Working memory model

• What is the working model of memory an improvement of?

  Short term memory store
• How does the working memory model differ from the short-term memory store?

  It explains processing of auditory and visual information
• What are the components of the working memory model?

  • Central executive
  • Phonological loop
  • Visuospatial sketchpad
  • Episodic buffer
• What is the role of the central executive in the working memory model?

  It controls and directs attention to information
• What is the capacity of the central executive?

  Low
• What does the phonological loop process?

  Auditory information like sounds and words
• What are the two sections of the phonological loop?

  Phonological store and articulatory process
• What does the visuospatial sketchpad process?

  Visual and spatial information
• What are the two processors of the visuospatial sketchpad?

  Visual cache and inner scribe
• What is the function of the episodic buffer?

  Integrates and stores information
• Who added the episodic buffer to the working memory model?

  Baddeley in 2000
• What is the coding type of the phonological loop?

  Acoustic
• What is the coding type of the visuospatial sketchpad?

  Visual
• What is the capacity of the phonological loop?

  What can be said in two seconds
• According to Cohen, what is the capacity of the central executive?

  Four items plus or minus one
• What does dual task performance study demonstrate?

  • Separation between slave systems
  • Better performance with different tasks
• What did the case study of KF demonstrate?

  Separate processes for verbal and visual memory
• What type of evidence supports the existence of the episodic buffer?

  Biological evidence from brain scans
• What are criticisms of the central executive?

  • Not fully operationalized
  • Acts as a homunculus
  • Lacks clear definition
• What is a positive criticism of the working memory model?

  • More accurate than short-term memory store
  • Describes memory as an active processor
• What is the function of the inner scribe

  Records the arrangements of the objects in the visual field to give a complete picture
• Why is the central executive not properly defined

  The term processed is very vague and the CE may be made up of several, sub components
• How did shallice and Warrington patient KF support the WMM

  Kf had poor stm recall for auditory stimuli but an increased recall for visual stimuli so this suggests that the parts of memory that process visual and auditory info is seperate
• How does dual task performance support the separate existence of the visuospatial sketchpad

  Baddeley showed that pps had more difficulty doing two visual tasks than doing both visual and verbal tasks at the same time