WMM

• Central Executive


  Controls attention and allocates resources to process information from any sensory modality. It has limited capacity, so it sends data to the slave systems to free up space for incoming data. It is the most important component that has overall control and supervises the slave systems.
• Central Executive


  • Controls attention and allocates resources
  • Processes information from any sensory modality
  • Has limited capacity, so sends data to slave systems
  • Most important component with overall control and supervision of slave systems
• Phonological Loop


  Deals with auditory information and acoustic coding. It has limited capacity and duration. It has two parts: the phonological store which stores the words you hear, and the articulatory process which maintains rehearsal to keep the memory in a loop while needed.
• Phonological Loop


  • Deals with auditory information and acoustic coding
  • Has limited capacity and duration
  • Phonological store stores heard words
  • Articulatory process maintains rehearsal
• Visuo-spatial Sketchpad


  Stores visual and spatial information. It has limited duration for temporary storage and unlimited capacity for 3-4 objects. It has two parts: the visual cache which stores visual data, and the inner scribe which records the arrangement of objects in the visual field.
• Visuo-spatial Sketchpad


  • Stores visual and spatial information
  • Has limited duration for temporary storage
  • Has unlimited capacity for 3-4 objects
  • Visual cache stores visual data
  • Inner scribe records arrangement of objects
• Episodic Buffer


  An added component by Baddeley in 2000 that integrates information from the slave systems and long-term memory into a unified episode.
• Baddeley and Hitch's model was criticized for being too simplistic because it described memory as made up of single junction stores and focused only on short-term memory, without explaining how information is encoded and retrieved.
• Clinical evidence from Shallice and Warrington's case study on patient KF

  Showed that short-term memory for auditory information was greater than for visual information, supporting the idea of separate slave systems in the Working Memory Model.
• Experimental evidence from Baddeley (1975)

  Showed that people had more difficulty doing a visual and a verbal task at the same time compared to doing them separately, because both tasks were visual and competed for the same slave system, supporting the idea of separate slave systems.