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Lecture 3

Lecture 3 Part 2 For those of you who missed class, these notes have all the lecture slides and my own notes taken integrated together in one neat word document. Great for last minute studying!

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University of Toronto Mississauga
Ayesha Khan

PSY240Chapter 3 Causal FactorsViewpoints in Abnormal Psychology Part IIMethods for Studying Genetic InfluencesYou want to be able to formulate a relationship that heredity plays an important role in behaviourThree traditional methodsFamily history pedigree methodTwin methodStudies the genetic influence of abnormal behaviourMonozygotic twins identicalDizygotic not identical share 50Shared envt of the twins doesnt matter if they are genetically identicalAdoption methodStudies the influence of envt on individualSee if the biological mother has a disorderConcordance rate Higher ratehigh relationship Ex 100both twins will show the disorder More recent methodsLinkage AnalysisGenetic markers located on particular chromosomesEx See if the schizophrenics in a family share eye colour Maybe the genes for schizo is located near the genes for eye colourDone in familiesAssociation StudiesInclude individuals with and without the disorderFocus not only on relatives but the entire populrationTemperamentReactivity Characteristic ways of selfregulation5 dimensions fearfulness irritability frustration positive affect mood activity level attentional persistenceCan make guesses on what the child is going to be like as an adultAdult personality neuroticism negative emotionality extroversion positive emotionality constraint conscientiousness and agreeablenessOur early temperament is thought to be the basis from which our personality developsBehaviourally inhibitedFearful across many situationsType of child that is fearful of participationHeritable componentGoes on to exhibit anxiety disordersAnxiety disordersBehaviourally uninhibitedShowing little fear across many situationsDifficulty in learning moral standards More aggressive and delinquent behaviourConduct disorder antisocial personality disorderBrain Dysfunction and Neural PlasticitySubtle deficiencies of brain function are implicated in many mental disordersDont need significant damage to show changes in behaviour
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