Working Memory Flashcards
What is working memory?
Tasks where we need to temporarily store information while processing new information while we perform further processing
Examples of working memory
Understanding a spoken language
Performing mental arithmetic involving simple steps
Phone numbers
Conversations
What is the multi modal model of memory? Atkinson and shiffren
Believes that incoming information is held by 2 stores
Attended information is passed to the short term store, unattended information is lost via decay
Short term store capacity reflects digit span (7)
Rehearsed information is encoded in long term store
How is information passed through to the long term store?
Rehearsal
What processes does the short term store perform?
Rehearsal
Encoding
Decisions
Retrieval
What are the 2 sensory stores?
Iconic store - visual
Echoic store - touch, auditory
Evidence for the multi modal model of memory
Patient KF suffered brain damage due to a road accident. He had impaired short term memory for digit span (2 digits) but intact long term memory. Supports separate short term and long term memory systems. However, contradicts the short term system and short term memory system used for both working memory processes as well as storage because patient only had a problem with storage and not processes - these weren’t impaired
What does the multi modal model of memory believe about memory?
It is a processing system as well as a storage
Working memory modal - baddeley and hitch
Proposed a new working memory modal
System of temporary storage systems supporting the real time processes required for completing complex tasks
There are 3 systems - phonological loop, central executive and visuospatial scratch pad
Consists of two limited capacity space systems
The central executive controls these
What are the 3 parts of the working model?
Visuo spatial scratch pad
Central exective
What are the two limited capacity slave systems?
Phonological which stores speech information
Visuo spatial sketch pad which stores spatial and visual information
What is the phonological loop?
Processing verbal information (holding words in memory as we process what someone is saying to us, or as we prepare to say something)
Consists of 2 parts
What type of information does the phonological store access?
Auditory information has direct access and is maintained through rehearsal
Verbal information (writing) has indirect access via articulatory rehearsal - doesn’t go straight in, have to write it down, say it out loud and rehearse it for it to go in to long term memory
What is the process of rehearsal called?
Articulatory rehearsal - converts visual information (writing) to auditory information
Maintains auditory information via rehearsal
Evidence for the phonological store
Phonological similarity effect
Irrelevant speech effect
Word length effect
Articulatory suppression