2. memory Flashcards
linear model
information is shown to flow through the system in one direction
passive stores
the stores hold on to information before being passed on or lost
coding
the different types/formats the brain uses to store memory
capacity
how much information can be held by a store
duration
how long information can be held in that store for before loss
sensory register
the store is not under cognitive control like short-term memory (STM) or long-term memory (LTM). sensory information coming from the senses is detected and recorded automatically. all informatiin found in the short term or long term memory stores were initially gathered by the sensory register. information is passed on to STM by paying attention
coding (sensory register)
― store depends on the sense organ that the information comes from
― iconic = vision / echoic = sound / haptic = touch / gustatory = taste / olfactory = smell
capacity (sensory register)
― very large, has to contain all the sense impressions for all the senses in the moment. however, only what is paid attention to is passed to the STM
duration (sensory register)
― very short, as low as 250 milliseconds. as so much information is held, it cannot be retained for very long. however, each store has a different duration
short term memory
short term memory receives information from the sensory register by paying attention
― STM passes information to LTM through rehearsal. this is either maintenance rehearsal (repeating the information) or elaborative rehearsal (linking to information already in LTM)
― information is passed back from retrieval, and information can be lost via displacement (new info) or decay (lost over time)
coding (short term memory)
information in short term memory is stored acoustically (in the form of sound / spoken words)
capacity (short term memory)
Miller suggested this is small, approximately 5 to 9 items and can be improved by chunking (making small sets/groups of items) which reduces the number of items overall
duration (short term memory)
short, 18 to 30 seconds. however, duration of information can be extended by verbal rehearsal