Memory- WMM Flashcards
What is working memory
Short term memory in different sections based on types information
Who proposed the WMM
Baddeley and Hitch
What are the 4 sections of the WMM
Central executive, visuospatial sketchpad, phonological loop, episodic buffer
What is the central executive
Drives system, decides how attention is directed, allocates resources to slave systems, limited capacity, no permanent storage capacity
What research is there to support the central executive
Bunge (2000) - MRI used to see which parts of brain were most active during performance of one task and two at once. More activity during two tasks showing increased demand for attention on 2 tasks
What is the visuo - spatial sketchpad (inner eye)
Slave system 1, deals with visual and spatial info, limited capacity, holds info for very short time, divided into visual cache - stores visual info, inner scribe - records arrangement of objects
What researches there to support the VSS
Gathercole and Baddeley (1993) - Pt’s had difficulty tracking moving point of light and describing angles on a hollow letter F, as both require VSS use so VSS is a separate slave system
What is the phonological loop
Slave system 2, deals with auditory info and the order of info, has limited capacity, split into phonological store - store of the words you hear, articulatory control process - allows rehearsal of heard words
What research is there to support the phonological loop
Baddeley - found pt’s recalled more short words in serial order than longer ones, supporting capacity being set by how long words take to say
What is the episodic buffer
Added to original model, temporary store that links with LTM integrating all info from stores to LTM
What research is there to support the episodic buffer
Alkhakifa (2009) - patient with Beverly impaired LTM had STM capacity of up to 25 items showing buffer is needed
What is a positive evaluation point for WMM
Research support - Gathercole and Baddeley found pt’s had difficulty simultaneously tracking moving point of light and describing angles on a hollow letter F showingVSS and PL are seperate
What is a negative evaluation point for WMM
Artificial lab experiment - Baddeley asked pt’s to recall long serial words in order which is not relevant to real life scenarios - lacks external validity