WORKING MEMORY MODEL

• Central executive (CE)


  The central executive has a supervisory role as it monitors incoming data. It has limited processing capacity and does NOT store information
• Phonological loop (PL)

  Division of the CE. Controls auditory information and preserves the order of information.
• Phonological store (PS)


  Division of the PL. Stores the words you hear.
• Articulatory process (AP)


  Division of the PL. Allows maintenance rehearsal - repeating words and sounds in a loop and its capacity is 2 seconds.
• Visuo-spatial sketchpad (VSS)


  Division of the CE. Stores visual and/or spatial information when needed. Limited capacity of 3/4 objects (Baddeley)
• Inner scribe (IS)


  Division of the VSS. Records arrangement of objects into a visual field.
• Visual cache (VC)


  Division of the VSS. Stores visual data.
• Episodic buffer (EB)


  Division of the CE. Temporary store for information and links WMM to LTM and wider cognitive processes such as perception.
• Strength (1)

  ✅Patient KF – phonological loop was damaged, but VSS was intact.
• Strength (2)

  ✅Word length effect – easier to remember shorter words.
• Strength (3)

  ✅Dual task performance support the separate existence of the VSS.
• Limitation (1)

  ❌Other cognitive impairments too.
• Limitation (2)

  ❌CE is the most important part but little is known about how it operates.