視覺搜索非對稱現(xiàn)象的信息論解釋.pdf

1、浙江大學(xué)理學(xué)院碩士學(xué)位論文視覺搜索非對稱現(xiàn)象的信息論解釋姓名：陳瀟申請學(xué)位級別：碩士專業(yè)：基礎(chǔ)心理學(xué)指導(dǎo)教師：錢秀瑩20100510InformationalAspectsofVisualSearchAsymmetryAbstractSearchasymmetryisawellknownphenomenoninwhichsearchingforstimulusAamongabackgroundofdistractorsBismoreef

2、ficientthansearchingforBamongAAsymmetryparadigmhasbeenusedtounderstandtheattentionalmechanisminthehumanvisionsystemFeatureIntegrationTheoryindicatesthatitiseasiertodetectthepresenceofabasicfeature，whichhappensinthepreatt

3、entivestage，thanitistolocateitsabsenceExperimentsdrivenbythefamiliaritybasedperspectivesuggestthatthefamiliarityofthedistractorsdeterminessearchefficiencySOthatunfamiliardistractorsslowdownthesearchspeedAccordingtothepro

4、totype—deviationhypothesisthedeviatingstimulielicitsmoreactivitythandothestandardones，thussearchingforahi曲activitytargetamonglowactivitydistractorsisfasterthanTheaspectsofinformationtheoryintroduce“scarmigpredicting’proc

5、eduretointerpretthewaystimulusbeproccessedbyvisualsystem，whichprovidingtechniquesforquantifyingsituationswhichhavehithertobeendifficultorimpossibletoquantifyInthispaperIshalladopttheseinformationalaspectsofvisualpercepti

6、onteconsiderthephenomenonofvisualsearchasymmetryInExperiment1，ChinesecharacteranditstrasformwereusedastargetanddistractorstodemmonstratethatitiSthefacotorofamountofinformationratherthanfamiliarityorprototypedeviationelem

7、entdeterminessearchefficiencyInExperiment2stimuluswithsubstitutivefeaturesanddifferentamountofinformationareusedastargetanddistractorstoproveitistheamountofinformationnotthebasicfeaturesaffectssearchefficiencyExperiment3

8、gaveaprimarydiscussionontheinfluenceofuncertaintyonvisualsearchperformanceTheresultssuggestthat(1)itismoreefficienttosearchforatarget塒tllmoreinformationthan誦tllsmallinformation；(2)someaspectsofinformationtheoryCanbeusedt