Chapter Seven - LTM (Encoding, Retrieval, Consolidation) Flashcards

1
Q

What is encoding?

A
  • process of acquiring info

- transforming it into LTM

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2
Q

What is retrieval?

A

-transferring info from LTM to WM

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3
Q

What are 2 ways of getting info into LTM?

A
  1. maintenance rehearsal

2. elaborative rehearsal

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4
Q

What is maintenance rehearsal?

A
  • repetition of stimuli that maintains info

- does not transfer it to LTM

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5
Q

What is elaborative rehearsal?

A
  • using meanings + connections

- results in better memory than maintenance rehearsal

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6
Q

What is the levels of processing theory?

A

-memory depends on how info is encoded

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7
Q

Memory depends on the _____ of processing

A

depth

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8
Q

3 characteristics of shallow processing

A
  1. little attention to meaning
  2. focus on physical features
  3. poor memory
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9
Q

2 characteristics of deep processing

A
  1. close attention to meaning

2. better memory

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10
Q

What were the 3 types of questions in the Craik + Tulving experiment?

A
  1. physical features of word (shallow)
  2. rhyming
  3. fill-in-the-blanks (deep)
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11
Q

What is a problem with the levels of processing theory?

A
  • depth of processing has not been defined independently of memory performance
  • circular reasoning
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12
Q

What is visual imagery?

A
  • “images” in the head

- can connect words visually

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13
Q

What is the basis of paired-associate learning?

A
  • list of word pairs presented

- first word of each pair presented

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14
Q

What was the design and results of the paired-associate learning experiment?

A

Group A: repeat pairs
Group B: form mental picture of 2 items interacting
-Group B remembered twice as much as Group A

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15
Q

What is the self reference effect?

A

-memory is better if asked to link words to yourself

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16
Q

What is the generation effect?

A

-generating material yourself, rather than passively receiving it, enhances learning

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17
Q

What is a retrieval cue?

A

-a word/other stimulus that helps a person remember information

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18
Q

What did Bransford + Johnson find?

A
  • if organization helps memory

- preventing it should reduce the ability to remember

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19
Q

What was Bransford + Johnson’s experiment?

A
  • presented participants with difficult-to-comprehend info
  • Group 1 first saw picture (help explain info)
  • Group 2 saw pic after reading passage
  • Control: no pic
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20
Q

What was the result of Bransford + Johnson’s experiment?

A
  • group 1 (picture before) outperformed other groups

- mental framework of comprehension aided memory encoding + retrieval

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21
Q

What is the testing effect?

A

enhanced performance due to retrieval practice

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22
Q

-methods that increase richness of representation sin memory by providing _________ between material to be remembered and other material in memory aid encoding

A

connections

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23
Q

What must happen to material that has been encoded before it can be used?

A

-retrieved

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24
Q

What is retrieval?

A

-process of transferring info from LTM back into WM

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25
Most of our failures of memory are ______
failures to retrieve
26
What are retrieval cues?
stimuli that help us remember information stored in our memory
27
What are 2 types of recall procedures?
- free recall | - cued-recall
28
What is free recall?
-subjects simply asked to recall stimuli
29
What is cued-recall?
cue presented to aid recall of previously experienced stimuli (increased performance)
30
According to Mantyla (1986), retrieval cues are most effective when created by ______
person who uses them | EX: banana experiment
31
How can retrieval be increased?
-by matching conditions at retrieval to conditions that existed at encoding
32
What are 3 different ways to achieve matching between retrieval + encoding conditions?
1. encoding specificity 2. state-dependent learning 3. transfer-appropriate processing
33
What is encoding specificity?
matching context in which encoding and retrieval occur
34
What is state-dependent learning?
matching internal mood present during encoding and retrieval
35
What is is transfer-appropriate processing?
matching the task involved in encoding + retrieval
36
What was the "diving experiment?"
two learning conditions: 1. underwater 2. on land two testing conditions: 1. underwater 2. on land
37
What were the results of the diving experiment?
best recall when encoding + retrieval occurred at the same location
38
What was the noisy/quiet learning experiment?
two learning conditions: 1. headphones 2. quiet two testing conditions: 1. wearing headphones 2. quiet
39
What was the result of the noisy/quiet learning experiment?
best recall when test condition matched the study condition
40
What is state dependent learning?
when learning is associated with particular internal state
41
What is the happy/sad learning experiment?
two learning conditions: 1. pos thoughts + merry music 2. neg thoughts + sad music two testing conditions
42
What is transfer-appropriate processing?
-phenomenon whereby results of memory task will be better if type of processing used during encoding is same as type during retrieval
43
What were the two encoding conditions of Morris's transfer appropriate processing task?
1. meaning: answered based on meaning of word | 2. rhyming: answered based on sound of word
44
What does the levels of processing theory predict about the transfer appropriate processing task?
- predict that meaning group should've gotten higher recall | - thinking about meaning results in deeper relations
45
What were the results of Morris's transfer appropriate processing task?
- rhyming group performed better | - deeper processing at encoding does not always result in better retrieval
46
What is consolidation?
-process that transforms new memories from a fragile state to a more permanent state
47
What happens to synapses during recall?
-synapses cause NT to be released on to the next neuron
48
What are 2 types of consolidation?
1. synaptic consolidation | 2. systems consolidation
49
What is synaptic consolidation?
-occurs at synapses, happens rapidly
50
What is systems consolidation?
-involves gradual reorganization of circuits in brain
51
What did Hebb find about information storage at the synapse?
- learning + memory represented in brain by physiological changes at synapse - neural record of experience
52
How can repeated activity strengthen the synapse?
by causing - structural changes - greater transmitter release - increased firing
53
What is long term potentiation?
- enhanced firing of neurons after repeated stimulation | - structural changes + enhanced responding
54
What are neural records of experience?
-changes that occur in hundreds/thousands of synapses that are activated around the same time by a particular experience
55
What are the 5 steps of the standard model of consolidation?
1a. incoming info activates number of areas in cortex 1b. cortex communicates with hippocampus 1c. hippocampus coordinates communication between different regions in cortex 2. reactivation 3. form direct connections between various cortical areas
56
What is reactivation?
hippocampus replays neural activity associated with memory
57
Retrieval depends on the ______.
hippocampus
58
retrograde amnesia
loss of memory for events prior to trauma
59
graded amnesia
memory for recent events more fragile than for remote events
60
What does the standard model say about graded amnesia?
-gradual decrease corresponds to changes in connections between hippocampus and cortical areas
61
What is the hippocampus's overall role in the standard model?
- strongly active when memories first formed | - less involved during consolidation
62
What is the brain processes for remote memories?
-connection between cortical areas are sufficient (no necessary for hippocampus)
63
What is the multiple trace hypothesis?
-questions assumption that hippocampus is important only at beginning of consolidation
64
How has the hippocampus been show to be activated during retrieval of both recent/remote memories?
- subjects saw pics of themselves - some recently, some past - hippocampus active during both conditions
65
response of hippocampus can change ______
over time
66
How can the response of the hippocampus change over time?
- hippocampus remains involved in retrieval of episodic memories - not in semantic memory
67
When is reactivation particularly strong? Why?
- during sleep - elimination of environmental stimuli - consolidation enhanced during sleep
68
What was Wilehm's experiment showing that some memories more likely to be consolidated than others?
-2 groups learned task Group A: tested on this task Group B: tested on different task Both groups: sleep
69
What did Wilehm's experiment show?
-group A showed better memory for task
70
What happens in terms of consolidation during sleep?
-selectively consolidate memories for things that might be most useful to remember
71
Are memories permanent?
- we update memories | - constantly learning new things/modifying info stored
72
When a memory is retrieved it becomes ____
fragile
73
What happens when a memory is fragile
- needs to be consolidated again - reconsolidation - updates can take place during this process
74
What was Nader et. al's experiment?
-antibiotic that prevents changes at synapses responsible for formation of new memroy
75
What was Hupbach's experiment?
- 3 day experiment | - "reminder group" no "reminder"
76
What is a practical outcome of reconsolidation?
possible treatment of PTST
77
what are 2 methods of improving learning + memory?
- elaborate | - generate and test