Chapter 6&7 Flashcards

1
Q

What is long-term memory?

A

Vast library of more durable, stored memories. Rehearsal=encoding (STM—LTM). Unlimited capacity, unlimited duration.

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2
Q

What is the serial position effect?

A

Items learned near the beginning or end of the list are much better remembered than items in the middle.

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3
Q

What do the primacy and recency effects demonstrate (serial position effect)

A

Primacy- demonstrates LTM (as there was lots of rehearsal at the start of the list)
Recency-demonstrates STM due to it being the last few items. (we can eliminate this if we add in a delay before we ask you to repeat)

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4
Q

Who proposed the levels of processing theories?

A

Craik and Lockhart-deeper processing=better encoding.

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5
Q

What is shallow processing (levels of processing theory)

A

Involves little attention to meaning-focuses more on physical features, happens somewhat automatically.

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6
Q

What is deep processing (levels of processing theory)

A

Requires conscious effort-pay attention to meaning.

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7
Q

What was Craik and Tulving’s experiment on deeper processing?

A

3 groups were given a list of words- each group answered a different question about each word on the list. (are the words uppercase or lowercase letters, does the word rhyme with _____, would the word make sense in this fill in the blank sentence?)

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8
Q

What were the results of Craik and Tulving’s task?

A

The best scores were on the fill in the blank task, as it had the deepest level of processing, the worst score was on the capital letters test.

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9
Q

What are some other ways you can enhance memory?

A

Visual imagery, Dual coding, self-reference, generation effect, retrieval practice, organizing information

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10
Q

What is visual imagery?

A

Forming mental pictures that connect things visually

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11
Q

What is the paired associates task (visual imagery)

A

Study pairs of unrelated words. Had one group repeat the words, and the others imagine the two words together. People did much better when they were imagining visually what the words were.

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12
Q

What is dual coding theory?

A

Proposed by Alan Paivo, says we can remember things visually and or verbally, but encoding things BOTH ways is way better than 1. However, it’s way easier to visualize concrete objects

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13
Q

What is self-reference?

A

Relating things to yourself improves memory for that information. People remember things a lot better if they relate the meaning to themselves. (paired associates can test this)

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14
Q

What is the generation effect?

A

Generating material yourself rather than passively receiving it improves memory.

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15
Q

What is the paired associates task with regards to the generation effect?

A

A list of related words was given. Group A was just given the list then asked to remember it, Group B had to come up with the second word on their own through fill in the blank. Group B remembered 28% more!

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16
Q

What is retrieval practice?

A

After studying, taking a practice test is more effective for learning than rereading material.

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17
Q

What was Roediger and Karpicke’s retrieval test?

A

People read a passage, then completed math problems. Then, half the people were given a recall (practice) test, while the other half re-read the passage. Some time later, everyone was given the “Real test”.

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18
Q

What were the results of Roediger and Karpicke’s test?

A

As delay increases, practice test group performs significantly better.
If there was a short delay, the rereading group was slightly better.

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19
Q

What is organization of information?

A

Relates to chunking; allows more information through the bottleneck of STM.

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20
Q

What is hierarchical encoding?

A

Somewhat related to chunking-people tend to spontaneously organize things, and items from these categories can act as retrieval cues.

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21
Q

What are retrieval cues?

A

Any stimulus that helps a person remember information stored in memory.

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22
Q

What was Timo Mantyla’s test?

A

Asked students to do 504 word associations; “Write down three words you think of when I say ____”
Then, they had a surprise test! Asked what was the original word? For half of the words, the 3 words generated by that person were given, and for the other half, words someone else generated were given.

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23
Q

What were the results of Timo Mantyla’s test?

A

Person was better at remembering when given their own generated list of words.

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24
Q

What are the 4 aspects of good retrieval cues?

A

1) Self-generated cues 2) Humorous/distinctive cues 3) Multiple cues 4) Well-rehearsed cues

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25
Q

What is the encoding specificity principle?

A

Memory is best when conditions of retrieval are the same (or similar to) conditions during encoding.

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26
Q

What is context-dependent memory?

A

It is easier to remember in the same (or similar) environment to which something was learned- focus is on EXTERNAL cues.

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27
Q

What was Baddeley’s Scuba diver study? (Context-dependent memoy)

A

Divers learned a list of words on land OR underwater-then tested on land/water in a 2 by 2 design (people who learned list of words on land were tested in lan AND underwater, and vice versa)

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28
Q

What were the results of Baddeley’s Scuba Diver study?

A

People given list of words on land scored better on land, and vice versa for people underwater.

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29
Q

What is state-dependent memory?

A

It’s easier to remember if we are in the same or similar state to when it was learned (internal conditions, mental/physical state).

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30
Q

What is mood-congruent recall?

A

Tendency to recall things from the past that match our current mood-can cause downward or upward spiral, big implications for cognitive behavioural therapy.

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31
Q

What is explicit memory?

A

Conscious or intentional memory-can talk about/explain it (aka declarative).

32
Q

What are the 2 types of explicit memory?

A

Episodic- Our personal experiences, episodes of our lives

2) semantic memory- general facts and knowledge.

33
Q

Can semantic knowledge and episodic memory influence one another?

A

YES. It influences what details we attend to-knowledge of what’s important, likely/unlikely.

34
Q

Can episodic memory enhance semantic knowledge?

A

YES. We tend to remember things of personal significance better (ex: If you saw a band live in elementary school you’re more likely to remember the members names).

35
Q

Which type of memory is more easily lost?

A

Episodic. Can be lost and you will only recall the semantic memory (Ex: meet someone at a party, in the first little bit, you think back to the party to remember their names. BUT after a few years of knowing them, you just know what their name is and can’t remember the party)

36
Q

What is implicit memory?

A

Unconscious memory-can’t really report the contents o this memory

37
Q

What are the 3 types of implicit memory?

A

Priming, Procedural memory, and conditioning

38
Q

What is priming?

A

Changes in behaviour caused by previous experience with the same or similar stimuli.

39
Q

What is procedural memory?

A

Memory for how to do something

40
Q

How do we test priming?

A

We have to disguise explicit memory. First, disguise purpose of the priming stimuli, usually by making people answer some question. Also, disguise purpose of test. Then get people to perform a word completion task-they’ll usually pick a word closer to ones they’ve already seen.

41
Q

What is repitition priming and conceptual priming?

A

Repetition- repeating a word I saw before

Conceptual- Repeating a concept I saw before

42
Q

What is korsokoff’s syndrome?

A

Anterograde amnesia caused by alcoholism.

43
Q

What is the experiment by Graf et al that was done with patients with Korsokoff’s syndrome?

A

Took 3 groups of participants (Korsokoffs, alcoholic control, and medical inpatient)
Asked them to rate how much they liked each word.
Then given 2 tests (recall word you rated-explicit memory)
OR Word completion task (implicit)

44
Q

What were the results of Graf et al’s experiment?

A

Amnesiacs did considerably worse on the recall test, but actually did slightly better than the other groups on the word completion test.

45
Q

What does Patient Jimmy G have and what does this mean?

A

Anterograde amnesia-inability to form new memories, doesn’t have any episodic memory from last 20 years of life due to damage to the hippocampus. HOWEVER, this only affects declarative memory!

46
Q

How did Warrington and Weiskrantz study patients with Koroskoffs?

A

Patients were shown incomplete pictures and asked to name the object-shown the photo as more and more complete until they could name it. They were asked to do it again, and by day 3, they were much quicker to name the photo even though they couldn’t even remember doing the task in the first place.

47
Q

What is the Propaganda effect?

A

People are more likely to rate statements as being true simply if they have been exposed before. Renders facts meaningless, as this occurs even if the person thinks a statement is false OR if they are told it is false.

48
Q

What does the mirror tracing task show in patient H.M.?

A

That he has normal procedural memory. Even though he never remembered doing the task, he still learned how.

49
Q

What does the hippocampus deal with?

A

Long-term, declarative memory formation.

50
Q

What is classical conditioning?

A

Pairing a neutral stimuluus with an unconditioned stimulus-eventually the neutral stimulus comes to produce the conditioned response on its own-requires nonexplicit memory.

51
Q

What is long-term potentiation?

A

Enduring changes in synaptic strength between neurons that fire together- when neurons fire close together in time, they become more likely to fire together in the future.

52
Q

What is the physical change that happens to neurons when the synaptic strength changes?

A

Development of more ridges on the presynaptic neuron so there’s more surface area for neurotransmitter release. Postsynaptic neuron develops more receptors.

53
Q

How did lesions and ablations help us determine things about memory?

A

Lesions and ablations impaired memory, but it didn’t seem as if any specific area of the brain was more or less important. Confirmed that memory is spread throughout the brain.

54
Q

What areas of the brain are involved in the different types of memory?

A

Sensory: Iconic and Echoic store- involved with visual cortex and auditory cortex
Working memory-Generally involves frontal lobes (prefrontal cortex). Additional areas depend on the type of WM (remembering tune of a song= auditory)
Long-Term: Hippocampus is involved in short-term long-term transfer (declarative memories)

55
Q

What is consolidation?

A

Process of crystallizing memory into a stable, long-term format.

56
Q

How does consolidation usually occur?

A

Through reactivation during sleep or rehearsal.

57
Q

Where are long-term memories usually stored?

A

In cortical circuits and connections

58
Q

What is the standard model of consolidation?

A

Says that the hippocampus is only important for storing memories in the short-term, then shifts to the responsibility of the cortex.

59
Q

What happens during reactivation?

A

Brain areas that were activated during the day are reactivated during sleep-typically occurs during REM.

60
Q

What did Moore’s Water Maze demonstrate?

A

Shows place cells firing in exactly the same order during sleep for an activity that was done during the day.

61
Q

What did a study where lesions were given to the hippocampus either before or after learning a task show?

A

That damage to the hippocampus does not prevent the retrieval of an existing memory-just prevents creation of new memories.

62
Q

What is the multiple trace hypothesis?

A

Hippocampus is involved in both short-term storage and in recalling a memory. (remember Atkinson Shiffrin model that says that whatever we are thinking about currently is also part of the STM)

63
Q

What type of memory is the cerebellum involved in?

A

Procedural memory

64
Q

What is encoding failure?

A

Shows that just because we are exposed to something doesn’t mean we’ll actually remember it.

65
Q

What is the memory decay theory?

A

Suggests that time and disuse of certain memories cause them to decay-this theory is not well supported.

66
Q

What is the memory interference theory?

A

Says that we forget things because other pieces of information interfere with our ability to recall it-more likely with similar items.

67
Q

What is retroactive interference?

A

When the most recent thing learned interferes with the first thing learned.

68
Q

What is proactive interference?

A

When the last thing learned interferes with the most recent thing learned.

69
Q

What is retrograde amnesia?

A

Can’t remember some period of time prior to the event (event being head trauma etc)- usually can’t remember what happened from a few minutes beforehand

70
Q

What is psychogenic (dissociative) fugue?

A

TV amnesia, not common AT ALL.

71
Q

What is anterograde amnesia?

A

Person can’t form new long-term memories AFTER the onset of amnesia. Quite rare, but extremely severe.

72
Q

What is dementia?

A

Clinical term for impaired memory and cognition due to neurological degeneration.

73
Q

What is alzheimers disease?

A

Form of dementia-progressive brain disorder causing forgetfulness, confusion, disorientation, and poor judgement. Brain plaques and tangles-can cause retrograde and anterograde amnesia.

74
Q

What is infantile amnesia?

A

Most people cannot recall anything from before they were 3-4 years old-there are slight exceptions, mostly major life events.

75
Q

Why does infantile amnesia happen?

A

Hippocampus is not yet mature, lower encoding abilitiy, massive amounts of interference, infants have a different way of encoding since they don’t use language early on, but later on we use language to retrieve and encode.

76
Q

What is prospective memory?

A

Remembering to do something in the future-involves memory, attention, planning.

77
Q

Do people with better retrospective memory have better prospective memory?

A

Not necessarily… sometimes it seems to be the exact opposite.