there are separate and distinct stores for memory, each linked together but with their own capacity and duration.
what is capacity?
a measure of how much can be held in memory
what is capacity represented in?
bits of information, such as number of digits
what is duration?
a measure of how long a memory lasts before it is no longer available
what is coding?
the way information is changed so that it can be stored in memory
what are the 3 types of coding?
visual, acoustic and semantic
what is short-term memory?
your memory for events in the present or immediate past
what is long-term memory?
your memory for things that have happened in the more distant past
what is environmental stimuli?
all information we process every day but have no recollection of
whats the capacity of the sensory register?
very large/unlimited
whats the duration of the sensory register?
less than 1 second
whats the encoding type of the sensory register?
sense specific
whats the capacity of the stm?
7±2 items
whats the duration of the stm?
18-30 seconds
how is the stm encoded?
acoustically
whats the capacity of the ltm?
unlimited
whats the duration of the ltm?
up to a lifetime
how is the ltm encoded?
semantically
what is the first step in remembering something?
paying attention
what may sensory memory for visual stimuli be called?
iconic memory
what may sensory memory for aural stimuli be called?
echoic memory
what may sensory memory for touch be called?
haptic memory
what is filtering?
environmental information that we consider irrelevant is filtered out by a bottleneck filter and forgotten
what happened in H.M.?
a patient had his hippocampus removed and he lost the ability to form new long-term memories
who claimed that the capacity of the short term memory was 7±2?
george miller
who coined the ‘serial position effect?
murdock
what is the primacy effect?
words at the start of the list have been processed through stm and are in ltm
what is the recency effect?
words are still in stm and so are easily accessible
what is the serial position effect?
The tendency to remember items at the beginning and end of a list better than those in the middle.
what area of the brain is associated with the stm?
pre-frontal cortex
what area of the brain is associated with ltm?
hippocampus
who investigated the duration of stm?
margaret and lloyd peterson
what did peterson and peterson find?
short term memory has a duration between 18 and 30 seconds
who investigated the duration of ltm?
bahrick et al
what did bahrick et al find?
90% accuracy for face and name recall after 34 years. 80% accuracy for name recognition after 48 years. 40% accuracy for face recognition after 48 years. 60% accuracy for free recall after 15 years. 30% accuracy for free recall after 30 years
what is the support for the msm?
the serial position effect or location of brain associated with stm and ltm
what is the counter for the msm?
data from lab study - ecological validity/mundane realism
what is the alternative for the msm?
working model of memory
what is the practical application for the msm?
improve recall ability
what are the issues and debates of the msm?
uses both idiographic and nomothetic methods to provide support for the mode