Working Memory Model Flashcards
central executive
monitors incoming data and allocates tasks to appropriate slave systems- limited processing capacity
phonological loop
deals with auditory info. split into 2 parts: phonological store (inner ear) and articulatory process (allows maintenance rehearsal)
visuo-spatial sketchpad
deals with temporary storage of visual and spatial info. limited capacity. subdivied into visual cache and inner scribe
episodic buffer
added to model in 2000. brings together material from other systems into single memory
strength- case study of KF
shallice & warrington- KF: impaired verbal STM but intact visual memory= separate components in STM. this supports WMM but challenges MSM
weakness- lack of empirical evidence
capacity of central executive has never been measured= difficult to determine limits= remains vaguely defined and not reliable
strength- more comprehensive than MSM
less emphasis on rehearsal- explains how info can enter LTM without rehearsal, suggesting other processes influence memory storage
weakness- lacks ecological validity
much of the research for WMM is lab studies = highly controlled may not be representative of the real world
weakness- incomplete explanation of memory
model focuses on STM and does not explain how info is transferred to LTM= incomplete explanation compared to MSM