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Chapter 8
vocab terms
42
Psychology
Undergraduate 1
01/12/2006

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Term
cognitive psychology
Definition
the study of mental processes by which the information humans receive from their outside environment is modified made meaningful, stored, retrieved, used, and communicated to others
Term
information processing system
Definition
recieves info, represents it with symbols, then manipulates it
Term
thinking
Definition
manipulation of mental representation
Term
reaction time
Definition
the time elapsing between presentation of a stimulus and the appearance of an overt response
Term
evoked brain potential
Definition
small temporary change in voltage on an eeg that occurs in response to specific events
Term
cognitive map
Definition
mental representation of familiar parts of your world
Term
images
Definition
mental representations of visual info
Term
concepts
Definition
categories of objects, events, or ideas with common properties
Term
artificial concepts
Definition
set of rules or properties such that each member of the concept has all of defining properties and no non member does
Term
natural concepts
Definition
concepts that have no fixed set of defining features but share a characteristics
Term
prototypes
Definition
member of a natural concept that possesses all or most of its characteristic features
Term
schemas
Definition
generalizations we develop about catergories of objects, events, and people
Term
scripts
Definition
schemas about familiar sequences of events
Term
propositions
Definition
smallest unit of knowledge that can stand as a seperate assertion
Term
mental models
Definition
contain our understanding of how things (usually physical things) work
Term
narrative
Definition
story
Term
reasoning
Definition
the process through which people generate and evaluate arguments and reach conclusions about them
Term
formal reasoning
Definition
aka logical reasoning, the process of following a set of rigorous procedures for reaching valid or correct conclusions
Term
alorithms
Definition
systematic methods that always produce a correct solution to a problem if a solution exists
Term
rules of logic
Definition
set statements that provide a formula for drawing valid conclusions about the world
Term
syllogisms
Definition
logical arguments containing two or more premises and a conclusion
Term
informal reasoning
Definition
process of evaluating a conclusion, theory, or course of action on the basis of credibility of evidence
Term
heuristics
Definition
mental shortcuts
Term
availability heuristic
Definition
involves judging the probability that an event may occur or that a hypothesis may be true and how easily the hyp or exampoles of the event can be brought to mind
Term
anchoring heuristic
Definition
estimate the probablity of the event, not by starting from scratch but by adjustinmg and earlier estimate
Term
mental set
Definition
tendency for old patterns of problem solving to persist
Term
funcitonal fixedness
Definition
tendency to use familiar objects in familiar ways over creative ways
Term
conformation bias
Definition
stick to first decision
Term
expert systems
Definition
computer programs that solve problems
Term
utility
Definition
describes the subjective, personal value of each attribute
Term
expected value
Definition
total amount of benefit you could expect to receive if the decision were repeated on several occasions
Term
group polarization
Definition
tendency toward extreme decisions
Term
language
Definition
symbols such as words and a set of rules for combining the symbols
Term
grammar
Definition
set of rules for language
Term
phoneme
Definition
smaller unit of sound affecting the meaning of speech
Term
morpheme
Definition
smallest unit of language that has meaning
Term
words
Definition
are made of one or more morpheme
Term
semantics
Definition
rules that govern the meaning of words and sentences
Term
surface structure
Definition
string of words people produce, the order in which words are arranged
Term
deep structure
Definition
an abstract representation of the relationships expressed in a sentence, various underlying meanings of a sentence
Term
babblings
Definition
first sound infants make that resemble speech
Term
one word stage
Definition
limited vocab one word at a time
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