memory-explanations of forgetting Flashcards

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1
Q

what is proactive interference

A

where an older learning/an older memory affects recall of new information/an older memory

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2
Q

give two examples of proactive interference

A

-when you get a new phone number and your old phone number disrupts the learning of you new phone number
-when your birthday goes and you tell people your old age instead of new

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3
Q

what is retroactive interference

A

where new learning/memory may affect recall of old information

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4
Q

give an example of retroactive interference

A

-if you learnt to drive a manual car then get an automatic you may struggle to remember how to drive a manual car

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5
Q

when is it likely that interference will occur

A

when material is similar as it creates response competition

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6
Q

what did chandler state

A

students who study similar subjects at the same time often experience interference

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7
Q

who suggested the two explanations for interference

A

ceraso

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8
Q

what are the two explanations for interference

A

competition of response theory
unlearning theory

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9
Q

what is the competition of response theory

A

new information has shifted to where the old information was. We still attempt to retrieve old information from this location which results in errors in memory

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10
Q

what is the unlearning theory

A

new learning replaces previous learning so that the old learning is unlearnt

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11
Q

who found the supporting evidence for proactive interference

A

keppel and underwood

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12
Q

what did keppel and underwood find

A

they had a laboratory experiment where participants were presented with a consonant trigram
-they then had to count backwords is 3s to prevent rehearsal of the trigram
-participants remembered trigrams that were presented first regardless of interval length

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13
Q

what does this experiment suggest

A

that proactive interference occurred as material was similar (both trigrams)

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14
Q

what are some + and - of keppel and underwoods experiment

A

+high control over extraneous variables as it was a lab experiment so you can be sure the only thing affecting the IV was the DV so it has high validity
-lacks ecological validity-its an artificial contrived situation which doesn’t reflect memory in real life

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15
Q

who found the supporting evidence for retroactive interference

A

schmidt

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16
Q

what did schmidt find

A

-211 participants were given a map of the molunburg neighbourhood with 48 street names replaced with numbers
-they found a positive corrolation between number of times they had moved house and the number of street names forgotton

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17
Q

evaluate schmidt study

A

-other extraneous variables could affect how well we can recall street names eg-having memories associated with that street
-its a eurocentric study (Dutch)

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18
Q

which two studies support the idea that similarities affects interference

A

baddely and hitch
AND
mcgeoch and mcdonald

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19
Q

what did baddely and hitch find

A

-rugby players had to try and recall the names of teams they had played against
-the time interval between the start to end of the season was the same but number of games played was different as some players had missed games eg-due to injury
-it was found that forgetting was more due to the amount of games played rather that the time passessed

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20
Q

how does baddely and hitchs experiment support interference theory

A

as it shows similarities lead to confusion supporting the idea that forgetting occurs when material is similar

21
Q

evaluate baddely and hitchs experiment

A

-high in ecological validity as its a field experiment which means its true to memory in real life

22
Q

what did mcgeoch and mcdonald find

A

they gave participants a list of adjectives (list A) the gave them list b to learn and tested their recall of this
when list B was…
synonyms-12%
nonsense syllables-26%
numbers-37%

23
Q

what does mcgeoch and mcdonalds experiment suggest about interference

A

as the list with synonyms was recalled worst it shows interference is more likely to occur when material is similar

24
Q

what are two criticisms of interference theory

A

-that it only explains forgetting when two sets of information are similar
this doesn’t happen very often so doesn’t explain forgetting in real life setting
-it doesn’t tell us much about the cognitive processes involved in forgetting

25
Q

supporting evidence for retrival failure being due to the lack of cues

A

Tulving and Psotka

26
Q

what did tulving and psotka do

A

gave participants 24 words each organised into 6 categories
-recall was 70% for the first word but fell as participants were given additional lists of words to learn presumably due to interference
-however at the end they were given a clued recall test-they were told the names of the categories as a clue -recall rose to 70%
-suggests interference disappears when given a clued recall

27
Q

how is interference theory useful to real life

A

-helps us understand that in order to memorise something we need it to stand out eg-by making up a rhyme or song
-advertisers also know that they have to space there adverts apart from rival brands

28
Q

what is cue dependent forgetting

A

cue dependent forgetting sees recall as dependent upon retrieval cues prompt or triggers which are stored at the same time as memory

29
Q

what is recall dependent on in cue dependent forgetting

A

recall is dependent upon accessing information by remembering the retrieval cue under which information was stored

30
Q

what is context dependent failure (environmental)

A

-this occurs with external retrieval cues
-this is when forgetting occurs when external environment is different at recall from how it was encoded thus inhibits memory

31
Q

what is state dependent failure (emotional/physical)

A

-this occurs with internal retrieval cues
-this is when forgetting occurs when an Individuals internal environment is different at recall to when information was encoded

32
Q

what is an example of a context dependent cue

A

eg- a place, weather, smell

33
Q

what is an example of a state dependent cue

A

eg-being in a different mood or state or arousal may inhibit a memory
trying to recall information learnt sober when you are drunk

34
Q

who are the two people that found supporting evidence for context dependant failure

A

abernethy
godden and baddeley

35
Q

what did abernethy find

A

he found after learning some material participants who were tested on the material in an unfamiliar room with an unfamiliar teacher recalled it less well than participants who were tested in a familiar room with a familiar teacher

36
Q

what does abernethy study suggest

A

that we need context cues to recall information

37
Q

what did godden and Baddeley do

A

they go 13 male and 5 female divers
they gave them a list of 36 words of 2-3 syllables to recall

38
Q

what was the recall when learning was on water and recall was on land

A

23%

39
Q

what was the recall when leaning was on water and recall was on water

A

32%

40
Q

evaluate godden and baddeleys study

A

+helps us improve memory in places like schools and workplaces
-it was a repeated measures design so order effects may have taken place and participants may have done better through practice or worse due to boredom

41
Q

the two people who found supporting evidence for state dependent failure

A

darley
overton

42
Q

what did darley find

A

he found that particpents who hid money while high on marijuana were less able to recall where the money was when not high than when they were high again-supporting state dependant failure as an explantion for forgetting

43
Q

what did overton find

A

he got participants to learn information either sober or drunk and found recall was worse if they were in a different internal state at recall then their internal state at coding.

44
Q

which tasks did overtons memory task include

A

verbal-rote learning task, word association task and picture recognition task

45
Q

why is this a weakness

A

as it lacks mundane realism as drunk/high people don’t usually do thus task

46
Q

what is another alternative explanation of forgetting

A

repression-where emotionally threating events are thought to be banished into the unconscious memory to prevent feelings of anxiety they might cause

47
Q

what did williams find in regards to repression

A

38% of females had no recall of the earlier abuse and of those who did recall it 16% reported that at one time they hadn’t been able to recall it

48
Q

what do williams findings suggest

A

that painful memories can be forgotten then later recovered supporting the idea of repression

49
Q

how is this information useful in real life

A

+helps us overcome forgetting in everyday situations
+its useful in forensics and police work it asks eyewitnesses to recall every detail of the crime
it may even ask witnesses to go to the scene of the crime to recreate context cues
+useful to patients with dementia if the are exposed to smells that were common in there younger days these could act as cues triggering memories difficult to locate in LTM