working memory model

• Working Memory Model components

  Central Executive

  ↕️

  Visuo-spatial sketchpad

  Episodic buffer

  Phonological loop

  ↕️

  Long term memory
• clinical evidence

  P: strength - clinical evidence

  E: KF's immediate recall of letters he read better than when letters were read to him

  E: so his phonological loop was damaged but his visuospatial sketchpad was intact

  L: therefore evidence to support existence of different stores
• counterpoint

  P: limitation - other cognitive impairments

  E: KF's injury was caused by a motorcycle accident

  E: so trauma from the accident may have affected his cognitive ability

  L: therefore clinical evidence challenged
• dual-task performance

  P: strength - evidence for visuospatial sketchpad

  E: When ppts asked to perform visual and verbal tasks, performance is similar to if tasks performed differently

  E: However when two verbal or visual tasks are performed together, performance declined

  L: therefore separate visuospatial sketchpad
• nature of central executive

  P: limitation - lack of clarity over nature of CE

  E: CE most important but least understood component of WMM

  E: CE needs to be more clearly specified than just attention

  L: therefore CE challenged the integrity of WMM