www.soran.edu.iq general psychology firouz meroei milan memory forgetting 1

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www.soran.edu.iq general psychology Firouz meroei milan Memory Forgetting 1

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Page 1: Www.soran.edu.iq general psychology Firouz meroei milan Memory Forgetting 1

www.soran.edu.iq 1

general psychology

Firouz meroei milan

Memory

Forgetting

Page 2: Www.soran.edu.iq general psychology Firouz meroei milan Memory Forgetting 1

www.soran.edu.iq

Forgetting

Forgetting as encoding failure Information never enters the long-term

memory

Externalevents

Sensorymemory

Short-term

memory

Long-term

memory

Attention

Encoding

Encoding

Encodingfailure leadsto forgetting

Page 3: Www.soran.edu.iq general psychology Firouz meroei milan Memory Forgetting 1

www.soran.edu.iq

Forgetting

Forgetting as encoding failure

Which penny is the real thing?

Page 4: Www.soran.edu.iq general psychology Firouz meroei milan Memory Forgetting 1

www.soran.edu.iq

Forgetting

Ebbinghaus forgetting curve over 30 days-- initially rapid, then levels off with time

12345 10 15 20 25 30

10

20

30

40

50

60

0

Time in days since learning list

Percentage oflist retainedwhen relearning

Page 5: Www.soran.edu.iq general psychology Firouz meroei milan Memory Forgetting 1

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Forgetting

The forgetting curve for Spanish learned in school

Retentiondrops,

then levels off

1 3 5 9½ 14½ 25 35½ 49½Time in years after completion of Spanish course

100%

90

80

70

60

50

40

30

20

10

0

Percentage oforiginalvocabularyretained

Page 6: Www.soran.edu.iq general psychology Firouz meroei milan Memory Forgetting 1

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Retrieval

Forgetting can result from failure to retrieve information from long-term memory

Externalevents

Attention

Encoding

Encoding

Retrieval failureleads to forgetting

Retrieval

Sensorymemory

Short-termmemory

Long-termmemory

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Forgetting as Interference

Learning some items may disrupt retrieval of other information Proactive (forward acting) Interference

disruptive effect of prior learning on recall of new information

Retroactive (backwards acting) Interference disruptive effect of new learning on recall of old

information

Page 8: Www.soran.edu.iq general psychology Firouz meroei milan Memory Forgetting 1

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Forgetting as Interference

Page 9: Www.soran.edu.iq general psychology Firouz meroei milan Memory Forgetting 1

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Forgetting Retroactive Interference

Without interferingevents, recall isbetter

After sleep

After remaining awake

1 2 3 4 5 6 7 8Hours elapsed after learning syllables

90%

80

70

60

50

40

30

20

10

0

Percentageof syllables

recalled

Page 10: Www.soran.edu.iq general psychology Firouz meroei milan Memory Forgetting 1

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Forgetting

Forgetting can occur at any memory stage

As we process information, we filter, alter, or lose much of it

Page 11: Www.soran.edu.iq general psychology Firouz meroei milan Memory Forgetting 1

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Forgetting- Interference

Motivated Forgetting people unknowingly revise memories

Repression defense mechanism that banishes from

consciousness anxiety-arousing thoughts, feelings, and memories

Page 12: Www.soran.edu.iq general psychology Firouz meroei milan Memory Forgetting 1

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Memory Construction

We filter information and fill in missing pieces

Misinformation Effect incorporating misleading information into

one's memory of an event Source Amnesia

attributing to the wrong source an event that we experienced, heard about, read about, or imagined (misattribution)

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Memory Construction

Eyewitnesses reconstruct memories when questioned

Depiction of actual accident

Leading question:“About how fast were the carsgoing when they smashed intoeach other?”

Memoryconstruction

Page 14: Www.soran.edu.iq general psychology Firouz meroei milan Memory Forgetting 1

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Memory Construction

Memories of Abuse Repressed or Constructed?

Child sexual abuse does occur Some adults do actually forget such episodes

False Memory Syndrome condition in which a person’s identity and

relationships center around a false but strongly believed memory of traumatic experience

sometimes induced by well-meaning therapists

Page 15: Www.soran.edu.iq general psychology Firouz meroei milan Memory Forgetting 1

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Memory Construction

Most people can agree on the following: Injustice happens Incest happens Forgetting happens Recovered memories are commonplace Memories recovered under hypnosis or drugs are

especially unreliable Memories of things happening before age 3 are

unreliable Memories, whether false or real, are upsetting

Page 16: Www.soran.edu.iq general psychology Firouz meroei milan Memory Forgetting 1

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Improve Your Memory

Study repeatedly to boost recall Spend more time rehearsing or actively

thinking about the material Make material personally meaningful Use mnemonic devices

associate with peg words--something already stored

make up story chunk--acronyms

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Improve Your Memory

Activate retrieval cues--mentally recreate situation and mood

Recall events while they are fresh-- before you encounter misinformation

Minimize interference Test your own knowledge

rehearse determine what you do not yet know