Memory Lecture 1

Memory Lecture 1

1. Working (short-term) memory-temporarily holds a LIMITED amount of infomation

   • ANOTHER NAME: shortterm memory
   • for storage and processing of informtion of which we are conscious of
     • Can utilize info from short term or long term memory
   • Capacity: Can hold 5-9 meaningful items (7+-2)
     • DURATION: about 20 seconds
   • Braddley's model of working memory
     • PHONOLOGICAL LOOP AKA:Auditory working memory
       • For auditoy information
       • subvocal rehearsal
         • Saying things in your head
         • Associated with larynx movements
     • VISUOSPATIAL SKETCHPAD
       • for visual and spatial info, also codes for information and movement
       • FURTHER DIVIDED INTO
         • VISUAL CACHE
           • form and colour
         • INNER SCRIBE
           • Spatial and movement: plus visual rehearsal
     • EPISODIC BUFFER
       • Intergration and manipulation of phonological, visuaspatial, and long-term memory
     • CENTRAL EXECUTIVE
       • The boss
       • Controls what we pay attention to, manipulation in WM, and call forth from LTM
         • Related to executive functions (attention, planning, etc.)

2. Long Term Memory

3. Sensory Memory- briefly holds sensory info

   • Iconic-visual info
     • fractions of a second
   • Echoic-auditory info
     • 2 seconds
     • Phonemic restoration phenomenon
       • missing sounds filled in by the brain
       • top-down processing
         • dont know what was missing
   • Haptic Memory
     • sensory info related to touch
     • Involve somatosensory cortex
     • last about 2 seconds
     • Important for assesing tactile characteristics