Memory AO1 Flashcards
coding in sensory stores
encoded in the format it is received
coding in STM
Baddeley (1966) found coding in STM is acoustic
coding in LTM
Baddeley (1966) found coding in LTM is semantic
capacity of sensory stores
very large
capacity of STM
7+-2. Jacob’s (1887) digit spam:
-9.3 digits
-7.3 letters
capacity of LTM
unlimited
duration of sensory stores
less than 1 second
duration of STM
18 seconds. Peterson and Peterson (1959) suggest duration is less than 18 seconds.
duration of LTM
Potentially unlimited. Bahrick et al (1975) :
-photo recognition
-free recall
store for touch
haptic store
store for sight
iconic store
store for hearing
echoic store
multi-store model of memory
(Atkinson and Shiffrin 1968)
diagram of working memory model
(Baddeley and Hitch 1974)
components of phonological loop
-articulatory control system (repeating)
-phonological store (hearing)
components of visuo-spatial sketchpad
-inner scribe (spatial)
-visual cache (visual)
what does the central executive do
-directs attention to tasks
-controls the slave systems
what is the word length effect
short words recalled better than long words. Baddeley 1984
what is the episodic buffer
Baddeley (2000) - episodic buffer is extra storage but limited capacity. provides temporary storage for PL and VSS
episodic memory
-INFO ABOUT LIFE EVENTS
-time stamped
-conscious thoughts + is declarative
-right prefrontal cortex
semantic memory
-INFO ABOUT WORLD (general knowledge)
-conscious thoughts + is declarative
-not time stamped
-left prefrontal cortex
procedural memory
-MUSCLE MEMORY
-associated with cerebellum and motor cortex
