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Chapter 7

CH.7 txtbook notes.docx

5 Pages

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PSYC 213
Jelena Ristic

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ImageryPaivios DualCoding Theory Imagery is defined as the ease with which something elicits a mental imageDual Coding Theory The theory that verbal and nonverbal systems are alternative ways of representing eventsthe units that comprise the verbal system Logogens and ImagensLogogens The units that consists of the verbal system contains the info underlying our use of a word term by MortenImagens the units that make up the non verbal system both of these contain info that generates mental imagesImagens operate synchronously the parts that they contain are simultaneously available for inspection in other words you can just imagine something right away for ex when you imagine a group of people you can imagine their nose hair and all that and you can see them in wholecorrespond to natural objects holistic parts of objects and natural groupings of objectHowever Logogens it happens sequentially for ex when you listen to a sentence the words are not presented all at once but come one after the other Ex Dining table even if youre somewhere else you can imagine your home dining table this is part of imagens and when you explain it in words thats using logogens PaivioConcreteness the degree of whether the imagery is concrete ex like table enough to easily put it in words or not ex virtue idea theory Book def the degree to which a word refers to concrete objects persons places or things that can be heard felt smelled or tastedImagery and concreteness are usually found to be very highly correlated this has led Paivio to argue that imagery and concreteness measure two aspects of the same process because our experience of concrete events is necessarily saturated with images Love pain and etc are not concrete things they are referred to as emotionsResearch studies pg 198 16 pairs of words GO READIf the stimulus is concrete then it leads to much better recall of the response than if the stimulus is abstract Concrete words are available in both logogens and imagens whereas abstract words will only be coded verballyLeft and right hemispheres of the brain the theory that the left hemi controls speech and is better at processing verbal material than is the right hemi which is better at performing nonverbal tasks therefore in ex concrete words will elicit greater activity in the right hemi than will abstract words however Fiebach and Friederici found in their studies through fMRI that this is not necessarily trueLexical decision task participants are shown concrete words abstract words and pseudo words pseudo means fake which one or two letters have een randomly replaced they are to indicate whether each stimulus is a word or not this experiment allos one to compare the functional brain images that are elicited by abstract and concrete words even though tthe participant makes the same response to both abstract and concrete words the results showed that
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