Lecture8-MemoryStructuresForMeaning.pptx

10 bransford franks study of the validity of

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Bransford & Franks Study of the Validity of Propositional Representations The researchers then looked at participants’ recognition memory for the following three kinds of sentences: Old : The ants in the kitchen ate the jelly. New : The ants ate the sweet jelly. . -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 Very Sure Old Very Sure New Don’t Know 11
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Number of Idea Units in Test Item Degree of Confidence that Test Item is New or Old Very Sure New Very Sure Old Guess New Sentences Old Sentences Noncase Sentences Participants were never shown sentences with four unit ideas originally! 4 3 2 1 12
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Results from confidence ratings in Bransford & Franks: The greater the number of unit ideas in the test item, the more likely participants were to rate a sentence as having been seen before (i.e., “old), for both old and new sentences. 13
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An Example of a Common Schema: Attributes That Typify Houses Houses are a type of building. Houses have rooms. Houses can be built of wood, brick, or stone. Houses serve as human dwellings. Houses tend to have rectilinear and triangular shapes. Houses are larger than 100 square feet and smaller than 10,000. 14
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Isa: building Parts: rooms Materials: wood, brick, stone Function: human dwelling Shape: rectilinear, triangular Size: 100-10,000 square feet A Possible Schema for “House,” With Representative Components default values for slots slots (variables) 15
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Lack of Sharp Boundaries in Schemas – Labov’s Experiment 16
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Results from Labov’s Classification Experiment Width/Height Ratio of Cup Percent Judging “Cup” 100 75 50 25 0 Cup Bowl 17
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  • Spring '14
  • V.Ferent
  • Health Psychology, Bransford, propositional representations, Franks Study

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