Visual search - Psychology Wiki

Visual Search is an extension of attention and vigilance. Visual search involves and active scan of the environment for particular features. 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SignIn Advertisement in: Visualsearch,Visualcognition Visualsearch Viewsource History Talk(0) watch 01:52 Obi-WanTakestheHighGround!-TheLoop Doyoulikethisvideo? PlaySound ThemoredistractorstherearetheharderitistolocatetheletterBinthearray TheOhasadistinctivefeaturecomparedtotheXandappearsto"PopOut"ofthearray TheredXisalsoafeaturesingletonandattractsattention ConjunctiveSearch,findtheorangesquare VisualSearchisanextensionofattentionandvigilance.Visualsearchinvolvesandactivescanoftheenvironmentforparticularfeatures.Suchastryingtolocatecertainbrandofcerealatthegrocerystoreorapictureofafriendinagroupphotograph.TheprocessofVisualSearchismademoredifficultthroughtheoccurrenceofdistracters.Distractersarenontargetstimulithatdivertattentionawayfromthetargetstimulus.FalseAlarmsoccurwhenwemistakeadistracterforourtargetstimulus.Indailylifemarketersoftentakeadvantageofthisbycreatingproductpackagingthatcloselyresemblesamorewellknownbrand. Thenumberofdistractershasaneffectonhowdifficultortaxingthevisualsearchtaskis.Thesizeofagivenvisualarrayiscommonlyreferredtoisreferredtothedisplaysize.Thedisplaysizeeffectisthedegreewhichthesizeofthedisplaysizehindersthevisualsearchprocess.Dependingonthetypeofvisualsearchthedisplaysizecanvarygreatly. Contents 1Typesofsearch 1.1FeatureSearch 1.2ConjunctionSearch 2PopularSearchTheories 3Seealso 4Bibliography 4.1Keytexts–Books 4.2Additionalmaterial–Books 4.3Reviewsofthearea 4.4Keytexts–Papers 4.5Additionalmaterial–Papers 5Externallinks Typesofsearch FeatureSearch FeatureSearchistheprocessofsearchingfordistinctivefeature.Suchascolor,size,orientationorshape.Featuresearchescansometimesbeeasilyconductedifthetargetstimulushasadistinctivefeaturecomparedtoitsdistracters.Theobjectoftenappearsto“popout”ofthedisplay.Auniquefeaturewhichcausesastimuluswhichto“popout”isreferredtoasafeaturesingleton.Featuresingletonscanalsoattractattentioneveniftheyaredistracters. Mainarticle:Visualsearch-Featuresearch ConjunctionSearch ConjunctionSearchoccurswhenasinglefeaturesearchisinsufficient.Inaconjunctionsearcheachiteminthevisualarraymustbeexaminedtodetermineifitisthetargetstimulus.Thenumberofdistracterscangreatlyincreasethesearchtimeinaconjunctionsearch. Mainarticle:Visualsearch-Conjunctionsearch PopularSearchTheories FeatureIntegrationTheory SimilarityTheory GuidedSearchTheory MovementFilterTheory SignalDetectionTheory SEarchviaRecursiveRejection SelectiveAttentionForIdentificationModel Seealso Cognitivediscrimination Eyemovements Patterndiscrimination Signaldetection(perception) Visualdiscrimination Visualroutine Visualsearchparadigm Visualthresholds Bibliography Keytexts–Books Additionalmaterial–Books Reviewsofthearea Brodie,D.(1989)(Ed.),TheFirstInternationalConferenceonVisualSearch.London:TaylorFrancis. Brodie,D.(1992)(Ed.),TheSecondInternationalConferenceonVisualSearch.London:TaylorFrancis. Keytexts–Papers Duncan,J.&Humphreys,G.W.(1992)Beyondthesearchsurface:Visualsearchandattentionalengagement.JournalofExperimentalPsychology:HumanPerceptionandPerformance,18,578-588. Duncan,J.&Humphreys,G.W.(1989)Visualsearchandstimulussimilarity.PsychologicalReview,96,433-458. Gilchrist,I.,Humphreys,G.W.,Riddoch,M.J.&Neumann,H.(1997).Luminanceandedgeinformationingrouping:Astudyusingvisualsearch.JournalofExperimentalPsychology:HumanPerceptionandPerformance,23,464-480. Humphreys,G.W.,Freeman,T.&Muller,H.M.(1992)Lesioningaconnectionistmodelofvisualsearch:Selectiveeffectsondistractorgrouping.CanadianJournalofPsychology,46,417-460. Jacobsen,T.,Schroger,E.,Humphreys,G.W.&Roeber,U.(2001)Facilitationofvisualsearchatnewpositions:AbehavioralandERPstudyofnewobjectcapture.Neuroreport,12,4161-4164. Linnell,K.J.&Humphreys,G.W.(2002)VisualSearchWithinVersusAcrossDimensions:ACaseForWithin-DimensionGrouping.BritishJournalOfPsychology,93,115-136. Muller,H.&Humphreys,G.W.(1992)Aconnectionistmodelofvisualsearch.InD.Brodie(Ed.),TheSecondInternationalConferenceonVisualSearch.London:TaylorFrancis. Olivers,C.N.L.,Humphreys,G.W.,Heinke,D.&Cooper,A.C.G.(2002)PrioritizationInVisualSearch:VisualMarkingIsNotDependentOnAMnemonicSearch.Perception&Psychophysics64(4):540-560. Smith,K.J.&Humphreys,G.W.(1995).Mechanismsofvisualsearch:Animplementationofguidedsearch.InL.S.Smith&P.J.B.Hancock(Eds.),NeuralComputationandPsychology.Springer:London. TheeuwesJ(1992)Perceptualselectivityforcolorandform.Perception&Psychophysics1992,51(6),599-606.Fulltext Thornton,T.L.&Gilden,D.L.(2007).Parallelandserialprocessesinvisualsearch.PsychologicalReview,114,71-103.Fulltext TreismanA(1991)Visualperceptionoffeaturesandobjects.AnnualReport,15Sep.1990-14. Verghese,P(2001)VisualSearchandAttention:aSignalDetectionTheoryapproach.Neuron,30August2001,vol.31,no.4,pp.523-535(13). Watson,D.G.&Humphreys,G.W.(1999).Segmentationonthebasisoflinearandlocalrotationalmotion:Motiongroupinginvisualsearch.JournalofExperimentalPsychology:HumanPerceptionandPerformance,25,70-82 Wolfe,JM(1998)VisualSearch.In,H.Pashler(Ed.)Attention,London,UK:UniversityCollegeLondonPress,Fulltext Additionalmaterial–Papers GoogleScholar Externallinks ThispageusesCreativeCommonsLicensedcontentfromWikipedia(viewauthors). Categories: Visualsearch Visualcognition CommunitycontentisavailableunderCC-BY-SAunlessotherwisenoted. Advertisement FanFeed 1 Raceandintelligence(Averagegapsamongraces) 2 Impregnationfetish UniversalConquestWiki Let'sGoLuna!Wiki Club57Wiki FollowonIG TikTok JoinFanLab