindness
failing to note changes in the enviornent
circadian rhythm
body’s biological clock
- regulates body rhytms that occur on a 24 hour cycle
- signals when it’s time to sleep