chapter 7 memory Flashcards

(38 cards)

1
Q

what is amnesia?

A

the loss of memory or memory abilities caused by brain damage or disease

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2
Q

what is retrograde amnesia?

A

loss of memory for events before brain injury
- but there is something called gradient across time, this means that. memories that are more distant in time from brain damage are less impaired by the amnesia

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3
Q

what. is anterograde amnesia?

A

disruption of memory for events occurring after brain injury
- affects it right away once you read something you forget

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4
Q

what is sensory memory?

A

lasts for a very short time less than a second

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5
Q

what is short term memory?

A

retains information temporarily for about a minute

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6
Q

what is long term memroy?

A

stores information for a lifetime

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7
Q

what is explicit memory?

A

memories you are aware of, which can be declared or explained

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8
Q

what is episodic memory?

A

memory of specific events and experiences

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9
Q

what is semantic memory?

A

memory of facts and concepts

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10
Q

what is implicit memory?

A

unconscious

  • memories that influence behaviour without conscious awareness
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11
Q

what. is procedural memory?

A

skills and tasks like riding a bike

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12
Q

During anterograde amnesia what memory is impaired?

A

semantic memory

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13
Q

what is perceptual priming? also called repetition priming this is a form of implicit memory

A

exposure to a stimulus will facilitate a future response (more quickly or more accurately) to the same stimulus

example: if you see the word “apple” you are more likely to recognize it faster when you see it again, even if it shown very quick or in fragments (eg A_ _ L E)

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14
Q

what is conceptual priming or also known as semantic priming? this is a form of implicit memory

A

exposure to a stimulus will facilitate a future response to a new stimulus closely related to it

example if you are shown the word DOCTOR you will respond to the word NURSE quickly as they are semantically related

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15
Q

What did the Warrington and Wieskrantz study reveal about explicit memory in amnesic patients?

A

explicit memory: amnesic patients performed worse than healthy individuals on free recall and recognition tasks

implicit memory: amnesic patients performed equally well as healthy individuals on the word fragment completion task, showing they retained implicit memory

conclusion: amnesic patients lacked explicit memory for the words but retained implicit memory of them

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16
Q

why do people forget?

A

interference

  • people forget information because of competition from other material like meeting multiple people at a party
17
Q

what is proactive interference?

A

its when you try to remember something from time 2 but end up recalling time 1 instead

18
Q

what is retroactive interference?

A

when you attempt to recall information from time 1 but recall time 2 instead

19
Q

what is the serial position effect?

A

high recall: The recency effect is when you can remember the last few words of a list because it is still is short-term memory

intermediate recall: primacy effect, is remembering items at the beginning of the list because you see them more, and they are in long-term memory

low recall: middle items

  • words in the middle of the list are more complex to remember because they are disrupted by proactive interference and retroactive interference
20
Q

how do we remember?

A

using cues to aid retrieval
context-dependent memory (encoding specificity)
reinstating the context of an event

(Everyday example:
* You visit a place in which you grew up (or a place where you used to live) and
recall many events that you have never thought of in years.
* A case of recovered memory
* JR reported that following viewing a movie involving sexual abuse, he
suddenly remembered incidents of being molested by a priest on camping
trips when he was an adolescent.)

21
Q

what is the misinformation effect?

A

The misinformation effect occurs when a person’s memory of an event is altered by misleading information presented after the event has occurred.
This can lead individuals to recall details incorrectly or remember events that never actually happened.

22
Q

what is sensory memroy?

A

it is the very brief and initial stage of memory that holds information from the environment through the five senses, for a very short time, typically less than a second.
- usually 0.3 for visual information
- 2 sec for auditory info

  • has a large capacity but information is lost unless you focus on it
23
Q

What is short term memory?

A

stores sounds, images and words
- stores information for about 20-30 seconds
- average people can hold 7 items in short term memory
- information is kept here through rehearsal or repeating in head if not it is forgotten

24
Q

what is another name for sensory memory?

A
  • iconic memory
  • afterimage
25
what is another name for short-term memory?
working memory
26
what is long term memory?
stores information for an infinite period with unlimited capacity - information is transferred here from working memory through encoding and storage - you can retrieve information from long term memory but some may be forgotten due to decay or retrieval failure
27
what is free recall?
subjects are free to recall a list of items in any order - subjects have good memory for both the beginning and the end of the list this is called serial position effect
28
what is serial recall?
subjects are to recall the list of items in their original order of presentation - subjects have a good memory for the beginning of the list, performance is poorer toward the end of the list
29
30
30
what is a recall test?
requires participants to reproduce information on their own without any cues
31
what is a recognition test?
requires participants to select previously learned information from an array of options
32
what is shallow processing?
structural encoding focuses on appearance or structure example: " is the word written in capital letters?"
33
what is intermediate processing?
phonemic encoding focuses on sounds example " does the word rhyme with weight?"
34
what is deep processing
semantic encoding focuses on meaning example " would the word fit in the sentence: he met ____ on the street?"
35
what is chunking
Chunking is a memory strategy where you group information into smaller, meaningful units to make it easier to remember. It helps overcome the limited capacity of short-term memory
36
what is memory consolidation?
is the process where information moves from short-term memory to long term memory by strengthening connections in the brain 0 information remains unchanged in storage
37
what is a schema?
is a organized cluster about an object, event or siutation from past experiences example office - inlcudes comuter, books, pens