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1、User-CenteredDesignandTestingBasicPsychologyNeededforInterfaceDesign（自學(xué)）SoftwareCollegeofNEUContents1HumanProcessorModel2Vision3Memory4Processors5Attention1HumanProcessorModelHumanProcessorModel2VisionTheHumanEyePhotoreceptorsRodsSensitivetolowlightSaturatedatmoderatelightinte
2、nsityDarkenedroomintosunlightEdgesoftheretinaDominateperipheralvisionOnlyonekind(peakresponseingreenwavelengths)PhotoreceptorsConesOperateinbrighterlightThreekinds:S(hort),M(edium),L(ong)Sconesareveryweak,centeredinbluewavelengthsMandLaremorepowerful,overlappingMcenteredingree
3、n,LinyellowfoveaSignalsfromPhotoreceptorsBrightnessM+L+rodsRed-greendifferenceL-MBlue-yellowdifferenceWeightedsumofS,M,LColorBlindnessRed-greencolorblindnessLconesBlue-yellowcolorblindnessMconespartialtritanopiaGuideline:don’tdependsolelyoncolordistinctionsUseredundantsignals:
4、brightness,location,shapeChromaticAberrationDifferentwavelengthsfocusdifferentlyHighlyseparatedwavelengths(red&blue)can’tbefocusedsimultaneouslyGuideline:don’tusered-on-bluetextItlooksfuzzyandhurtstoreadBlueDetailsAreHardtoResolveFoveahasnoSconesLensandaqueoushumorturnyellowwi
5、thageLensweakenswithageGuideline:don’tuseblueagainstdarkbackgroundswheresmalldetailsmatter(text!)FoveaHasNoRodsInscotopicconditions,peripheralvision(rod-rich)isbetterthanfovealvisionEasiertoseeadimstarifyoudon’tlookdirectlyatitScreenEye2degreesofvisualangleistheareaofthefovea’
6、shighacuity,whereapersoncanactuallyreadtextorseeadetailediconOntherestofthescreen,apersonisverysensitivetomovement,blinking,orotherchangesFoveaHasNoRodsADBCEIFHVisionPerceptionVisionPerceptionThequickbrownfoxjumpsoverthethelazydogReadingReadingspeedisameasureoflegibilityPropor
7、tionalspacingbetweenlines:9to12pointsLinelength:58to132mmReadingfromacomputerscreenisslowerthanabookCarefuldesignoftextualinterfacesDarkcharactersonalightscreen(negativecontrast)3MemoryHumanMemoryDisagreementSeparatesystemsordifferentfunctionsofthesamesystem.Short-termSensoryS
8、toreWorkingmemoryLong-termmemoryMemorypropertiesEncoding:type
