Overview
researchers credited for this technique
who are John Brown, Lloyd Peterson, and Margaret Peterson?
three consonant syllables presented to participants with a three-digit number afterwards
what are trigrams?
3 parts of rehearsal
what is association, location, imagination?
how we store info for a brief time to complete tasks; how we process new and old info
what is working memory?
the Brown-Peterson technique
What is the process of participants counting backwards from a specific random number in 3 or 4s until a red light appeared; purpose to prevent rehearsal
The second experiment revealed that the likelihood of forgetting the trigram was related to
how much time rehearsal had taken place
the purpose of their studies
the longer researchers distracted participants by letting them count
the less likely they could remember the trigram
old info confuses the retrieval of new info
examples of rehearsal in working memory
repeating a name or phone number to remember it; repeating what you are going to say before a speech; repeating what you just watched in a video, repeating new info, etc.
independent variable
the amount of time between first hearing the trigram, and having to recall the trigram
new info stops remembering of old info
what is retroactive interference?
according to their hypothesis, if new info is not rehearsed right away
info will be lost from the short-term memory
another term for this memory exercise
distractor technique
when rehearsal is not allowed, short-term memory has a shorter duration, so therefore without rehearsal info will not transfer to long-term memory