Memory Flashcards
What is Short term memory (STM)
-The limited capacity memory store
-Coded acoustically
-Capacity 5 to 9 items
-Duration 18 seconds
What is Long term memory (LTM)
-Permanent memory store
-Coded semantically
-Unlimited capacity
-Duration of a lifetime
Who and how discovered the different types of coding
-Baddely (1966)
-Used 4 groups and having them remember similar or different sounding words
Evaluate Baddely’s research on coding
-Artificial stimuli: word list had no personal meaning to paricipants so does not explain processing meaningful information
-Identified the multi store model through STM and LTM
What is the sensory register
-Coding modality specific (echoic or iconic)
-Capacity is huge
-Duration very brief
-Transferred to STM through attention
How are memories transferred from the STM to LTM
through prolonged rehersal and maintenance rehersal: repeating the material over and over again
How is information recalled in the MSM
memory transferred back to STM through retrieval
Evaluate the multi store model
-Case study support: H.M had his hippocampus removed in surgery, could not form new memories but performed well on STM tests
-Studies of amnesia (K.F) show different STM’s for auditory and visual material
-Transfer to LTM more about meaningful processing than maintenance rehersal
-Bygone model: evidence of more than one type of STM and LTM
Name the three types of LTM
-Episodic
-Semantic
-Procedural
Who discovered the different types of LTM
Tulving (1985)
Evaluate the types of LTM
-Clinical evidence: HM could not recall episodic memories but could semantic ones (forgot stroking a dog but knew what a dog is) COUNTERPOINT: brain injury patients do not represent the general population
-Conflicting neuroimaging: research links semantic to Prefrontal cortex, Episdodic to right, different to Tulving
-Real world application: old age memory loss improved by intervention to target episodic memory
What is the working memory model (WMM)
Representation of STM suggesting STM is a dynamic processor of different information using subunits coordinated by a central decision making system
Who created the WMM
Baddely and Hitch (1974)
Name the different parts of the WMM
-Central Executive
-Phonological Loop
-Phonological Store
-Articulatory Process
-Visuo Spatial Sketchpad
-Visual Cache
-Inner Scribe
-Episodic Buffer
What is the Central Executive
-Monitors incoming data
-Coordinates the 3 subsystems
-Allocates processing resources
What is the Phonological Loop
-Auditory information
-Preserves order in which it arrives
-Phonological store: stores words you hear
-Articulatory process: allows maintenance rehersal
What is the Visuo-Spatial Sketchpad
-Process visual and spacial information in a mental space “the inner eye”
-Visual Cache: stores visual data
-Inner Scribe: records arrangement of objects
What is the episodic buffer
-Integrates subsystems
-Records order of events
-4 Chunks
-Links WMM to LTM
Evaluate the WMM
-Clinical evidence: KF had poor auditory memory but good visual memory, damaged PL but VSS fine COUNTERPOINT: brain injury patients lack generisability to others
-Dual task performance: difficult to do two verbal tasks or two visual tasks at the same time, but one visual and verbal ok (Baddely)
-Central executive very important but least understood subsystem