PSY270 MAY 31.docx

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Published on 19 Aug 2012
School
UTSG
Department
Psychology
Course
PSY270H1
PSY270 MAY 31, 2012
MEMORY PROCESSES
MOVE FROM ONE SYSTEM TO ANOTHER MODULAR
SERIAL PROCESSING ONE AT A TIME
BU VS TD, WHAT INFLUENCE THESE PROCESSES
MEMEORY PROCESS
- ENCODING (ENCODING IS PROCESS TO PUT INTO CODE)
- STORAGE TECH IS A PROCESS ONLY HOLDING INFO
- RETRIEVAL
- FORGETTING HAPPENS IN MEMORY ALLL THE TIME, COULD BE A RESULT OF STORAGE DECAYED
OR RETREIVAL NOT ACCESIBLE
STM
- Storage acoustically and visually, can code it semantically
- Process/maintenance rehersal stored in the same code as it is encoded for a short time but
can be maintained via rehersal
- Encoding attention transfers info from sens memory to stm
Stm retrieval
- How we retrieve
- Main question is do we retrieve serially one by one
- Or parallel stm in one go
- Trickier question, how we know process during recall, we look at accuracy not tell us anything
how. Rxn time cant control which one get one then don’t say bc you want all of them
Sternberg
- See memory set
- In short term
- And show target letter
- Only one response did not need to recall anything yes or no absent trial target absent
- Also present trials
- Also varied set size of 1 to more
- Up to set of 6
Contd
- Had to encode memory
- Then want know retrieval stage
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- So
- Encode test probe put letter in mind
- Then search through stored memeory set one search 1, two search 2, go through multiple
times
- Then had to make response
- Everything was controlled no variability only thing was controlling memeroy set and any
change would be scanning the items
Possible outcomes
- Serial has set increased increase rxn time, tell us search process was serial,
- Parallel flat line, number of set wouldn’t matter same rxn time same search time, two lines
wouldn’t matter present or absent one line present the other absent
- Serial search two outcomes rxn time faster for present then absent and saw this with mem or
visual search, if present, if absent have to look through everyhtig
- Serial set size increase rxn increase, no diff present or absent, if find it in memeroy set still look
if 3 still continue to check 4 5 6
Results
- Rxn time as list length increased it is serial
- Also found rxn time present and absent was same so echaustive pattern he got and replication
people got same
- Could in theory mean parallel search serial self term would be different time
- Best analogy how parallel groery shopping come home live on 3rd floor 6, bags take one bag at
a time carry up so increase time number of bags or do parallel 1 trip with 6 bags not take same
amount of time 1 bag eas, 3 bags heavier, 6 heaviest weighed down even in parallel still have
increasing time with more items could mean parallel but hard to do search with 6 items
- Cant tease them apart some think serial some parallel
- Stick with serial exhaustive most accepted bc not efficient search
Stm forgetting
- 2 theoires of forgetting
- Decay things just fade if we don’t rehearse
- Interference cant remember bc something gets in the way slots full cant put anything new
have to remove
- Ri new getting in way of old
- Pi old effects new info
Serial position curve
- Items presented first remembered best and middle down and improve at end
- Primacy begin and recency at end
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- Recency is greater then primacy effect tasks down with declarative memory
- Beginning more time to rehearse start at beginning able to rehearse able to transfer to long
term memory
- Recency effect haven’t had time to decay
- How know sep and diferrence systems
- Eliminate one wihtiut the other
- Get rid of one without other
- Don’t ask to respond right away effect recency bc decay primacy in ltm
- Serial recall effect recency
- Fast showing them not enough time to rehearse
- Serial position always primacy effect more then recency bc lazy trying to remember items,
primacy look at right a beging lot of rehearsal ones at end peple strgety
Serial position
- Decay
- Or interference don’t know either
- Decay cant rehearse in middle cant rehearse bc rehearse beginning
- Less likely
Interference
- Beging effect ri
- End by pi
- Items in middle effected by both types of interference
Release from pi
- How able to remmebr new things
- 3 items 3 fruits and delay backwards by 3 prevent rehearsal
- Tell me itmes
- Again three backwards by 3 abd end 3
- 3 different fruits 3 fruits
- Release from p1
- Remember all 3 in 1st and drop off
- Couldn’t remove old from new
- 3 vegies 3 meats 3 profesions
- Fruits it plateuaed better in veggies insign
- Increase with meats and proffesions back from tio
- This known as proactive interference more difffernt more likely release different meaning so
semantic
- Code in stm semantically we pay attention to categories
Tulving
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Document Summary

Encoding (encoding is process to put into code) Storage tech is a process only holding info. Forgetting happens in memory alll the time, could be a result of storage decayed. Storage acoustically and visually, can code it semantically. Process/maintenance rehersal stored in the same code as it is encoded for a short time but can be maintained via rehersal. Encoding attention transfers info from sens memory to stm. Main question is do we retrieve serially one by one. Or parallel stm in one go. Trickier question, how we know process during recall, we look at accuracy not tell us anything how. Rxn time cant control which one get one then don"t say bc you want all of them. Only one response did not need to recall anything yes or no absent trial target absent. Also varied set size of 1 to more. Encode test probe put letter in mind.

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