Different maps provide opportunities to emphasize different attributes about the systemNot all maps may be equally valid…What happens if you navigate without maps?oGives us a predictable patternCriteria for structural divisions:Comprehensiveness: divisions should cover everything or nearly soScientific foundation: each division should be scientifically defensible (cf. paranormalpart)Distinctiveness: each division should be unique, different from the restUtility: the divisions should help with some scientific projectBig Two: Eysenck’s 2 factor model (neuroticism/stability and extraversion/introversion)BigThree (Eysenck’s model added psychoticism/tender mindedness how easy it is to lose reality notextremes)Big Five ModelPurpose: to organize all traitsThe lexical hypothesis: all important traits are to be found in the languageFactor analysis trait words to discover important traitsFrom 30,000 to 100 wordsTo Five Factors- OCEANSupertraitsExampleExtroversionoSociable traitoSensation seekingoLiveliness traitThe Big FiveA wonderful model butoLimited to 30 or so traitsoTraits based on lay perception rather than professional expertiseoExcluded: temperament, verbal intelligence, internal-external locus of control,emotional intelligence, Machiavellianism, etc.The No Access UnconsciousDefinition: Mental activities to which consciousness is simply not connected…Consider the neurons departing from the retinaWe have no idea how our visual system works (unless we take a course in it)Its function is unconsciousi.e. firing of neurons in elementary processing of informationUnnoticed UnconsciousKen Bowers’ study on Unconscious influences