research into coding in memory Flashcards
nature of memory 3 things
coding, capacity, duration
coding refers to
Refers to the format in which information is stored in the various memory stores / the changing of formats.
• Visual - pictures
• Acoustic - sounds
• Semantic - meaning of the experience.
Baddeley-research into coding
Baddeley (1966) presented participants with 4 lists of words.
• Accoustically similar / dissimilar
• Semantically similar / dissimilar.
• Words were presented 1 at a time
Participants were then asked to recall the correct order of the words immediately (STM)and after 20mins.(LTM)
Baddeley findings and conclusion
Findings:
When asked initially, ppts struggled to recall the correct order of acoustically similar words → Acoustic confusion
After 20mins ppts struggled to recall semantically similar words → Semantic confusion
Conclusions:
STM → Prefers to code acoustically
LTM → Prefers to code semantically.
strength-showed differences between stores
Later research showed that there are some exceptions to Baddeley’s findings, e.g. types of coding.
However, the idea that STM uses mostly acoustic coding and LTM mostly semantic has stood the test of time.
This was an important step in our understanding of the memory system, which led to the creation of the multi-store model.
limitation-artificial stimuli in Baddeley’s study
The word lists had no personal meaning to participants.
So Baddeley’s findings may not tell us much about coding in different kinds of memory tasks, especially in everyday life. When processing more meaningful information, people may use semantic coding even for STM tasks.
This suggests that the findings from the study have limited application to memory in the real world.