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Chapter 10

PSY270 Chapter 10.doc

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Christine Burton

Chapter 10 Visual ImageryImagery in the History of PsychologyVisual imagery seeing in the absence of a visual stimulusMental imagery ability to recreate the sensory world in the absence of physical stimuli also occurs in senses other than visionEarly Ideas about ImageryWundt proposed that images were one of the three basic elements of consciousness sensations feelingsStudying images was a way of studying thinkingImageless thought debate thought is impossible without an imageoBehaviourists branded study of imageunproductivevisual images are invisible to everyone except person experiencing themImagery and the Cognitive RevolutionPaivioeasier to remember concrete nouns truck tree that can be imaged than it is to remember abstract nouns truth justiceoUsed pairedassociate learningMethod PairedAssociate LearningParticipants presented with pairs of words eg boathat carhouse during a study periodThen presented during test period first word from each pairTaskrecall word that was paired with it during the study periodConceptual peg hypothesis concrete nouns create images that other words can hang ontooEasier for concrete nouns than abstract nounsShepard and metzlermental chronometrydetermining the amount of time needed to carry out various cognitive tasksoMental rotation experimentwere the two pictures the same object or differentoSuggests that imagery and perception may share the same mechanismsImagery and Perception Do they share the same mechanismMental and perceptual images both involve spatial representation of the stimulusoSpatial experience for both imagery and perception matches the layout of the actual stimulusMental scanning participants create mental images and then scan them in their mindsKosslyns Mental Scanning ExperimentsAsked participants to memorise a picture of an object such as a boat and to focus on one part of the boat such as an anchoroThen looked for another part of the boat such as the motor
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