Memory Flashcards
How long does sensory memory last?
Only a few seconds.
What are the 3 stages of memory?
Sensory, short term, and long term.
What is iconic memory?
The sensory memory for vision
Describe George Sperling’s experiment involving iconic memory.
Participants were shown a group of letters for a fraction of a second and were told to write them down. They could write part of the letters down, but by the time they wrote down the first letters, they had already forgotten the last ones. This shows sensory memory exists, but only for a few seconds.
What is backward masking? Who discovered this?
Ulric Neisser discovered backward masking. This is when subjects are exposed to a bright flash of light or a new pattern before the iconic image fades, the first image will be erased or forgotten. It works for the auditory system as well.
What is an icon?
A brief visual memory
What is sensory memory for auditory sensations called?
Echoic memory
What is working memory?
The type of short term memory that is needed to perform the task that someone is working on at that moment.
What did George Miller find about STM?
It has the capacity of about 7 items (+ or - 2 items).
Hint: Think phone numbers (Ex./ 555-4567)
What is the key to keeping items in the short term memory and transferring them to long term memory?
Rehearsal (repeating or practicing)
What are the 2 types of rehearsal?
Primary (maintenance) rehearsal and secondary (elaborative) rehearsal
What is primary or maintenance rehearsal?
Simply repeating material in order to hold it in STM.
What is secondary (elaborative) rehearsal?
Organizing and understanding material in order to transfer it to LTM
What is interference? What are the 2 types?
Interference is how other information or distractions cause one to forget items in the STM. 2 types are Proactive and retroactive interference.
What is proactive interference?
Disrupting info that was learned BEFORE the new items were presented, such as a list of similar words. It causes proactive inhibition.
What is retroactive interference? What does it cause?
Disrupting info that was learned BEFORE the new items were presented, such as a list of similar words. It causes retroactive inhibition.
What is Long-term memory retention measured by?
Recognition, Recall, and Savings
What does recall require?
Recall requires that subjects generate information on their own.
What are the 2 types of recall? What do they mean?
Cued recall begins the task; fill-in-the-blank tests are an example. Free recall is remembering with no clue.