Mrs Lanzack (Memory) Flashcards
What is the capacity of STM?
-Discovered by _____________
7 +/- 2
Miller
Evaluation of STM Capacity:
-Miller’s findings have no been _________. C__________’s studies found that STM capacity is likely to be _ chunks
-Size of ________ matter. —> shorter memory span for ____________ chunks and better for _________ chunks. This supports the fact that STM is limited.
replicated. Cowan
4
chunks
larger & shorter.
AO3 STM Evaluation - Individual Differences:
-J_________’s found that recall _____________ as you got older.
- At 8 years old, you could remember on average . digits and the average at 19 years old is .
-Supports the idea that STM is not fixed and individual differences play a role.
Jacob’s. Increased.
6.6 then 8.6
Key Terms:
Capacity - Measure of how much can be _____ in memory.
.
held
Coding
How information is changed so it can be stored in memory. Info enters the brain via senses (eyes,ears) then stored in forms such as visual, acoustic or semantic codes.
Duration
Measure of how long memory lasts before it is no longer available
______________ & ________________ found that the duration of STM was _ to __ seconds long.
How did Petersons’ test this?
Peterson and Peterson
3 - 18 seconds long.
Tested 24 students over 8 trials, gave them a consonant syllable and a 3-digit number, and asked them to recall after 3 second intervals.
Bahrick et al. tested 400 people of ages __ to __, on their memory of classmates by using a photo recognition test.
15 years after graduation, __% accurate. 48 years after graduation, __%.
17 to 74
90, 70
STM Duration Evaluation:
- Testing wasn’t ___________ because trying to memorise consonant syllables doesnt reflect ____________ memory activities.
-However we do memorise fairly useless things such as ________ numbers and-_____________, so it does have relevance to everyday life.
- Petersons’ experiment was due to _____________ instead of decay because counting numbers may “overwrite” the syllables that were ?
natural
everyday
phone
postcodes
displacement
displacement
Baddeley used lists that were acoustically and semantically the same for the test. He found that they had difficulty remembering the acoustically similar in STM but not LTM. and semantically similar words were good for STM but not for LTM
Test shows that acoustically similar words could be recalled in STM but only the meaning of the semantic list could be recalled
Coding Evaluation:
-Brandimote et al. found that people can use _________ coding in short-term memory (STM) when they’re given a _________ task, like looking at pictures, and can’t use _________ rehearsal (they were told to say ‘la la la’) before trying to remember the visuals. So they used visual codes to try remember.
This showed that STM isn’t _______________
-visual
-visual
-verbal
exclusively acoustic.
AO3 Coding Evaluation:
-Baddeley may have not tested LTM because
-This doubts the _________ of Baddeley’s work.
when he gave the particpants the list of words, he tested them after a few minutes, not 20 minutes.
validity
Sensory Register (MSM) holds information at each of the _________.
-Capacity is very ______ but most info doesnt receive much information so it lasts a very short duration (a few ______________)
senses
large
milliseconds
Attention (MSM) - if attention is focussed on one store, that information will then be transferred to ___.
- First step in ______________ something.
STM
remembering
STM (MSM) - is used for quick tasks, like solving a math problem or recalling directions to a friend’s house.
- But, it’s not very sturdy - it ________ fast if you don’t ___________ it.
-STM can only hold so much; if you stuff it with new info, the old stuff gets _________ out because it has ____________ space.
decays, rehearse
pushed
limited
A___________ and S_________ suggested that the more you practice or repeat something in STM, the stronger it becomes in your ___. This repeating process is known as _______________ _____________
atkinson & shiffrin.
LTM
maintenance rehearsal.