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Cognitive Psych > Chapter 5 - Memory > Flashcards

Chapter 5 - Memory Flashcards

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1
Q

Memory

A
  • process involved in retaining, retrieving, and using information after the original information is no longer present
  • past affecting the present and possibly the future
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2
Q

Sensory memory

A
  • retention, for brief periods of time, of the effects of sensory stimulation
  • perception lasts for a fraction of a second
  • holds incoming info
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3
Q

Short-term/working memory

A
  • 10 to 15 seconds (without repetition)
  • holds 5 to 7 items
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4
Q

Long-term memory

A
  • stores info for long periods of time
  • minutes to lifetime
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5
Q

LTM

Episodic memories

A
  • memory of experiences from the past
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6
Q

LTM

Procedural memory

A
  • involves muscle coordination
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7
Q

LTM

Semantic memory

A
  • memories of facts
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8
Q

Modal Model of Memory

A
  • suggests memory is processed through stages
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9
Q

Modal model of memory

Structural features

A
  • types of memory indicated by boxes in models of memory
  • sensory, short-term, and long-term
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10
Q

Modal model of memory

Control processes

A
  • dynamic (constant change, progress) processes associated with structural features
  • strategies and mechanisms that someone uses to intentionally manage the flow of info between different memory stores (structural features)
  • can be controlled by the person and may differ from task to task (can be adapted as needed)
  • ex. rehersal, giving meaning to things to remember them better, selective attention
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11
Q

Modal model of memory

Rehearsal

(control process)

A
  • repeating a stimulus
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12
Q

What are 3 examples of control processes?

A
  • selective attention
  • rehearsal
  • giving meaning to things in order to remember them better
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13
Q

Encoding

A
  • storing something in LTM
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14
Q

Retrieval

A
  • remembering info from LTM
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15
Q

sensory memory

Persistence of vision

A
  • continued perception of a visual stimulus even after it is no longer present
  • fraction of a second
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16
Q

sensory memory

Whole report method

A
  • report all letters seen
  • by the time ps reported 4 or 5 letters, they couldn’t remember the rest
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17
Q

sensory memory

Partial report method

A
  • report row indicated by tone
  • had to remember traces
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18
Q

sensory memory

Delayed partial report method

A
  • cue presented after a short delay
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19
Q

sensory memory

Decay

A
  • incoming visual sensory memory decays after less than a second
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20
Q

sensory memory

Iconic memory/visual icon

A
  • brief sensory memory for visual stimuli that lasts for a fraction of a second after a stimulus is extinguished
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21
Q

sensory memory

Echoic memory

A
  • persistence of sound
  • lasts for a few seconds
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22
Q

Recall memory

A
  • reporting what you remember
23
Q

How long does STM last?

A

15-20 seconds or less

24
Q

STM

Digit span

A
  • measure of the capacity of STM
  • number of digits a person can remember
25
Q

STM

What’s the average capacity of digit span?

A

5-9 numbers

26
Q

STM

Change detection

A
  • measure of STM capacity
  • detecting differences between pictures or displays that are presented one after another
27
Q

STM

Chunking

A
  • arranging things (like words) into chunks (like sentences) so we can remember them better
  • giving it meaning
28
Q

Chunk

A
  • collection of elements that are strongly associated with one another and weakly associated with elements in other chunks
29
Q

Working memory

A
  • limited-capacity system for temporary storage and manipulation of information for complex tasks (ex. comprehension, learning, reasoning)
  • temporary storage and processing
30
Q

What is the difference between short term memory and working memory?

A
  • working memory holds short term items but uses them to process other information
  • includes both storage and active processing for problem solving (whereas STM only includes storage)

STM = storage (without much meaning)
WM = storage and active problem solving

31
Q

What 3 components of working memory did Baddeley determine function separately (because working memory is dynamic)

A
  • phonoological loop
  • visuospatial sketchpad
  • central executive
32
Q

WM

What are the two components of the phonological loop?

A
  • phonological store = holds info for a few seconds
  • articulatory rehearsal process = rehearsal that keeps items in the phonological store from decaying
33
Q

WM

Phonological loop

A
  • holds verbal and auditory information
  • ex. paying attention when someone’s talking
34
Q

WM

Visuospatial sketchpad

A
  • holds visual and spatial information
  • ex. pictures in your mind, directions in your mind
35
Q

WM

Central executive

A
  • “traffic cop” of WM
  • coordinates verbal and visual information and combines it with LTM
  • attention controller
  • transferring info to LTM
  • reasoning, language comprehension
  • control and decisions
36
Q

Phonological loop

Phonological similarity effect

A
  • confusion of letters or words that sound similar
37
Q

Phonological loop

Word length effect

A
  • memory for lists of words is better for short words than for long words
38
Q

Phonological loop

Articulatory suppression

A
  • memory is reduced when speaking interferes with rehearsal
  • ex. someone saying random numbers (irrelevant sound) while you’re trying to remember a phone number
  • also eliminates the word length effect (no matter how long the words are, if someone is speaking over you while you’re reading the words, you likely won’t be able to remember them)
39
Q

Visuospatial sketchpad

Visual imagery

A
  • creation of visual images in the mind in the absence of a physical visual stimulus
40
Q

Visuospatial sketchpad

Mental rotation

A
  • solving visual problems by rotating an image in the mind
41
Q

WM

Preservation

A
  • patients with brain damage will repeatedly perform the same action or thought even if it isn’t achieving the desired goal
  • represents a breakdown in the central executive’s ability to control attention
42
Q

Episodic buffer

A
  • “backup” storage
  • communicates with LTM and the components of WM
  • holds info longer and has greater capacity than the phonological loop and visuospatial sketchpad
43
Q

Why does damage to the frontal lobe cause problems with working memory?

A
  • can cause problems with controlling attention which is an important function of the central executive
44
Q

Delayed-response task

A
  • required to hold working memory during a delayed period
45
Q

How is the prefrontal cortex involved in working memory?

A
  • holds information for short periods of time
46
Q

Neural dynamics of working memory

how does neural firing explain memory delay?

A
  • things are remembered after a brief delay due to continuous neural firing that transmits information in the nervous system
47
Q

Memory delay

A
  • memory involves a delay
  • something happens, brief delay, recall (if memory was successful)
48
Q

Neural dynamics of working memory

Activity-silent working memory

A
  • idea that neural firing isn’t continuous
  • short-term changes in neural network connectivity (brief change in connections causes memory)
  • hypothesized as a mechanism for holding information in WM
49
Q

Is working memory the same in different people?

A
  • no, there are individual differences in the capacity of people’s working memory
  • these differences influence cognitive functioning and behaviour
50
Q

Reading span

A
  • number of sentences someone can ready and correctly remember all of the last words
51
Q

reading span test

A
  • used to investigate the differences in working memory between people
  • asked to read a series of sentences and report the last word of each sentence
52
Q

Articulatory rehearsal process

A
  • procedure involved in working memory that keeps items in the phonological store from decaying
53
Q

Phonology

A
  • the study of the patterns of sounds in a language and across languages

Cognitive Psych (8 decks)

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