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General Knowledge Schemas and Scripts schema generalized

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Title: General Knowledge Schemas and Scripts schema generalized


1
General Knowledge
  • Chapter 8

2
Schemas and Scripts
  • schemageneralized knowledge about a situation,
    an event, or a person
  • schema theories especially helpful when
    psychologists try to explain how people process
    complex situations and events
  • scripts

3
Schemas and Scripts
  • Background on Schemas and Scripts
  • schema theories propose that people encode
    "generic" information about a situation, then use
    this information to understand and remember new
    examples of the schema
  • top-down and bottom-up processing
  • heuristicsgeneral rules that are typically
    accurate
  • active processing
  • schemas can lead to errors

4
Schemas and Scripts
  • Background on Schemas and Scripts
  • Piaget
  • Bartlett
  • social psychology
  • schema therapy
  • scriptsimple, well-structured sequence of events
  • scripts recalled more accurately if identified in
    advance

5
Schemas and Scripts
  • Schemas and Memory Selection
  • Enhanced Memory for Schema-Consistent Material
  • Brewer and Treyens (1981)
  • recall objects from waiting room
  • highly likely to recall objects consistent with
    "office schema"
  • "remembered" items that were not in the room, but
    were consistent with "office schema"
  • Neuschatz and coauthors (2002)
  • "lecture schema"

6
Schemas and Scripts
  • Schemas and Memory Selection
  • Enhanced Memory for Schema-Inconsistent Material
  • people are more likely to recall
    schema-inconsistent material when that material
    is vivid or surprising
  • Davidson (1994)read stories describing
    well-known schemas people especially likely to
    recall schema-inconsistent events that
    interrupted the normal, expected story

7
Schemas and Scripts
  • Schemas and Memory Selection
  • The Status of Schemas and Memory Selection
  • Rojahn and Pettigrew (1992)meta-analysis
    schema-inconsistent material was somewhat more
    memorable
  • However, when people "remember" events that never
    actually happened, they are likely to construct a
    schema-consistent event

8
Schemas and Scripts
  • Schemas and Boundary Extension
  • Boundary extensionour tendency to remember
    having viewed a greater portion of a scene than
    was actually shown
  • Intraub and colleaguessee photo then draw
    replica of photo participants consistently
    produced a sketch that extended the boundaries
    beyond the view presented in the original photo
  • activate a perceptual schema
  • relevance in eyewitness testimony situations

9
Schemas and Scripts
  • Schemas and Memory Abstraction
  • abstractiona memory process that stores the
    meaning of a message but not the exact words
  • verbatim memoryword-for-word recall

10
Schemas and Scripts
  • Schemas and Memory Abstraction
  • The Constructive Approach
  • Bransford and Franks (1971)
  • listen to sentences from several different
    stories
  • recognition test including new items
  • people convinced that they had seen these new
    items before (false alarm)
  • false alarms particularly likely for complex
    sentences consistent with the original schema
  • false alarms unlikely for sentences violating the
    meaning of the earlier sentences

11
Schemas and Scripts
  • Schemas and Memory Abstraction
  • The Constructive Approach
  • constructive model of memorypeople integrate
    information from individual sentences in order to
    construct larger ideas later cannot untangle the
    constructed information from the verbatim
    sentences

12
Schemas and Scripts
  • Schemas and Memory Abstraction
  • The Pragmatic Approach
  • pragmatic view of memorypeople pay attention to
    the aspect of a message that is most relevant to
    their current goals

13
Schemas and Scripts
  • Schemas and Memory Abstraction
  • The Pragmatic Approach
  • Murphy and Shapiro (1994)
  • read letters from "Samantha" to cousin or
    boyfriend
  • bland vs. sarcastic comments
  • recognition test on original, paraphrased, or
    irrelevant sentences

14
Pragmatic Approach
15
Schemas and Scripts
  • Schemas and Memory Abstraction
  • The Pragmatic Approach
  • Murphy and Shapiro (1994) (continued)
  • correct recognition was higher for sentences from
    the sarcastic condition than for sentences in the
    bland condition
  • more false alarms for paraphrases of bland
    sentences than sarcastic sentences
  • more accurate in their verbatim memory for the
    sarcastic version than for the bland version

16
Schemas and Scripts
  • Schemas and Memory Abstraction
  • The Current Status of Schemas and Memory
    Abstraction
  • two approaches (Constructive and Pragmatic) quite
    compatible
  • in many cases we integrate information into large
    schemas
  • in some cases we know that specific words matter
    and pay close attention to precise wording

17
Schemas and Scripts
  • In Depth Schemas and Inferences in Memory
  • inferenceslogical interpretations and
    conclusions that were not part of the original
    stimulus material

18
Schemas and Scripts
  • In Depth Schemas and Inferences in Memory
  • The Classic Research on Inferences
  • Bartlett (1932)memory as the complex interaction
    between the participants' prior knowledge and the
    material presented individual's unique interests
    and personal background often shape the contents
    of memory
  • "The War of the Ghosts" studyNative American
    story read and recalled by British students

19
Schemas and Scripts
  • In Depth Schemas and Inferences in Memory
  • The Classic Research on Inferences
  • "The War of the Ghosts" study (continued)
  • Participants tended
  • to omit material that didn't make sense from
    their own viewpoint
  • to shape the story into a more familiar framework
  • to add extra material to the story, making
    inferences so that the story made more sense from
    their perspective
  • to borrow more heavily from their previous
    knowledge as time passed before additional recall

20
Schemas and Scripts
  • In Depth Schemas and Inferences in Memory
  • Research on Inferences Based on Gender
    Stereotypes
  • gender stereotypeswidely shared sets of beliefs
    about the characteristics of females and males

21
Schemas and Scripts
  • In Depth Schemas and Inferences in Memory
  • Research on Inferences Based on Gender
    Stereotypes
  • Explicit Memory Task
  • Dunning and Sherman (1997)
  • read sentences followed by recognition-memory
    test
  • "new" sentences consistent or inconsistent with
    gender stereotypes
  • more likely to mistakenly "remember" a new
    sentence as "old" when it was consistent with a
    gender stereotype

22
Schemas and Scripts
  • In Depth Schemas and Inferences in Memory
  • Research on Inferences Based on Gender
    Stereotypes
  • Implicit Memory Tasks
  • 1. Using neuroscience techniques to assess gender
    stereotypes
  • Osterhout, Bersick and McLaughlin (1997)ERP
    technique
  • stereotype-consistent sentences vs.
    stereotype-inconsistent sentences
  • change in ERPs for stereotype-inconsistent words
    but not for stereotype-consistent words

23
Schemas and Scripts
  • In Depth Schemas and Inferences in Memory
  • Research on Inferences Based on Gender
    Stereotypes
  • Implicit Memory Tasks
  • 2. Using the Implicit Association Test to assess
    gender stereotypes
  • Nosek, Banaji, and Greenwald (2002)
  • Implicit Association Test (IAT)based on the
    principle that people can mentally pair related
    words together much more easily than they can
    pair unrelated words

24
Schemas and Scripts
  • In Depth Schemas and Inferences in Memory
  • Research on Inferences Based on Gender
    Stereotypes
  • Implicit Memory Tasks
  • 2. Using the Implicit Association Test to assess
    gender stereotypes (continued)
  • Stereotype-Consistent pairings (male/math vs.
    female/arts)
  • Stereotype-Inconsistent pairings (female/math vs.
    male/arts)

25
Schemas and Scripts
  • In Depth Schemas and Inferences in Memory
  • Research on Inferences Based on Gender
    Stereotypes
  • Implicit Memory Tasks
  • 2. Using the Implicit Association Test to assess
    gender stereotypes (continued)
  • participants responded significantly faster to
    the stereotype-consistent parings than to the
    stereotype-inconsistent pairings
  • technique can be used to examine attitudes, as
    well as stereotypes

26
Schemas and Scripts
  • In Depth Schemas and Inferences in Memory
  • Implications of Inferences for Persuasion
  • Advertising
  • Harris and colleagues (1989)
  • read stories containing advertising slogans
  • direct claim vs. implied claim
  • people who had seen the implied-claim version
    often believed they had seen the direct-claim
    version
  • Consumers be careful

27
Schemas and Scripts
  • In Depth Schemas and Inferences in Memory
  • Implications of Inferences for Persuasion
  • Politics
  • statements can be technically accurate but still
    misleading
  • listeners make incorrect inference
  • people make inferences only in certain
    situations often recall material in its original
    form

28
Schemas and Scripts
  • Schemas and Integration in Memory
  • Integration and Delayed Recall
  • background knowledge may not encourage
    schema-consistent integration if people are
    tested immediately after the material is learned
  • Harris and colleagues (1989)
  • story consistent with U.S. or traditional Mexican
    culture
  • no chaperone/chaperone
  • recall after 30 minutesno tendency for the
    Mexican-schema stores to shift in the direction
    consistent with U.S. schemas
  • after two daysthe students had shifted a
    significant number of story details

29
Schemas and Scripts
  • Schemas and Integration in Memory
  • Integration and Limited Memory Capacity
  • schemas are more likely to influence memory
    integration when memory capacity is strained
    during recall, but not on a relatively simple task

30
Schemas and Scripts
  • Conclusions About Schemas
  • 1. We often select material for memory that is
    inconsistent with our schemas.
  • 2. We may indeed remember that we saw only a
    portion of an object, rather than the complete
    object.
  • 3. We frequently recall the exact words of a
    passage as it was originally presented.

31
Schemas and Scripts
  • Conclusions About Schemas
  • 4. We often avoid making inappropriate
    inferences.
  • 5. We may keep the elements in memory isolated
    from each other, rather than integrated together.
  • 6. When we are recalling information from our
    real-life experiencesrather than information
    created by researcherswe may be more accurate.
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