Memory Flashcards
What is the duration of short term memory?
18 seconds unless items are rehearsed done acoustically (sound)
What is the duration of long term memory?
forever if items are rehearsed (done semantically (have meaning)
What is coding?
how information gets stored
What is capacity?
how much information can be held in a store
What was Millers research on Capacity?
that the short term memory could remember 7 give or take 2, 5 words can be remembered as well as 5 letters.
Peter + Peterson STM experiment?
24 undergrad students given a constant syllable and 3 digit syllable to remember then asked to count back from 3 digit number till told to stop this prevents mental rehearsal
Duration of LTM Bahrick?
392 PPts 17-74 use high school year books, for photo recognition and free - recall to see what they remember
within 15 yrs of grad 90% on photo after 48 it was 70%
15 years free recall was 60% after 48 it was 30%
Limitation of Baddely study for STM?
(type of material used Meaning or no Meaning)
he didn’t use meaningful material, words meant nothing to PPts people remember semantically better with meaningful information
Limitation of jacobs study?
done a long time ago so lack of extraneous variables.
Limitation of Millers STM study?
overestimated STM capcity, disproved by Cowan 2001 who said 4 chunks
Peterson + Peterson study limits?
artificial stimulus and lack of external validity?
Strength of Bahricks LTM study?
(year book)
high external validity as used real life memories,
90% culd idenitfy names and faces
14 years after and 60 years after 60% could
What is a multi store model?
three stores of memory and how they work and how info goes from one to another and how it gets forgotten.
What is a sensory register?
memory stores for our five registers, Coding uses sensory, like visual, acoustic.
How does STM memory coding and what is duration?
acoustically, 18-30
What is maintenance rehearsal?
repeating over again and over again. rehearse it long enough passes it to long term.8
What is the serial position effect?
What’s at the beginning of a list gets remembered better than what is at the end as the beginning gets rehearsed more.
A03 + on the Serial position effect?
High reliability
standardized procedures
supports Atkinsons STM theory
A03 - on Serial position effect?
lack of generalisability
lack of mundane realism
What is a + of the MSM?
supported by research of STM (acoustic) and LTM (semantic) memory and that they are different.
What is a limitation with MSM when using STM ?
there is more than one type of STM one for visual and one for auditory
How does rehearsal show an issue with MSM?
once again only explains for one type of rehearsal
What is the definition of episodic memory?
memory for events in our lives (wedding day)
What is the definition of procedural memory?
memory for how things are done (playing video games, typing)