Models of memory Flashcards
Multi-Store memory model - Key componenets
- sensory memory
- Short term memory store
- Long-term memory store
Multi-Store memory model - Sensory memory
This section does not process information. It’s function is to detect information and hold it until it is transferred to short term memory or lost. There are several components of the sensory memory store but two commonly focused components are Iconic Memory and Echoic Memory.
• Capacity: this is limited by sensory perception.
• Duration: Is very short, normally a variation of a few seconds across components.
• Condition: Requires attention, information that is attended is stored in the memory.
Multi-Store memory model - Short Term Memory
Short-Term Memory:
* Capacity: 7±2 chunks of information * Duration: Dependent on modality but limited to 30 seconds * Condition: Increasing the duration of short term requires rehearsal
Multi-Store memory model - Short Term Memory
Long-Term Memory:
* Capacity: Currently estimated to be virtually unlimited. * Duration: Decades and years * Condition: Contextual clues
Multi-Store memory model -Evaluation
Evaluation:
• When does Sensory Memory become considered STM?
• Is there a physiological basis for memory stores
• Is information mono-directional?
• Is rehearsal a sufficient enforcing method?
• Structure over process bias
• Oversimplifications
Working memory model - Key Components
- Central executive
- Visuospatial sketchpad
- Phonological loop
Working Memory model - Visuospatial sketchpad
This component holds visual and spatial information.
Working Memory model - Phonological loop
This hold sound information and has two main areas
• Phonological store
• Articulatory rehearsal component
The phonological store holds these information passively such as storing someone’s speech. The articulatory rehearsal component turns visual stimuli into sounds such as the pronunciation of words as well as rehearsal of information in the inner ear, by repeating these words we are increasing duration of working memory and transferring information to long term storage.
Working Memory model - Central Exectutive
A system that allocates resources between the visuospatial sketchpad and phonological loop. In this sense it is considered a manager for the two systems.
Working Memory model - Episodic Buffer
This is a component that integrates information from other components and links it to long term memory structures.
Working memory model - Evaluation
• Physiological correlations to this model
Holistic Model
• Integrate findings from work on short term memory
• Does not overemphasize the role of rehearsal
• Degree of complexity is more difficult to test empirically
• Difficult to test the model in its entirety and rather its components individually are tested-thus difficult to falsify
Does not take into account of sensory or LTM structures
Glanzer and Cunitz aim
Investigate how order and chronology affects memory
Glazner and Cunitz method
Condition 1
A sample of 240 military enlisted men were presented with recordings of 20 word lists consisting of one syllable nouns. Immediately after hearing the words they were made to do a free recall task for two minutes.
Condition 2
Researchers introduced a delay at the end of the task and before allowing them to free recall objects for 30 second using a filler task of counting backwards from a given number thus preventing rehearsal.
Glaner and Cunitz Results
Participants were better at remembering words at the start of the list (primacy effect) and at the end of the list (recency effect).
Condition 2
The resulting data indicated that participants were still successful at recalling words from the start but were no longer able to remember words from the end of the list. Thus the primacy effect s preserved but the recency effect was not.
Conrad and Hull 1964 aim
The effect of rhyming on memory A.K.A Phonological similarity effect.