ltm memory and msm Flashcards
what are the 3 types of LTM
semantic
episodic
procedural
what is the definition of memory
the process of retaining and retrieving information after the original material is no longer present
what is semantic LTM
memory for facts and knowledge can be created from episodic LTM
what is episodic LTM
memories from personal events
what is procedural LTM
action based (muscle memory)
what are the 3 types of encoding
visual, acoustic and semantic
what are the 3 stages of memory
encoding, storage and retrieval
what is encoding
creating a chemical trace in the brain
which occurs during presentation of a stimulus
transforms input into a form that can be registered and stored by memory.
what is the capacity of STM
7+/- 2
what is the capacity of LTM
potentially unlimited
what is the method used to aid remembering things short term
chunking
what are the 3 separate memory stores
sensory register
stm store
ltm store
the STM and LTM stores are what type of stores?
unitary stores
what does the memory store model describe
the process by which information is transferred from one store to another.
this happens in a linear way
what are the processes that information is transferred and what stores are these between
attention for sensory register to STM
rehearsal for STM to LTM
how is information encoded in the STM
mainly acoustic
how is information encoded in the LTM
semantically
what is the capacity for the sensory register store
very large as it is always receiving information
how is information encoded in the sensory register store
it is modality specific eg iconic encoded
and it is in a relatively unprocessed form
what is the capacity of the sensory register store
very large
what is the duration of the sensory register store
a quarter of a second
what is the duration of the STM
18-30 seconds
what is the duration of the LTM
potentially unlimited
what is the capacity of the LTM
potentially unlimited
the sensory register store has lots of sensory registers they are also known as
passive stores as we do not consciously control what goes in
what 3 sensory registers
iconic- visual
echoic- auditory
haptic- touch
how is information transferred from the sensory register to the STM
through attention as this mechanism allows us to select relevant information and discard the rest
what is the capacity of the STM
7 +- 2
what are the 6 points to describe the MSM
structural model with 3 stores (e, c, d)
what is/isnt unitary
information passes in a linear way
MSM explains the transferal on info (attention and rehearsal)
the more info is rehearsed the more it can be recalled
how info is forgotten at each stage
how is info forgotten from the sensory register
it decays
how is info forgotten from the STM store
displacement or decay
how is info forgotten from the LTM store
interference (2 similar memories competing or being asked a question or thinking of something else)
retrieval failure (not having the right cues)
