Psyc Unit 2 Terms – Flashcards
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learning
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process of acquiring new and relatively enduring info/behaviors
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classical conditioning
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associate two stimuli so we are able to adapt to our environments and prepare accordingly
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operant conditioning
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associate response and its consequences (repeat acts that bring rewards/avoid acts with unwanted results)
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cognitive learning
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acquisition of mental info., whether by observing events, by watching others, or through language
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associative learning
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learning that certain events occur together (fond. op.)
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observational learning
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(form of cognitive) learning from others experiences
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reinforcement
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increasing likelihood of behavior in future
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respondent behaviors
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behavior that occurs as an automatic response to some stimulus
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behaviorism
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watsons view that psychology should be an objective science that studies behavior w.o reference to mental processes
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neutral stimulus
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in Classical Conditioning, a stimulus that elicits NO RESPONSE BEFORE CONDITIONING
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unconditioned response UR
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in Classical, an unlearned, naturally occurring response (salivation) to an unconditioned stimulus (food in mouth)
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uncondition stimulus
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in CC, stimulus that natural triggers a response
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conditioned response
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In CC, a learned response to a previously neutral (but now conditioned) stimulus
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conditioned stimulus
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in CC, an originally neutral/irrelevant stim that, after association w. an unconditioned stim., comes to trigger a conditioned response.
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acquisition
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in CC, the initial stage, when one links a neutral stim and an unconditioned stim so that the neutral stimulus begins triggering the conditioned response in operant conditioning, the strengthening of a reinforced response
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high order conditioning
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the conditioned stimulus in one conditioning experience is paired w. a new neutral stim, creating a 2nd (often weaker) conditioned stimulus. (afraid of dog bit--> afraid of bark)
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extinction
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diminished responding that occurs when the cs no longer signals an impending US
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spontaneous recovery
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spon. reappearance of a weakened CR after a pause
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generalization
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tendency to respond likewise to stim similar to cs (dog drool when rubbed, drools when scratched elsewhere) -can be adaptive (kids learn to be afraid of moving cars->trucks, motorcycles, etc)
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discrimination
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in CC, the learned ability to distinguish btwn a CS and stimuli that do not signal an US (adaptive)
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Thorndikes LAW OF EFFECT
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behaviors followed by favorable consequences become more likely and that behaviors followed by unfavorable consequences become less likely
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operant chamber (skinner box)
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contains bar/ kay that an animal can manipulate to obtain reinforcement
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shaping
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an operant cond procedure in which reinforcers guide behavior toward closer and closed approximations of desired behavior
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w. discriminative stimuli we can
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shape animals to respond to one stim and not another (kids whining-> attention)
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pos reinf
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add a desirable stimulus
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neg reinf
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remove an aversive stimulus
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primary reinforcers
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innately reinforcing stim that satisfy a biological need
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conditioned reinforcer
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stim that gains its reinforcing power through its association w. a primary reinforcer (secondary reinforcer) (money, good grades, pleasant tone of voice)
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reinforcement schedule
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pattern of how often a desired response will be reinforced
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continuous reinf
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reinforce desired response EVERY TIME it occurs
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partial (intermittent) reinf
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reinf a response only PART of the time which results in slower acquisition of a response but much greater resistance to extinction
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response rates higher with _____ schedules but responding more consistent when reinforcement is on a ______ schedule that a ____ schedule
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ratio, variable, fixed
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punishment
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event that decreases the behavior that it follows
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respondent behavior vs operant behavior
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automatic response to stim, operates on the environment, producing consequences
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cognitive map
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mental rep. of ones environment
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latent learning
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learning that occurs but is not apparent till there is an incentive to demonstrate it
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intrinsic motivation
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desire to perform a behavior effectively for its own sake (inner reward) (giving ppl choices enhances intrinsic)
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extrinsic motivation
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desire to perform to receive promised rewards/ avoid threatened punishment
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modeling
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observe and imitate behavior (vicarious reinforcement/punishment) esp from those we perceive similar to ourselves
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mirror neurons
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frontal lobe neurons that were believed to fire when doing activity or observing it
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memory
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learning that has persisted over time
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recall
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retrieving info that is not currently in your conscious awareness but was learned at earlier time
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recognition
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identifying item previously learned
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relearning
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learning something more quickly when learn it a second time
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3 steps to remember
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encode, store, retrieve
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connectionism
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memories are producers of interconnected neural networks
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sensory memory
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immediate, very brief recording of sensory info in memory system
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working memory
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newer understanding of short term memory that focuses on conscious processing of incoming auditory and visual and spatial info and of info retrieved from long term memory
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effortful process
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requires attention explicit memories
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automatic process
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other info skips conscious encoding and barges directly into storage w.o knowing
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PROCEDURAL MEMORY
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CLASSically conditioned associations among stim
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iconic memory
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fleeting sensory men of VISUAL stimuli
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echoic mem
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auditory stimuli (catch last few words)
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shallow processing
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encodes on basic lvl (words/letters)
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deep processing
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encodes semantically based on meaning of words
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Frontal lobes and Hippocampus
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store explicit memories
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damaged HC
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disrupts recall of explicit mems Left trouble remembering verbal info but can recall visual designs and locations Right reverse
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Frontal lobes direct
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retrieval and use of explicit memories
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HC facilitates
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encoding and storage of memories
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cerebellum forms and stores
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our conditioned responses
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basal ganglia (next to thalamus)
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controls movement, and forms and stores procedural memory and motor skills
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stress hormones provoke
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amygdala (flashbulb memories)
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long term potentiation
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inc in a cells firing potential after stimulus
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CREB
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triggers production of proteins that help reshape synapses and transfer short term memories into long term memories
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automatic processing in
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cerebellum and basal ganglia
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effortful processing in
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FLobes and HC
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working memory is also
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Short term
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retrieval cues
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come from associations formed during encoding
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priming
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to retrieve memory, must activate strand leading to it
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context-dependent mem
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putting self back in context
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state-dependent
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mems tied to emotional state when it was formed
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mood-congruent
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when were happy we remember happy things
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serial position effect
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tendency to recall 1st/last items of list. Right away-recency effect last items a while later- primary effect first items
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retrograde amnesia
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an inability to retrieve men of past (head injury or emotional trauma) OFTEN TEMPORARY
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anterograde amnesia
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can't form new longterm explicit mems
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storage decay
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memory never used
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misinfo effect
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prompts/priming cause us to remember info in a biased way
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source amnesia
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misremember source of info (deja vu)
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proactive interference
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when prior learning disrupts your recall of new info (memory of old combo interferes with new)
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retroactive interference
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when new learning disrupts recall of old info (song cover can't remember original words)
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We are more likely to recall adjectives if asked how well they describe us than if asked how well they describe someone else
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self reference effect
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The retention of encoded information over time refers to
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storage
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Although college textbooks frequently cast a trapezoidal image on the retina, students typically perceive the books as rectangular objects. This illustrates the importance of
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shape constancy
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Opponent-process cells have been located in the
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thalamus
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We are more likely to remember the words "typewriter, cigarette, and fire" than the words "void, process, and inherent." This best illustrates the value of
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imagery
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Accommodation
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process by which the lens changes shape to focus images on the retina.
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When asked how they felt 10 years ago regarding marijuana issues, people recalled attitudes closer to their current views than to those they actually reported a decade earlier. This best illustrates
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memory construction
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If rats are allowed to wander through a complicated maze, they will subsequently run the maze with few errors when a food reward is placed at the end. Their good performance demonstrates
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latent learning
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instinctive drift.
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Animals tend to revert from newly learned habits to their biologically predisposed behaviors. This is an example of
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Ewald Hering found a clue to the mystery of color vision in
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blindsight
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Rabbits fail to learn a conditioned eyeblink response when the function of different pathways in their ________ is surgically disrupted.
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cerebellum
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The process of receiving and representing stimulus energies by the nervous system is called
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sensation
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The amount of light reflected by an object relative to the amount reflected by surrounding objects is called
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relative luminance
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topdown processing
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development of pattern recognition through the use of contextual information/Information processing guided by higher-level mental processes are called
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bottom up
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, perception starts at the sensory input, the stimulus. Thus, perception can be described as data-driven/
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signal detection theory
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emphasizes that personal expectations and motivations influence the level of absolute thresholds?
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distance cues
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objects may appear bigger bc of dc
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lightness constancy
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even in shadow/light remain same
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color constancy
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even with reflected light on object color remains same
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perceptual constancy
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perceiving objects as unchanging even as illumination changes
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linear perspective
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converging lines->greater distance away
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relative height
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higher object is farther away (MOUNTAINS)
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retinal processing
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receptro rods and cones to bipolar cells to ganglion cells
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feature detection
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brains detector cells respond to specific features edges lines and angles
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helmhotz tricolor theory
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3 types of color receptor cones red blue green all colors are combos of these cones
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gestalt
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we organize sensory info into meaningful perceptions (men on stairs vs. arrows)
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binocular cues
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retinal disparity finger sausage
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monocular cues
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relative size (2 objects similar in size-perceive one that casts smaller retinal image-> farther away
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interposition
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object blocks others so its perceived as closer
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accommodation
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changing lens shape to focus
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light gets focused by
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lens
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sight begins transduction in___ and send to optic nerve
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retina
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transduction
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transformation of stimulus energy into neural impuses
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psychophysics
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relation btwn physical characteristics of stim and our psych experience with them
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bottom up processing
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analysis of stim begins w. sensory receptors and works up to lvl of brain/mind
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top down
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info processing guided by higher lvl mental processes as we construct perceptions.
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context effects
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clouded by words, situations, sounds
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perceptual set
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perceptions can be clouded by expectations of what well se, feelings, and what were motivated to see
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ganglion cell
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neuron located in the retina of the eye that receives visual information from photoreceptors via various intermediate cells such as bipolar cells
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Bipolar cells
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specialized sensory neurons for the transmission of special senses
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rods
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responsible for vision at low light levels DO NOT MEDIATE COLOR VISION
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cones
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active at higher light levels, are capable of color vision