Module 05: Memory Structures Flashcards
encoding
acquiring info which is held in storage for later retrieval
retrieval
calling to mind previously experienced info
what is the case of clive wearing
had brain damage from encephalitis
caused severe amnesia
remember nothing more than a few minutes before
what did plato compare memory to
wax tablet on which impressions are made
modal model of memory
info is received, processed, and stored differently for each kind of memory
unattended info presented quickly stored briefly in sensory memory
attended info in STM for periods up to 20 or 30 seconds
info needed for long periods of time in LTM
describe sensory memory
the initial brief storage of sensory info, closely connected to perception
there is visual, auditory, olfactory, gustatory and tactile sensory memory
what is the partial report technique
participants informed only to recall a single row but wouldn’t know which row until after display was shown (informed by pitch)
recalled 9/12 letters in sensory memory right after display, recall dropped if tone delayed
what is the icon and how many items can be stored
brief/sensory visual memory (Neisser)
visual store could only hold around 9 items briefly
masking in icon
items can be ‘erased’ by other stimuli presented right after
what is the echo
sensory memory for auditory material
what did moray find in his study on whole report and partial report listening task
people giving partial reports could proportionally report more letters => info is stored briefly
does the icon or the echo have larger capacity
visual memory has larger capacity, but length of time info can be stored is longer in auditory store
what is the suffix effect
auditory masking, harder to recall words spoken if cue is a word
the more auditory similarity between the suffix and items on the list, the greater the suffix effect
how long does STM last
1 to 2 minutes
describe the serial position effect
recall more words at the beginning or end of a list than they do in the middle
describe the primacy effect
improved recall of words at beginning of a list
describe the recency effect
improved recall of words at end of list
results from using sensory or STM memory
what is the capacity of the short term store
7+- 2
what is chunking
chunk individual units into larger units
helps overcome limitation of 7 units in STM