memory
persistence of learning over time through encoding, storing, and retrieval of information
encoding
the processing of putting information into the memory system
storage
the retention of encoded material over time
retrieval
the process of getting information out of memory storage
sensory memory
immediate, very brief recording of sensory information
The Atkinson Schiffron 3-Stage Model (1968)
belief that information is processed from sensory memory, to short term memory, to long term memory
iconic memory
visual sensory memory (less than 1 second)
(you can glimpse an "icon")
echoic memory
auditory sensory memory (lasts a few seconds)
short term memory (STM)
few items (7 +/- 2 seconds) encoded briefly that lasts about 30 seconds. goes to LTM or is forgotten
long term memory (LTM)
relatively permanent encoded information that is limitless
effortful processing
attention and conscious effort (rehearsal)
explicit memories
(declarative memories) memory or facts and experiences that one can consciously know and "declare"
automatic proccessing
unconscious encoding of incidental information (example: how many times a commercial is played and how often you notice)
implicit memory
(nondeclaritive memory) retention independent of conscious recall (impossible to explain)
chunking
organizing items into familiar, manageable units. often occurs automatically
mnemonics
memory aids, especially those using vivid imagery and organizational devices (example: guy cheating at the card game at the casino)
acronym
(type of chunking) typically 1st letter technique (example: remembering the solar systems)
peg-word system
pre-memorizing a list of words that are easy to associate with the numbers they represent (example: grocery list)
method of Loci
method of memorizing info by placing each item to be remembered at a point along an imaginary journey (example: cheating guy at the casino)
spacing effect
people encode more effectively when study is distributed evenly vs. a massive study session
testing effect
enhanced memory after retrieving, rather than simply rereading information
shallow proccessing
encoding on a basic level based on structure and appearance of words
deep processing
encoding based on the meaning of the words, tends to yield best retention
self-reference effect
people more easily remember material that is personally meaningful
hippocampus
associated with declarative memory
flashbulb memory
clear moment, emotionally significant moment or event (associated with the amygdala)
infantile amnesia
conscious memories of first three years are blank
cerebellum
associated with nondeclararitive memory
procedural memories
motor and cognitive skills
semantic memories
general facts and knowledge of the world
long term potentiation
increase in a cell's firing potential after brief, rapid stimulation
recall
retrieving information from memory
recognition
identifying the target from possible targets (example: multiple choice quiz)
retrieval cues
stimuli that help retrieve a certain memory
Priming
the activation, often unconsciously, of a particular association with a memory
state-dependent memory
what we learn in one state (drunk or sober) may be more easily recalled in that state
mood-congruent memory
tendency to recall experiences that are consistent with one's current mood (sad or happy)
serial position effect
our tendency to recall best the first and last items in a list
anterograde amnesia
inability to form new memories (explicit memories)
retrograde amnesia
inability to retrieve information from the past (explicit memories)
encoding failure
we cannot remember what we do not encode
storage decay
(Ebbinghaus Forgetting Curve) forgetting initially rapid then levels off
proactive interference
the disruptive effect of prior learning on the recall of NEW information
retroactive interference
the disruptive effect of new learning on the recall of OLD information
repression
Freud theory
unconsciously banishes from consciousness anxiety-arousing thoughts, feelings, and memories
misinformation effect
incorporating misleading information into one's memory of an event
source amnesia
source misattribution
deja vu
"I've experienced this before"
concepts
a mental grouping of similar objects, events, ideas, or people
prototypes
a mental image or best example of a category (your personal representation)
creativity
the ability to produce new, unusual, or valuable ideas
convergent thinking
narrows available problem solutions to determine the SINGLE BEST solution (example: intelligence tests)
divergent thinking
expands number of possible problem solutions (example: creativity tests)
trial and error
repeated and varied attempts which are continued until success
algorithm
a methodical, logical rule or procedure
grantees solving, is time consuming, and exhausts all possibilities
heuristic
rule-of-thumb strategy, make judgement and solve problems efficiently, a short cut
insight
a sudden realization of a problems solution
confirmation bias
a tendency to search for information that confirms ones perceptions
fixation
an inability to see a problem from a fresh perspective (this impedes problem solving)
mental set
a tendency to approach a problem in a particular way, especially if it has worked in the past
functional fixedness
the tendency to think of things only in terms of their usual functions (example: brick)
repressentativeness heuristics
judging the likelihood of things in terms of how well they match our prototypes
availability heuristics
estimating the likelihood of events based on their availability in our memory. If it comes to mind easily we presume it is common
overconfidence effect
overestimate the accuracy of your belief or judgments
framing
the way an issue is posed significantly affected depending upon how an issue is framed
belief perseverance
clinging to your initial conceptions after the basis on which they were formed has been discredited (example: supporting a losing team)
phonemes
smallest distinctive sound unit (l, y, ch)
morphemes
smallest unit of meaning in a language (a, i, cat)
grammer
system of rules in a language
semantics
set of rules by which we derive meaning in language
syntax
rules for combining words into grammatically sensible sentences
babbling stage
spontaneously utter various sounds
one-word stage
say one word at a time
two-word stage
telegraphic speech, typically 2 words
brocas area
controls language expression
wernickes area
comprehends language and controls reception
aphasia
impairment of language (typically left hemisphere)
inborn universal grammer
(Noam Chomsky) acquisition so fast that it cannot be explained. most of it is unborn (language acquisition device)
Whorf's Linguistic Relativity (Determinism)
idea that language determines the way we think
motivation
need or desire that energizes and directs behavior
instinct
a complex, unlearned behavior that is rigidly patterned throughout a species
drive reduction theory
physiological need creates an aroused tension state (drive) that motivates an organism to satisfy the need (aim is to achieve homeostasis)
incentives
positive or negative stimuli that lure or repel us
optimum arousal theory
people are driven to perform actions in order to maintain an optimum level of physiological arousal
Yerkes-Dodson Law
performance increases with arousal only up to a point, beyond which performance decreases
Maslow's Hierarchy of Needs
pyramid of human needs
self-actualism
living up to your fullest, most unique potential
glucose
form of sugar- major source of energy for body tissues
(low levels=hunger)
lateral hypothalamus
brings on hunger
stimulate= animal will begin to eat
lesion= animal will have no interest in food
ventromedial hypothalamus
depresses hunger
stimulate= animal will stop eating
lesion=animal will continuously want to eat
set point theory
hypothalamus= "thermostar" general stable weight
body below weight -> increased hunger, lower metabolism