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132 Cards in this Set
- Front
- Back
The primary function of the senses is to act as _________ |
transducers |
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Information from the sense organs creates _____ |
sensations |
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When the brain organizes sensations into meaningful patterns we speak of _________ |
perception |
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Energy below a certain minimum intensity is necessary for a sensation to occur. The necessary minimum defines the ________ _________ of a sensory system |
absolute threshold |
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Visible light starts at short wavelengths of 400 nanometers, which we sense in what colors? |
Purple of violet |
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Longer light waves produce what colors? (at a wavelnght of 700 nanometers) |
Red Orange Yellow Green Blue |
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Eyes have a ______ to focus images on a light sensitive layer at the back of an enclosed space |
lens |
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In the eye is a layer of ________ in the _______, an area about the size and thickness of a postage stamp |
Photoreceptors, retina |
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Most eye focusing is done at the front of the eye by the _______, a clear membrane that bends light inward |
cornea |
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In focusing, the _____ makes smaller adjustments |
lens |
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The eye has two image sensors called: |
rods, cones |
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The 5 million _____ in each eye work best in bright light |
cones |
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Numbering about 120 million, _______ can't detect colors, only black and white |
rods |
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Each eye has a ______ ______ because there are no receptors where the optic nerve passes out of the eye and blood vessels enter |
blind spot |
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Sound travels as a series of invisible waves of (peaks)_______ and (valleys)________ in the air |
compression, rarefaction |
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The _______ of sound waves (the number of waves per second) corresponds to the perceived ________ (higher or lower tone) of a sound. |
frequency, pitch |
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The ______ or physical "height" of a sound wave tells how much energy it contains |
amplitude |
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How we hear sound: Hearing begins with the _____, the visible external part of the ear which acts like a funnel to concentrate sounds. After they are guided into the ear canal, sound waves collide with the ______ ______, (eardrum) setting it in motion. This causes three small bones, the ________ _______ to vibrate. The ossicles link the eardrum with the ________, a snail shaped organ that makes up the inner ear. the stapes is attached to a membrane on the cochlea called the _______ ________. As the oval window moves back and forth, it makes waves in a fluid inside the cochlea.Inside the cochlea tiny ________ _______ detect waves in the fluid. The hair cells are part of the ________ ____ _______, which makes up the center part of the cochlea. A set of ____________ "bristles" atop each hair cell brush against the tectorial membrane when waves ripple through the fluid surrounding the organ of corti. As the stereocilia are bent, nerve impulses are triggered which flow into the brain. |
pinna tympanic membrane auditory ossicles cochlea oval window hair cells organ of corti stereocilia |
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What are the three auditory ossicles? |
Malleus, incus, stapes OR hammer, anvil, stirrup |
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Poor transfer of sounds from the eardrum to the inner ear |
conductive hearing loss |
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Loss of hearing caused by damage to the inner ear hair cells or auditory nerve |
Sensorineural hearing loss |
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Sense of smell |
olfaction |
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Humans carry genes for about ______ types of smell receptors, only about ______ of them are actually expressed |
1000, 400 |
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Theory that odors are related to the shapes of chemical molecules |
Lock and key theory of olfaction |
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total loss of sense of smell: |
anosmia |
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partial loss of sense of smell: |
dysosmia |
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Sense of taste |
gustation |
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four basic taste sensations: |
In order of most sensitive to and least to: bitter sour salt sweet |
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Fifth taste sensation: |
Umami |
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How we taste: As food is chewed, it dissolves and enters the _____ _____, where it sets off nerve impulses to the brain |
taste buds |
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Pain carried by large nerve fibers; warns that bodily damage may be occurring: |
warning system |
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pain carried by small nerve fibers; reminding the brain that the body has been injured: |
reminding system |
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Proposes that pain messages pass through neural "gates" in the spinal cord |
gate control theory |
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Gate control theory helps explain __________, one widely used pain control technique. ex. pinch yourself while having a tooth filled |
counterirritation |
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We spend most of our lives in _______ ________, a state of clear, organized alertness. |
Waking consciousness |
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A condition of awareness distinctly different in quality or pattern from waking consciousness |
altered state of consciousness |
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Excessive daytime sleepiness |
hypersomnia |
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Sleep is described as an ______ _______ _______ |
innate biological rythym |
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How many stages of sleep? |
4 |
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Stage 1 and what would EEG show |
light sleep small irregular waves with some alpha waves |
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Stage 2 and what would EEG show |
Sleep deepens sleep spindles start to appear |
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Stage 3 and what would EEG show |
deeper slow wave sleep Delta waves start to appear |
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Stage 4 and what would EEG show |
Deep sleep Mostly delta |
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Completely awake what wave would EEG show |
Beta |
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Eyes closed, relaxed, maybe starting to doze off what would EEG show |
Alpha waves |
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NREM sleep occurs during which sleep stages? |
1, 2, 3, 4 |
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REM is associated with ________ and a return to stage ___ EEG patterns |
dreaming, 1 |
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Proposes that NREM sleep reduces the overall level of brain activation, allowing unimportant memories to be forgotten while REM sleep sharpens memory for important events from the previous day |
Dual process hypothesis of sleep |
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When a person compulsively uses a drug to maintain bodily comfort, a _______ ________ (addiction) exists |
physical dependence |
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Addiction occurs most often with drugs that cause ______ _______ (physical illness that follows removal of a drug) |
withdrawal symptoms |
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Addiction is often accompanied by a ________ ________ (reduced response to a drug) |
drug tolerance |
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Persons who develop a _______ ________ feel that a drug is necessary to maintain their comfort or well being |
Psychological dependence |
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A ________ is a substance that increases activity in the body and nervous system |
stimulant (upper) |
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A ________ is a substance that decreases activity in the body and nervous system |
depressant (downer) |
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A drug that lowers anxiety and reduces tension |
tranquilizers |
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Many drugs can be rated on a _________-________ scale according to their effects on the central nervous system |
stimulation-depression |
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Amphetamines |
upper |
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nicotine |
upper |
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narcotics |
downer |
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Xanax, Halcion, Librium, valium |
tranquilizers/ downers |
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Sedatives |
Downers |
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cocaine |
upper |
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MDMA |
upper |
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caffeine |
upper |
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Alcohol |
downer |
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Hallucinogens: |
Marijuana, LSD, PCP |
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Occurs when a person or an animal forms a simple association among various stimuli and/or behaviors |
associative learning |
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Refers to understanding, knowing, anticipatin, or otherwise making use of information-rich higher mental processes |
cognitive learning |
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Events that precede a behavior are? |
antecedents |
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Effects that follow a behavior are? |
consequences |
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A form of learning in which reflex responses are associated with new stimuli (involuntary learning) |
Classical conditioning |
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Learning based on the consequences of responding (voluntary learning) |
Operant conditioning |
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_________ _________ is based on what happens before we respond |
Classical conditioning |
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A horn is associated with a puff of air to the eye is an example of? |
classical conditioning |
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If you wear a particular hat and get lots of compliments (reward or reinforcement) you are likely to wear it more often. If people make fun (punishment) you will probably wear it less is an example of? |
Operant conditioning |
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unlearned, untrained, natural = |
unconditional |
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anything that causes a response = |
a stimulus |
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after training or learning = |
conditioned |
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a stimulus innately capable of eliciting a response: and Pavlov experiment example: |
Unconditioned stimulus (US) meat powder |
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A reflex is innate or "built in" and elicited by an unconditioned stimulus and Pavlov experiment example: |
unconditioned response (UR) salivation |
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A stimulus that does not invoke a response and Pavlov experiment example: |
Neutral stimulus (NS) bell |
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A stimulus, that because of learning, will elicit a response and Pavlov experiment example: |
conditioned stimulus (CS) bell |
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A learned response elicited by a conditioned stimulus and Pavlov experiment example: |
Conditioned response (CR) salivating to the bell |
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Many phobias begin as a _____ ____ ____, or a learned emotional reaction to a previously neutral stimulus |
conditioned emotional response (CER) |
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People who have ______ can often trace their fears back to a time when they were frightened, injured, or upset by a particular stimulus, especially in childhood |
phobias |
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Reducing fear or anxiety by repeatedly exposing a person to emotional stimuli while the person is deeply relaxed |
systematic desensitization |
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Acts that are followed by a positive consequence tend to be repeated |
law of effect |
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any event that follows a response and increases its probability of occurring again |
operant reinforcer |
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Operant reinforcement works best when it is _______ ______, meaning it must be given only after a desired response has occurred. ex. reinforcer tells a person or animal that a response was right and worth repeating |
Response contingent |
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Operant reinforcement is most effective when it rapidly follows a _______ ________ |
correct response |
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linked series of actions that lead to reinforcement |
response chain |
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increased desirable behavior like want |
reinforcement |
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decreased that undesirable behavior don't like don't want |
punishment |
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adding (+) |
positive |
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takeaway (-) |
negative |
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Give the child cookie for sitting quietly in the chair |
positive reinforcement |
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Shutting off TV so child will do their homework |
negative reinforcement |
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Negative reinforcement also increases responding, however it does so by ____________ discomfort |
ending (negating, taking away) ex. you have a headache and take aspirin, your aspirin taking will be negatively reinforced if the headache stops |
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Child was acting out, so I gave him timeout |
positive punishment |
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positive punishment_______ the likelihood that the response will occur again, it does so by initiating (adding) discomfort |
decreases |
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Child was throwing ball in store, so I took the ball away |
negative punishment |
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Non learned reinforcers, produce comfort, end discomfort, fill an immediate physical need ex. food, water, sex |
Primary reinforcer |
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Associated with primary reinforcement ex. praise, attention, approval, success, affection, grades |
Secondary reinforcers |
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Tangible secondary reinforcer ex. gold stars, poker chips |
token reinforcers |
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Gambling is an example of a ______ reinforcer |
gambling |
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learned desires for attention ad approval |
social reinforcers |
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learning that takes place mechanically, through repetition, memorization, and learning the rules |
rote learning |
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learning based on insight and understanding |
discovery learning |
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learning that occurs without obvious reinforcement and remains hidden until reinforcement is provided |
latent learning |
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learning achieved by watching and imitating others |
observational learning |
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The scientific study of overt behavior and mental processes |
Psychology |
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Consists of the brain and spinal cord |
central nervous system (CNS) |
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All parts of the nervous system outside the brain and spinal cord |
Peripheral nervous system |
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carries messages to and from the sense organs and skeletal muscles |
somatic nervous system |
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serves the internal organs and glands |
autonomic nervous system (autonomic=self governing) |
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Autonomic nervous system has two branches: |
sympathetic and parasympathetic nervous system |
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branch of the ANS that arouses the body |
sympathetic branch |
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branch of the ANS that quiets the body |
parasympathetic branch |
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anything capable of disturbing normal development in the womb |
teratogens |
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Examples of teratogens |
radiation, pesticides, lead |
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press an object in a neonates palm and they will grasp |
grasping reflex |
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reflexive head turning and nursing |
rooting reflex |
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nipple touches infants mouth |
sucking reflex |
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startled by loud noise infant will make hugging motion |
moro reflex |
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Newborn reflexes are: |
adaptive |
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Theory of color vision based on three coding systems (red or green, yellow or blue, black or white) |
opponent process theory |
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Phantom limb During sleep, sensory inputs from the area of the missing limb are ________. When amputees are awake, _________ inputs from the area of the missing limb conflict with the neuoromatrix, which interprets the conflict as a phantom limb. Sometimes the brain gradually reorganizes to adjust for the sensory loss. After many years the phantom may shrink, until only a hand is felt at the shoulder *Remember homunculus |
suppressed sensory |
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Axon function path: |
Dendrites to the soma to the axon, which is covered in a myelin sheath to the axon terminal |
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Neuron fibers that receive messages from other neurons |
Dendrites |
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Cell body that sends and receives messages |
soma |
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allows information to be passed from neuron to neuron (bulb shaped) |
axon terminal |
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fatty sheath covering axon |
myelin |