Memory Flashcards
What are the 3 types of memory?
Sensory register
Short term memory
Long ter memory
How is short term memory coded?
acoustically
How is long term memory coded?
semantically
Outline the Peterson + Peterson study, duration of STM
Shown nonsense trigrams (3 random consonants)
for either 3,6,9,12,15,18 seconds
Then asked asked to count backwards in 3’s which was an interference task
after 3 seconds = 80% recall
after 18 seconds = 10% recall
What is miller’s magic number?
7+-2 items
What’s a strength of the MSM
Primacy effect
- Remembering the 1st few items from a list better than words in the middle
- The easier items in the list will have bee rehearsed
- if rehearsal is prevented by an interference task the effect disappears
Recency effect
- Remembering the last few items in the list
- Last words are still in the STM and can be recalled
What’s a limitation of the MSM
In real life people don’t always spend time rehearsing , yet they still transfer information into the LTM
The model is oversimplified
What is retroactive interference
Is where new information interferes with the ability to recall older information
What is proactive interference?
Is where older information interferes with the ability to recall new information
What’s a strength and a limitation of Interference theory?
It’s supported by lots of studies many of which were controlled laboratory experiments
In real world situations, struggling to remember French vocabulary if you later start learning German
It doesn’t go into the cognitive or biological processes involved, doesn’t explain how or why interference happens