Memory Flashcards

1
Q

3 Stages of Memory

A

Sensory
Short Term
Long Term

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2
Q

Sensory Memory

A

Involves transforming sensory input into data that can be understood & stored as a visual or auditory image (must transfer to short term memory to do so)

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3
Q

Iconic Memory lasts ___

A

1/2 second

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4
Q

Echoic Memory lasts ____

A

up to 4 seconds

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5
Q

Selective Attention

A

Only sensory input that is attended to can pass into short term memory, can be deliberate or automatic

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6
Q

Short Term Memory

A

Processes ongoing info to store memories for short duration (up to 30 sec)

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7
Q

2 components of Short Term Memory

A

Primary Memory

Working Memory

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8
Q

Primary Memory

A

Passive “holding tank” for info requiring no manipulation

i.e. digits in sequence

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9
Q

Working Memory

A

Holds & manipulates info

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10
Q

How is short term memory enhanced or transferred to long term memory?

A

Rehearsal, or deliberate repetition

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11
Q

Capacity of Short Term Memory

A

Seven items, plus or minus 2

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12
Q

Chunking

A

Involves transforming separate items into meaningful units that are more easily recalled

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13
Q

Dual Coding System for STM

A

Verbal & Visual Channels

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14
Q

Some theorists divide Long Term Memory into _____ and ____

A
Recent Memory (2 wks)
Remote (2 yrs or more)
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15
Q

Some research supports importance of ___ ___ for long term memory

A

REM sleep, where LTM is reviewed, improved, systematically catalogued

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16
Q

Concepts assoc w/LTM

A
Retrieval
Priming
Zeigarnik Effect
Redintigration
Landmark Events
Flashbult Memories
Prospective Memory
Effects of Hypnosis
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17
Q

Retrieval

A

Accessing info from LTM into STM for analysis & awareness
Often a cue stimulates the retrieval process
Recognition easier than recall b/c recog acts like a table of contents

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18
Q

Priming

A

Exposure to a stimulus, which makes it easier for person to recog the stim at a later time

19
Q

Zeigarnik Effect

A

When you come to an impasse with a task involving recall, brain continues to work unconsciously until the solution is obtained.

20
Q

Redintigration

A

When something rapidly unlocks a chain of memories, like a smell from childhood

21
Q

Landmark Events

A

Helps w/retrieval by anchoring to important events in life. We can use those events to locate other events occurring around the same time
ex: using wedding to remember when we got hank

22
Q

Flashbulb Memories

A

Vivid memories of events, typically traumatic. can remember what happened before & after in addition to the event itself

23
Q

Prospective Memory

A

Remembering that you planned to do something at a particular time

24
Q

Effects of Hypnosis

A

Tends to elicit more false memories than real ones, more likely to use imagination to fill in gaps in memories, then feel very confident of accuracy; also vulnerable to leading questions by the hypnotizer

25
Accuracy of LTM
Process of transfer to LTM & retrieval often distorts original info Likely b/c LTM relies on semantic meaning, which is subjective Also make inferences about info and these (which may not be accurate) and these are stored in LTM
26
Sleeper Effect
Source of Info forgotten over time, while message itself is retained
27
Areas where accuracy of LTM significantly questioned
Eyewitness reports | Repressed memories
28
Popular classification schema for memory
Declarative/explicit | Procedural/implicit
29
Declarative Memory (Explicit)
Conscious recollection of info or experiences
30
Divisions of Declarative Memory
Semantic-meaning of words, facts, abstract info or images | Episodic-autobiographical events, retrieval requires reconstructing the event in your mind
31
Procedural Memory (Implicit)
Recollection of skills, physical operations, procedures that are automatic & without conscious awareness
32
William Scoville
Discovered critical role of hippocampus in long term memory through removal of pt's temporal lobes to treat seizures, resulting in anterograde amnesia
33
Brain areas involved in memory
``` Frontal Lobes (esp STM) Temporal cortex Hippocampus Thalamus Mamillary bodies Basal Forebrain ```
34
Neurotransmitter implicated in memory | *Need this to ACE the test
Acetylcholine (probs w/prod of ACh in Alzheimers
35
Long term potentiation
Repeated stim of a synapse thru rehearsal leaves to chem & structural changes to the receiving neuron, increases sensitivity of neuron to stimulation
36
kinases
Enzymes involved in LTP (long term potentiation), changes dendrites
37
Research on forgetting
Ebbinghaus | Discovered forget most fully memorized nonsense info within first hour (only applies to info that is meaningless to us)
38
Serial Position Effect
Immediate recall- Remember words at beginning & end of list better than those in middle Delayed recall- remember words at beginning best
39
Types of Amnesia
Anterograde-impaired ability to create new memories Retrograde-Loss of memories before injury or disease Posttraumatic-loss of memory for short time after a trauma Paramnesia-Distortion of memory, confabulation
40
Factors involved in forgetting
Retrieval Failure Interference (Retroactive or Proactive)-other learned material interferes Decay-difficult to separate from interference Mood Congruent Memory State Dependent Memory Motivated Forgetting-proposed by Freud-unconscious blocking of painful memory
41
Strategies to Enhance Memory
``` Chunking Imagery & Association Recreation of context Study strategies (distributed practice, rehearsal at reg spaced intervals) Mnemonics ```
42
types of Mnemonics
Method of Loci-placing items to be remembered in different spots in an imaginary room Peg Word system-Memorize set of 10 visual images that are pegs on which to hang ideas Word Associations Substitute Word Technique
43
Amnesia vs Inhibition
Amnesia-inability to recall | Inhibition- interference w/learning
44
Interference theory of memory
proposes that we remember best when we minimize interference immediately after we learn something For example- go to sleep directly after studying