Short term vs Long term Flashcards
What are the types of memory?
- Short term: Immediate events
- Long term: What happened in the past
State the key terminology in memory
- Capacity
- Duration
- Coding
What is meant be the term Capacity in memory?
How much data can be held
What is meant by the term Duration in memory?
How long data can last
State the 1st study involved in STM vs LTM
Jacobs (1887)
- List of numbers appear on board - remains for 10s
- Digits disappear from the board
- You have 10s to put them in order
- If correct, stand up
What was the average capacity for DIGITS in Jacobs study in STM vs LTM
9.3
What was the average capacity for LETTERS in Jacobs study in STM vs LTM
7.3
State the magic number for Capacity
7 + or - 2
Who invented the Magic Number in memory
George Miller
State the duration of STM discovered from Peterson & Peterson’s study
18 seconds
State the duration of LTM discovered from Bahrick et al’s study
48 years
State the 2nd study involved in STM vs LTM
- Peterson & Peterson
- 24 Students shown a trigram
- Asked to recall the consonant syllables
- Only 2% correct after 18 seconds
State the 3rd study involved in STM vs LTM
- Bahrick et al
- 40 people tested on their memory of classmates
- varies ages (17- 74)
- Within 15 years = 90% recall
- Within 48 years = 70% recall
- After 48 years = 30% recall
State what is meant by Coding in STM vs LTM
- Information that we store has to be written in memory in some form
What are the different forms of how memory can be coded?
- Acoustic (sound)
- Semantic (similar meaning)
- Visual
