Psychiatry - Theses

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    Personal attributes in inter-personal contexts: statistical models for individual characteristics and social relationships
    Robins, Garry Leigh ( 1998-07)
    The thesis develops models for social phenomena based on two primitive concepts: individual and relation. The models - based on the p* class of models for social networks - are designed to examine the inter-dependence of individual characteristics together with the social relations that exist among those individuals. The goal of constructing such models is to extend the capacity to develop rich descriptions of social processes. Relations among individuals are represented by a network or networks of interpersonal ties. The first part of the thesis describes models solely for such sets of relational ties. Techniques to represent data dependencies, approaches to model interpretation, and methods for valued attribute and relational data, are developed. (For complete abstract open document)
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    The effectiveness of three treatment regimens used in the management of neonatal abstinence syndrome
    Khoo, Khooi Tin ( 1995-09)
    This study proposed a multifactorial model of development to understand the development of infants during their first 12 months of life who had been born to chemically dependent women. The impact of maternal chemical dependency on pregnancy outcome, factors associated with severity of neonatal abstinence syndrome and effectiveness of three treatments used in the management of neonatal abstinence syndrome was studied in 271 mother-infant pairs, who were managed by the Chemical Dependency Unit, Royal Women’s Hospital, Melbourne between April 1991 and May 1994. The chemically dependent mothers and their infants were grouped on the basis of their primary drug of abuse: viz methadone, heroin, non-opioid and codeine groups. Fifty two infants born to drug-free mothers were recruited from a routine antenatal clinic of the same hospital to serve as a control group. The controls were matched for maternal age, marital status, race socioeconomic status, educational level, alcohol and tobacco consumption. Patterns of maternal drug use were determined by reports from methadone treatment programs, drug rehabilitation centres, medical records, personal interviews and urine toxicologic assays performed on mothers during pregnancy and on their infants during the first 48 hours of life. Urine was assayed for metabolites of methadone, amphetamines, barbiturates, cocaine, opiates, cannabis and benzodiazepines. There were 180 heroin-dependent, one morphine-dependent and one pethidine-dependent pregnant women enrolled in methadone maintenance programs. The methadone group consisted of these 182 methadone-maintained women and their offspring. Thirty five heroin-dependent women and their offspring formed the heroin group. The non-opioid group consisted of 46 chemically dependent women who used multiple drugs but not opioid drugs during their pregnancy and their offspring. There were eight mother-infant pairs in the codeine group. The mothers in this group primarily abused medication containing codeine in pregnancy. (For complete abstract open document)
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    Linguistic politeness in middle childhood: its social functions, and relationships to behaviour and development
    Pedlow, Robert ( 1997-07)
    This research compared Brown and Levinson’s “face saving” account of linguistic politeness with the everyday or social normative account in the context of children’s requesting skills. The research also explored the relationship between children’s politeness skills and their behavioural adjustment. The subjects comprised four groups of ten-and-a-half year old children: a comparison group without behaviour problems, a hostile-aggressive group; an anxious-fearful group; and a comorbid group. All the children were selected from the Australian Temperament Project subject population based on parents’ ratings of the children on the hostile-aggressive and anxious-fearful subscales of the Rutter Child Behaviour Questionnaire. Study 1 found that all the groups of children discriminated between others on the power and distance dimensions in ways consistent with social norms, e.g. adults are judged as more powerful than children. Study 1 also showed that the hostile-aggressive and comorbid groups were significantly less likely to discriminate between others on these dimensions compared to the comparison group. Study 2 showed that for all the children studied politeness as a normative way of speaking was marked by use of please whereas face saving politeness was marked by the use of question directives and hints compared to other request forms. Further, Study 2 showed that there were no differences between children with and without behaviour problems in their use of please to mark different ways of asking.