Working Memory Model

• Working memory model 


  Developed by Baddeley and Hitch (1974)
• Four components


  Central executive, phonological loop, visuo-spatial sketchpad, episodic buffer
• Central executive


  • CE coordinates 3 other components (slave systems)
  • Has limited capacity and can't store information
• Phonological loop


  • Responsible for coordinating auditory information
  • 2 divisions: phonological store (spoken words) and articulatory process (written words)
• Visuo-spatial sketchpad


  • Stores visual and spatial information
  • Limited capacity
  • Info temporarily stored here
• Episodic buffer


  • Separate from LTM but forms important stage in long-term episodic learning
  • Capacity is limited