Memory
- Created by: Beth Mitchell
- Created on: 15-04-16 19:48
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- Core theory- The Multi-Store Model
- Memory
- Key concepts
- Input
- The process of data entry
- Encoding
- The process in which data is changed into another format
- Storage
- The process in which data is held, ready to be used at a later date.
- Retrieval
- The process in which data is located and then taken out of storage.
- Output
- The process of using data once it has been retrieved.
- Accessibility problems
- The info is still in the LTM, but cannot be retrieved right then.
- It could be on the 'tip of your tongue' and if you have a cue, you might remember it later.
- Availability problems
- When the info is no longer in the LTM.
- Like when a file is deleted off a computer, gone for good.
- Input
- Alternative theory
- 2 levels of processing
- Shallow processing
- Only processes physical features like a word.
- Deep processing
- Better recall
- Gives information meaning.
- Shallow processing
- 2 levels of processing
- Memory aids
- Identified memory aids such as cues.
- A cue helps trigger and access lost info through the senses.
- A pupil could revise wearing a perfume for a subject and wear the same perfume in the exam.
- Smelling the perfume would act as a cue and help retrieve any information, aiding her memory.
- Core study- Terry's serial position effect
- APRC (aim, procedure, results, conclusion)
- Aim
- To see if memory is affected by time and space, specifically to test the serial position effect.
- Procedure
- Repeated measures design
- 39 students
- blocks of 15 TV adverts
- 10 months old
- < 30 seconds
- Independent variable
- Whether the adverts were remembered straight after and after a 3 minute delay with a written task
- Dependent variable
- Results
- Showed a serial position effect
- Immediate recall condition
- Primacy effect
- Good recall of the first adverts
- Recency effect
- Good recall of the last adverts
- Primacy effect
- Delayed condition
- Recency effect was lost.
- Conclusion
- Immediate recall condition
- First adverts
- Rehearsed
- Remembered well
- Transferred to LTM.
- Last adverts
- Remebered
- Still in STM, had not decayed yet
- Middle adverts
- Not remembered
- Displaced
- Lack of time for rehearsal
- First adverts
- Delayed condition
- Stopped them rehearsing last commercials in STM
- Displaced
- Allowed to decay
- Immediate recall condition
- Aim
- Criticisms
- Lab experiments lack ecological validity.
- Artificial settings
- Does not reflect real life situations
- Pay more attention to adverts in that situation, not real life
- Lacked construct validity
- Only a narrow measure
- More to memory than remembering TV adverts
- Not a good test of memory
- Demand characteristics
- Participants pick up cues on the aim
- Responses on second task may not be reliable or valid.
- Lab experiments lack ecological validity.
- APRC (aim, procedure, results, conclusion)
- Key concepts
- The theory
- Memory is made up of separate and distinct stores.
- Sensory memory
- Holds information about our immediate surroundings.
- Sights
- Smells
- Duration= a few seconds
- Info needs to be paid attention to in order to transfer into the STM.
- Holds information about our immediate surroundings.
- Short-term memory (STM)
- Duration= 10-20 seconds
- Capacity= 7+/-2 chunks
- If the capacity is exceeded, displacement happens.
- Displacement is where information is 'shunted' out by new information.
- If the capacity is exceeded, displacement happens.
- To keep info in the STM we need to keep rehearsing it. This is maintenance rehearsal.
- If you maintenance rehearse something for more than 30 seconds, it transfers into the LTM.
- Info needs to be paid attention to in order to transfer into the STM.
- Long-term memory (LTM)
- Information should remain in the LTM forever.
- Unlimited duration.
- Unlimited capacity.
- If you maintenance rehearse something for more than 30 seconds, it transfers into the LTM.
- Sensory memory
- Memory is affected by time (duration) and space (capacity)
- To retrieve info, it is transferred out of the LTM and back into the STM to be output.
- Memory is made up of separate and distinct stores.
- Criticisms
- Over simlifies the STM and LTM.
- STM is not just a passive store and deals with multiple inputs.
- LTM has different stores for different info.
- Over emphasises the role of rehearsal.
- Info can transfer into STM without being rehearsed, for example, tastes and smells.
- Ignores individual differences/
- It doesn't explain why people can have a better memory than others.
- Over simlifies the STM and LTM.
- Memory
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