Exam 3 Flashcards

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1
Q

What are the 3 stages of memory?

A

encoding, retrieval, and storage

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2
Q

What is encoding?

A

encoding is when you are putting info from the external world into your memory.

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3
Q

What are the three encoding points?

A
  1. quality matters more than how much time you spend
  2. We can use our LTM to help better encode new long term memories.
  3. Active encoding leads to better memory than passive encoding.
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4
Q

Regarding encoding point #1, what two processes are associated with rehearsal? Explain them.

A

Maintenance: repeating information without considering the meaning or making connections.
Elaborative Rehearsal: thinking of the meaning and/or making connections.

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5
Q

Which process associated with rehearsal are we more likely to use with real life experiences? Why?

A

Our memory evolved to learn and remember our daily experiences…not learning out of a textbook. For example, remembering a party that happened once better than your exam material is easy because at the party there was an entire experience involved. Real life experiences are more like elaborative rehearsal, not maintenance rehearsal.

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6
Q

What is the levels of processing theory?

What is the basic experimental design and results supporting this theory?

A

Levels of processing theory says that there’s an obligatory series of stages visual –> phonemic –> semantic and moving through the 3 stages is how you remember something. The deeper it’s processed, the better it’s remembered.

  • Participants which didn’t know they were taking a memory test were asked to analyze words in terms of it’s physical characteristics (how many capital letters), how the word sounds (if it rhymes or not) , or what it means. (fill in the blank).
  • Fill in the blank questions were remembered more than the capital letter questions.
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7
Q

What are the limitations of the levels of processing theory?

A
  1. circular reasoning: the definition of “deep” here is subjective. Why do you remember something well? because it was processed deeply. How do you know something was processed deeply? because you remember it well.
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8
Q

How does your current long-term memory affect encoding of new memories?

A
  • The self-reference effect: relating something to yourself (or something relevant to yourself) will help you remember it better.
  • The imagery effect: pictures (viewed or imagined) are remembered better than words. ex- to remember the pair “boat…tree” better you would picture a tree with a boat in it.
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9
Q

How does organization affect encoding?

A

Encoding information in an organized manner helps your memory.

Ex: participants were presented with a list of words which were either listed randomly or by category. during free recall, participants presented with the list in a categorical organization they recalled more words.

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10
Q

What is a schema?
What is a script?
Why are you better able to remember if you can use schemas and/or scripts?

A

A schema is the knowledge a person already has about some aspect of the environment.
A script is a type of schema. It’s our knowledge of the sequence of actions that usually occur during a particular event.
Schemas and scripts are one way humans organize information and improves retrieval.

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11
Q

What is survival processing?

What was the survival processing experiment and results?

A

Survival processing is a way of encoding information in terms of surviving.

-“thinking with a stone age brain” : participants were presented with a list of words and asked to rate them in terms of “survival” or “moving”. People who rated words based on survival, resulted in better memory.

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12
Q

Why does processing information in terms of survival enhance encoding?

A

Encoding is simply an evolutionary process that helps us survive. Our memory evolved to support us living in unknown circumstances & to better predict the outcome of situations. Therefore, if we are trying to determine what would help us survive…we will remember it better.

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13
Q

What does active encoding mean and why is it better than passive encoding?
Give some examples of active encoding.

A

Active encoding helps encode material deeper so you’ll know it better and remember it better over time.

  • generation effect: you remember information better when you generate it yourself rather than just reading it.
  • retrieval practice effect: practicing retrieving the information, rather than not practicing it at all before the big retrieval, will help you better remember it.
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14
Q

What are the effects and experimental results that support the effects of active encoding?

A

Generation effect: in condition 1 the participant was given a word pair with the 2nd word partially filled out. (bread-bu____) in condition 2, the participant was just presented with word pairs.
-condition 1 did better with recalling the 2nd part of word pair than condition 2.

Retrieval practice: Condition 1- “study study”, participants reread the passage for 7 min. Condition 2- “study test”, participants read the passage and then given a free recall test for 7 min. then, everyone took a delayed test:

  • 5 min delayed test: condition 1 did better
  • 2 day delayed test: condition 2 did better
  • 1 week delayed test: condition 2 did better
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15
Q

What is the common phrase that describes a moment where you encoded something well, but still can’t retrieve it well?

A

a “tip of the tongue” moment.

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16
Q

Why is levels of processing theory still useful?

A

It does a good job at showing us how the different ways of encoding impact how well we will know it letter.

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17
Q

What are retrieval cues? Why are they important?

A

Some “cue” that helps you better retrieve information encoded into LTM. They’re important because retrieval is most likely to fail without a good retrieval cue.

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18
Q

What factors will make something an effective retrieval cue?

A

A retrieval cue is more effective if you’ve generated the cue yourself.

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19
Q

Describe the Mantyla (1986) experiment (the methods and results) that involved self-generated vs. other generated cues. What are the implications of this experiment?

A
  • participants were given a list of 504 random nouns & asked to generate 3 words associated with each noun. during the test you may either be given your 3 words, somebody else’s 3 words. Another condition never saw the original nouns prior to the 3 words.
  • the first condition (your own 3 words) was the highest scoring group, learning 91% of the nouns compared to the others 55% & 17%
  • looking at your cues takes you back to how you originally processed the words & makes it easier to retrieve it.
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20
Q

What is the encoding specificity theory?

Describe the methods and results of experiments that illustrate this theory.

A
  • when we encode information we also encode the surrounding context.
  • water vs. land experiment: participants were given words to study & would later be tested. 1/2 the group studied under water & tested under water, the other 1/2 studied on land & tested on land.
  • retrieving the words in the same place they were encoded helped improve memory.
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21
Q

What is State-Dependent Learning?

Describe the methods and results of experiments that illustrate this theory.

A
  • when we encode info we also encode our internal state.
  • happy vs sad music experiment: participants listened to either happy or sad music and studied a list of words. then were asked to recall the words while listening to either happy or sad music.
  • participants who recalled the words while listening to the same type of music during the encoding recalled more words.
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22
Q

What is transfer appropriate processing theory?

describe the methods and results of experiments that illustrate this theory.

A

how we encode something depends on the processing we do during encoding. matching the processing during retrieval enhances recall of the memory.

-participants were asked 1 of 2 questions about the target word: if it “rhymed” or “fit” properly with the rest.
ex:
t.w.(legal) rhyming: does ___ rhyme with eagle? yes or no
t.w.(train) meaning: ___ had a silver engine. Yes or no?
-test: participants were shown a word & asked if it rhymes w/ any of the previous target words.
results: the group that originally had to rhyme, tested better when asked about rhyming.

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23
Q

How does transfer appropriate processing theory contrast with the levels of processing theory?

A

the levels of processing theory says that information encoded deeper will be retrieved better, but with the experiment regarding rhyming and meaning the participants who rhymed during encoding did better on the test.

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24
Q

How are memories stored?

How did Karl Lashley “search for the engram”? What did he conclude?

A

Memories are stored (distributed) throughout the brain.
-Karl studied rats by teaching them mazes & removing parts of their brain to determine where the “memory” of the maze lives. He found that it matter much more how MUCH of the brain he removed than WHERE he removed. He concluded that memories are stored everywhere, on neural circuits.

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25
Q

What is consolidation?

A

consolidation makes memories more permanent than they were before. ( less fragile, more resistant to disruption/change )

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26
Q

Why are older memories more resistant to interference?

A

because of proactive interference (new information interferes with the consolidation of old memories).

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27
Q

Why is levels of processing theory still useful?

A

It does a good job at showing us how the different ways of encoding impact how well we will know it letter.

28
Q

What are two types of consolidation? Describe them.

A
  1. Synaptic consolidation: occurs in small time increments, minutes or hours and causes physical changes at the synapse.
    - Long term potentiation: after time, repeated activity can strengthen the synapse due to structural changes with a greater neurotransmitter release & increased rates of firing.
  2. systems consolidation: occurs in larger increments of time, months or years and causes physical changes at bigger regions of the brain (ex-cortex, hippocampus)
29
Q

What are the two theories of systems consolidation?

A
  1. standard model

2. multiple trace theory

30
Q

According to the standard model of systems consolidations what happens in regard to connections between the cortex & hippocampus as memories get older?

A

When you experience something your cortex is stimulated in different areas (top of brain). Then your cortex sends that stimulation (as a signal) to your hippocampus and begins making a “map” of these signals. Over time, after many more stimulations, the cortex no longer needs help from the hippocampus.

31
Q

How does the standard model of consolidation explain retrograde amnesia?

A

brain injury- degree of connection across the cortex increases, so old memories are fine but new memories can’t be stored because the hippocampus can’t strengthen connections if it’s damaged.

32
Q

What is the multiple trace theory?

A

says that the hippocampus is still involved in the retrieval of remote (episodic memories).

33
Q

what does the multiple trace theory suggest the role of the hippocampus is in older memories? describe evidence for this theory.

A

people studied pairs of stimuli and imagined the pairs interacting with each other. subjects were tested 10 minutes later and 1 week later. during the test they were asked if they KNOW, DID NOT KNOW, or just REMEMBER seeing the pairs. if they did know or remember they were asked if the subject can “see” the pair (mentally time travel-episodic) or if they just..know (semantic).
-the hippocampus wasn’t involved 1 week later with semantic memories, but was just as involved with episodic memories.

34
Q

What is reconsolidation?

A

retrieved memories become fragile & need to be consolidated again.

35
Q

How can an already consolidated memory become labile (vulnerable to change) again?

A

Anisomycin: injecting this before consolidation leads to memory loss, injecting it after has no effect on memory unless you reactivate the memory in which it blocks (erases) that memory.

36
Q

Describe the experiment with rats & a protein synthesis blocker which illustrates how reconsolidation makes memories more fragile.

A

Over the period of 3 days, in 3 different conditions, rats were tested with a loud noise to scare them and the drug anisomycin. in cond 1 on day 1 the rat heard the sound and was immediately administered the drug. nothing happened on day 2, and then on day 3 the rat was no longer scared of the noise. in cond 2 on day 1 the rat heard the noise and got scared. on day 2 he was administered the drug and on day 3 he was still scared. in cond 3 on day 1 the rat heard the noise and was scared, on day 2 he heard the noise and was scared and then was immediately administered the drug and then on day 3 he heard the noise and was not scared anymore.

-administering the drug “anisomycin” after experiencing a fear could help alleviate the fear.

37
Q

What are autobiographical memories?

A

Memories for specific experiences from our life. Can include semantic & episodic memories.

38
Q

What does the “multidimensional nature” of autobiographical memories refer to? What is the experimental evidence of this multidimensional nature?

A

It may draw upon all 5 senses & often involves emotion. Ruben & Cabeza asked participants to take 40 specific pictures around Duke’s campus. They viewed the pictures that the experimenter took and then viewed them all during the fMRI machine & asked if it was their own photo, the experimenter’s photo, or if they had never seen it before. The photos from the lab and own photos activated many of the same regions, but own photos had more widespread activation because taking the picture involved more than just looking at the picture.

39
Q

How does damage to the visual cortex affect autobiographical memories?

A

It causes retrograde amnesia because it involves loss of access to the visual material of the memory.

40
Q

What are the three autobiographical memory points?

A
  1. memories in real life are more complicated than memories in the lab
  2. Now is the time of your life in which you will retain the most memories (give or take 5 years)
  3. What’s “special” about flashbulb memories is NOT accurate when looking at actual memory.
41
Q

Describe the pattern of memories from over a lifetime.

  • During what age are memories well-remembered? During what age are memories not well-remembered?
  • How are autobiographical memories sampled?
A

Memories between ages 18-25 are well-remembered.
Memories in the period before 10 years old are not remembered well (infantile amnesia 2-4 yrs)
Autobiographical memories are sampled through the Galton-Crovits Cueing Technique: give a list of words & respond with the 1st autobiographical memory that comes to mind.

42
Q

What is the reminiscence bump?

A

more memories during the period around 20 yrs old are better remembered than any other years. The galton-crovits cueing technique was done to 55 year olds who found that the most memories came from the 20’s.

43
Q

What are three hypotheses which describe why we have a reminiscence bump?

A
  1. Self Image Hypothesis: memory is enhanced for events that occur as a person’s self-image/identity is being formed.
  2. Cultural Life Script Hypothesis: culturally expected events that occur at a particular time in the life span (social norms) are easier to recall because the cultural life script cues them.
  3. Cognitive Hypothesis: periods of rapid change that are followed by stability cause stronger encoding and consolidation.
44
Q

What is a flashbulb memory?

A

Extremely vivid, long-lasting memories for UNEXPECTED, EMOTIONALLY LADEN, & CONDEQUENTIAL events.

45
Q

How did Brown & Kulik (1977) first describe flashbulb memories? What did they think was special about these memories?

A

They believed these memories worked like the “now print” mechanism where our memory says “oo this is significant” and takes a picture, explaining why they’re long-lasting, detailed, and very vivid.

46
Q

What is actually special about flashbulb memories?

A

We BELIEVE we remember flashbulb memories more accurately which distinguishes them from other types of memory.

47
Q

Describe the “Challenger Explosion” experiment. What did this experiment teach us about these types of memories?

A

Researchers interviewed 36 college students 24hours after the challenger experiment & again 1.5-2 years later. 3 people had minor discrepancies with their original story, 22 people were wrong on major attributes of their story and 11 people were wrong on ALL attributes. It taught us that these memories weren’t necessarily different in the context of remembering them well, just different in the fact that we THINK we remember them well.

48
Q

How does accuracy and belief in accuracy change over time for flashbulb memories? For everyday memories? Be able to describe the Talarico & Rubin (2003) study on flashbulb memories of September 11th.

A

Many highly-confident people were wrong. There’s no correlation b/t confidence & accuracy.

49
Q

How does emotion affect memory? How does it affect gist memory? Memory for peripheral details? Describe the study that compared gist vs. peripheral memory (the “clown” picture study)

A

Emotion may increase the feeling of remembering. It helps us remember that the event occurred… the “gist” of the event, but hurts our ability to remember the peripheral details.

  • People looked at negative/neutral pictures with colored borders. Later, they showed some that had been seen before and some new ones and they had to make the old/new judgment & a remember/know procedure. If you said yes to remembering it you also answered if you actually remembered seeing it, or if you just know it was seen before. And what color the border was.
  • People were more likely to “remember” emotional pictures (instead of just knowing it) and less likely to correctly report the color around the pictures.
50
Q

How may flashbulb memories arise from normal memory processes?

A

The narrative rehearsal process is the idea that we remember some life events better than others because we rehearse them.
Media coverage can also make people talk more about the event after or on its anniversary.

51
Q

What does it mean to say memory is reconstructive?

- What types of information/sources do we use to reconstruct memories?

A

It doesn’t stay the same, it changes. Encoded/stored memory can be combined with general knowledge, past experiences, cultural thinking/schemas, emotional states, current thoughts, and/or expectations.

52
Q

Describe Bartlett’s War of the Ghosts experiment. What are the implications of this experiment?

A

Barlett read “war of ghosts” (a folklore story not of british culture) to british school boys and asked them to retell the story at different intervals. The retellings included alot of inaccuracies that reflected the person’s own culture.

**Memory is reconstructed from different sources.

-Bartlett suggested to get rid of the notion that memory is reproducible. “Literal recall is extraordinarily unimportant”

53
Q

Why is the reconstructive nature of memories a good thing?

A
  1. Storing everything is not economical.

2. Construction allows you to update & fill in “gaps” of memory.

54
Q

What is source monitoring?

A

The process of determining the origins of our memories, knowledge, & beliefs.

55
Q

What is a source misattribution error? Why do they occur?

A

Confidently attributing the source of some info or contents totally wrong. They happen because we attribute the source wrong.

56
Q

Describe the “Becoming Famous Overnight” experiment. What did this experiment teach us about source misattribution errors?

A

Larry Jacoby showed people names and were told which names were and weren’t famous. They then were tested on which names were famous. The immediate test group identified most of the names correctly, but the 24 hour (delayed) test group misidentified sone names.
-The “feeling of familiarity” made the delayed group think some non-famous names were famous…they lost the “source” of info.

57
Q

What are some famous “lies” that may have actually been source misattribution errors? Why might they have been memory errors and not lies?

A

Reagan told a story that he claimed happened to him, but was really just the plot for some 1940’s movie. Joe Biden said he went to visit kids after a shooting when he was stil VP, but he wasn’t VP the year he was talking about. They might’ve remembered the story they told, and the things they claimed to do…just not at the time they claimed it. They attributed the source of their memory wrong.

58
Q

How can false memories form?

A

inaccurate perception, inference, emotions, misinformation, misattributions, and fuzzy tracing.

59
Q

What is the DRM effect? How does it demonstrate false memories?

A

The DRM effect involves the DRM paradigm which is when people recall critical “lures” with high confidence. A list of words is read off to participants (themed) and the participant writes down as many as they can recall. Often, the list theme may be something like “sleep” but the word sleep wouldn’t have actually been said…they still “recall” that word and write it down.

60
Q

What is the “Lost in the Mall” technique? What is involved in this technique and how does it lead to false memories?

A

During the pre-induction, parents were interviews to be sure the person hadn’t actually been lost in the mall and to get pictures of the participant during their childhood. # interview sessions were spread across weeks which involved guided imagery & “retrieving” the memories of being lost. They even photoshopped some of the children’s photos to make it seem like the “false memory” was real!
-1/4 of participant’s had complete false memories, ~56% had partial false memories.

61
Q

What kinds of false memories can arise and how can they arise? **memory war

A

During the late 80’s and early 90’s people were coming out of therapy saying they had recovered horrific memories of rapes and sexual assault. Lots of people suddenly began taking people to trial solely based on “recovered memories”. More false memories include Mazzini witnessing a person being demonically possessed. Heaps and Nash, almost drowning as a child. You can also induce negative false memories about fattening foods, or positive false memories about healthy food.

62
Q

What is highly superior autobiographical memory?

A

hyperthymesia: a claim that you cannot forget (remember everyday of your life)

63
Q

What is life like for Jill Price and others with hyperthymesia? What may be the cause for their remarkable memories?

A

She is always replaying memories in her head and thinking about what she could’ve done better/differently. Could be a form of “ocd” where the person is “hoarding “ memories… they often keep a detailed life journal .

64
Q

Does memory work differently in people with this syndrome? Are they susceptible to false memories?

A

They may have anatomical differences like enhanced temporal activity (hippocampus), and they are still susceptible to false memories!

65
Q

What are the implications of the reconstructive nature of memory in legal settings?

A

Eyewitness testimonies aren’t as accurate as previously thought.

66
Q

What is the misinformation effect and how can it lead to errors? Describe experiments demonstrating this effect and describe three explanations for this effect.

A

Misleading information can change how a person remembers and describes an event later.
Loftus would show participants videos or slides of car accidents and ask leading questions like “did the person stop at the yield sign, or traffic sign?” “did you see A or THE broken headlight”…
-subtle word choice totally changes the participant’s answers (memory).

67
Q

Why can eyewitnesses confidently misidentify the wrong person? What kinds of techniques and policies can police adopt to reduce eyewitness misidentification?

A
  1. retroactive interference: recent learning interferes with previously learning information
  2. source monitoring error: mixing up the source of memory & think what they remember actually happened
  3. reconsolidation: after recalling the memory, the reconsolidation process might replace old information with new incorrect information.

-blind sequential procedures