Introduction to Cognitive Psychology - Department of Psychological ...

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Prof. Greg Francis 8/12/11Sensory memorySensory memory!! Temporal characteristics!! delayC R H JO K Q EN S D MPurdue University!! Temporal characteristics!! delayPurdue University!! Temporal characteristics!! delaySensory memoryResults!! Vary delay to watch decay from memory!! compare to CogLab dataNumber of letters correct432100 0.2 0.4 0.6 1Delay of tone (seconds)Purdue UniversityPurdue UniversityResults!! CogLab data (187 participants)Results!! We can test on any row and get essentially the sameresult!! so, the number of letters that actually persist and is available isfound by multiplying by the number of rowsPurdue UniversityNumber of letters available10864200 0.2 0.4 0.6 1Delay of tone (seconds)Purdue UniversityPSY 200: Intro. to Cognitive Psychology 3
Prof. Greg Francis 8/12/11!! Performance is betterthan the whole-reportIconic/sensory memoryprocedure because youcan focus attention onjust one row before thepercepts fade away!! Fading percepts are dueto visual persistence,which we talked aboutearlier!! We call the use of thisinformation iconicmemory!! Large capacityNumber of letters available10864200 0.2 0.4 0.6 1Delay of tone (seconds)!! The partial-reportexperiment can bemodified in severalInfant iconic memory!! Short duration Purdue UniversityPurdue Universityways!! Blaser and Kaldy(2010) modified it totest iconic memoryof infants!! 60, 6 month oldinfants!! Infants show apreference to look atthe changed object forsmall enough set sizes!! Infant iconic memory isInfant iconic memoryactually quite similar to adults!! Ask adults to report thelocation of the changed coloritem!! They do better thaninfants (who did notunderstand the ‘task’)!! Look for sharp drop inperformance as set sizeincreases!! Estimate items in memoryMasking!! Masking effects can influence iconic memory!!persistence-based memory is very brief, and iseasily destroyed by a mask!! Iconic memory is!!brief!!easily disturbed!! Adults = 5.75!! Infants = 5.0Purdue UniversityPurdue UniversityPartial report with maskingPartial report with masking!! Write down letters from the indicated row!! Write down letters from the indicated rowPurdue UniversityI J T RH V P LC G K MPurdue UniversityPSY 200: Intro. to Cognitive Psychology 4
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Introduction toCognitivePsychologyG
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Prof. Greg FrancisTopicsTopicsDiscu
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Prof. Greg FrancisImportance of att
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Prof. Greg Francis 1/2/12Brain part
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Prof. Greg Francis 1/2/12!! If “n
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Prof. Greg Francis 1/2/12Occipital
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Prof. Greg Francis 1/2/12Brain scan
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Prof. Greg Francis 1/2/12!! 3-D map
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Page 21 and 22: Prof. Greg Francis 1/2/12Problems /
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Greg Francis 1/2/13ConsciousnessPSY
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Greg Francis 1/2/13Turing testThe T
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Greg Francis 1/2/132. QualiaConclus
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Prof. Greg Francis 1/6/11Child lear
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Prof. Greg Francis 1/6/11Rules!! In
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Greg Francis 1/6/11Grammar!! You no
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Greg Francis 1/6/11Phrase tree!! It
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Greg Francis 1/6/11Language univers
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Professor Greg Francis 8/14/12Word
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Professor Greg Francis 1/2/13Eviden
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Professor Greg Francis 1/6/11Speech
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Professor Greg Francis 1/6/11Spelli
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Professor Greg Francis 8/15/12Babie
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Professor Greg Francis 8/17/11Langu
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Professor Greg Francis 8/17/11Evolu
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Greg Francis 1/7/11Framing effects!
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Greg Francis 1/7/11Notice!! Subject
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Greg Francis 1/7/11Problem solvingP
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Greg Francis 1/7/11Analogy!! The so
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Greg Francis 1/7/11Insight!! Warmth
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Greg Francis 8/15/12Useful backgrou
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