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Thesis (MA (Psychology))--University of Stellenbosch, 2010. / ENGLISH ABSTRACT: The purpose of this study was to determine the prevalence of antenatal distress in Cape Town periurban settlements, and the social factors associated with it in this population. Participants were 756 pregnant women from Khayelitsha and Mfuleni, Cape Town. Each women was interviewed in her home language using a structured questionnaire which included the Edinburgh Postnatal Depression Scale (EPDS), measures for social support and alcohol use, and questions concerning socio-demographics, intimate partner violence, and the current pregnancy. A threshold score of 14 and above on the EPDS was used to determine antenatal distress. Data were analysed using descriptive statistics and bivariate analysis initially, followed by multivariate logistical regression. Results indicated a prevalence of 46% for antenatal distress, which is substantially greater than the prevalence found in high income countries. Women in their first trimester of pregnancy were more likely to experience antenatal distress than were women in their second and third trimesters. The strongest predictors of antenatal distress were poor partner support, intimate partner violence and having a household income below R2000 per month. The high prevalence found in this study has harmful implications for infant health in South Africa, and is reason to suggest that early screening and intervention is crucial. More research is needed to develop and evaluate the effectiveness and scalability of community-based interventions for maternal depression in South African peri-urban settlements, as well as to establish the specific infant outcomes of antenatal distress in this population. / AFRIKAANSE OPSOMMING: Hierdie studie het ten doel om die voorkoms van voorgeboorteangs in buitestedelike nedersettings in Kaapstad te bepaal, sowel as die maatskaplike faktore wat met voorgeboorteangs by dié populasie verband hou. Die studiedeelnemers was 756 swanger vroue van Khayelitsha en Mfuleni, Kaapstad. ʼn Gestruktureerde vraelys is gebruik om met elke vrou ʼn onderhoud in haar huistaal te voer. Die vraelys het die Edinburg-nageboortedepressieskaal (EPDS), maatstawwe vir maatskaplike steun en alkoholgebruik, en vrae oor sosiodemografie, bedmaatgeweld en die vrou se huidige swangerskap ingesluit. ʼn Drempeltelling van 14 en hoër op die EPDS is gebruik om voorgeboorteangs te bepaal. Die data is aanvanklik met behulp van beskrywende statistiek en tweeveranderlike analise ontleed, waarna dit aan meerveranderlike logistiese regressie onderwerp is. Studieresultate toon ʼn 46%-voorkoms van voorgeboorteangs, wat beduidend hoër is as dié in hoëinkomstelande. Vroue in hul eerste trimester van swangerskap blyk meer geneig te wees om voorgeboorteangs te ervaar as vroue in hul tweede en derde trimester. Die sterkste voorspellers van voorgeboorteangs is swak ondersteuning van lewensmaats, bedmaatgeweld en ʼn huishoudelike inkomste onder R2 000 per maand. Die hoë voorkomssyfer van voorgeboorteangs waarop die studie dui, het nadelige implikasies vir babagesondheid in Suid-Afrika, en maak vroeë toetsing en ingryping noodsaaklik. Verdere navorsing word vereis om die doeltreffendheid en skaleerbaarheid van gemeenskapsgegronde ingrypings vir moederdepressie in Suid-Afrikaanse buitestedelike nedersettings te ontwikkel en te beoordeel, sowel as om die bepaalde uitwerkings van voorgeboorteangs op pasgeborenes in dié populasie te bepaal

While research highlights a number of risk factors for suicide, not all individuals displaying these characteristics will go on to attempt suicide. Depressed mood is a proximal indicator of suicide, with deterioration in already depressed mood increasing the likelihood of a suicide attempt. The overall aim of this thesis was to empirically test the Cognitive Model of Suicide by Wenzel and Beck (2008). This model proposes that each of the three components, dispositional vulnerabilities, mood disturbance and suicide related cognitions, may influence each other to enhance the propensity for a suicidal crisis. The thesis starts by examining the relationship between two personality characteristics (neuroticism and trait aggression) and current depressed mood, and then focuses on the relationship between suicidality and current depressed mood. Although autobiographical memories have been implied as a possible risk factor for suicidality, meta-analytical studies have highlighted discrepancies between sampling techniques which may limit interpretablity. Therefore, the first series of studies aimed to establish a protocol for assessing autobiographical memories. The second and third series of studies aimed to investigate whether the relationships between current depressed mood and specific personality factors (neuroticism and trait aggression) were indirectly influenced by other known risk factors that may affect cognitive processing of information (rumination, overgenerality, impulsivity). Moreover, these studies aimed to determine whether the same cognitive processing factors effected current depressed mood in non-suicidal and suicide attempt groups. The final series of studies aimed to determine whether these risk factors (neuroticism, trait aggression, brooding, impulsivity, and overgenerality) mediated the relationship between suicidality and current depressed mood. Findings indicated that compared to the non-suicidal group, individuals in the suicide attempt group was more likely to be influenced by the effects of trait aggression and brooding, and that the combination of these factors were positively associated with current depressed mood. In contrast, neuroticism and impulsivity appeared to influence individuals who had experienced suicidal ideation more than individuals who report never having suicidal thoughts or attempting suicide. Compared to the non-suicidal group, however, neuroticism and impulsivity did not show a significant association for current depressed mood in the suicidal ideation group. Findings supported the Interacting Sub-Systems model and are discussed in relation to the Cognitive Model of Suicide model.

<p>Premenstrual dysphoria, so severe that it affects the lives of the women afflicted, is the condition studied in this thesis. Physiological and pharmacological mechanisms of pathogenetic relevance were investigated. </p><p>Women with premenstrual dysphoria showed a stronger and less dampened response of LH to an estradiol challenge than asymptomatic women, indicating an altered neuroendocrine regulation. In women with premenstrual dysphoria, the LH response was correlated to the severity of irritability and bloating, and the early FSH response was correlated to the severity of depressed mood. </p><p>The positron-emission study showed strong, consistent correlations between worsening of mood symptoms and a decrease in brain trapping of the immediate serotonin precursor, from the mid-follicular to the late luteal phase in women with premenstrual dysphoria. The strongest correlations were seen for the cardinal mood symptoms of premenstrual dysphoria, and for their opposites. Physical symptoms showed weaker or no correlations with the exception of nociceptive symptoms from erogenous body regions which showed positive correlations to serotonin precursor trapping in the right caudate nucleus. The findings are consistent with the serotonin hypothesis of premenstrual dysphoria, and might possibly explain the observed effects of serotonin-augmenting drugs in this condition.</p><p>The partial 5-HT_1A receptor agonist buspirone was superior to placebo in the treatment of premenstrual dysphoria. The weak SRI and 5-HT₂ receptor antagonist nefazodone was not superior to placebo. For women with premenstrual dysphoria in need of medication and who do not tolerate SRIs because of the sexual sideeffects, buspirone may be an alternative drug, since it had no adverse effects on sexual function. </p><p>The prevalence of polycystic ovaries and serum levels of androgens were not higher in women with premenstrual dysphoria than in their asymptomatic counterparts. The findings are not consistent with the hypothesis that irritability in women with premenstrual dysphoria is induced by elevated testosterone levels. </p><p>Thesis results, which are in line with the serotonin hypothesis of premenstrual dysphoria, may imply that increased brain sensitivity is one of the factors underlying severe premenstrual mood symptoms, thereby further supporting a common serotonergic dysregulation in this condition.</p>

Premenstrual dysphoria, so severe that it affects the lives of the women afflicted, is the condition studied in this thesis. Physiological and pharmacological mechanisms of pathogenetic relevance were investigated. Women with premenstrual dysphoria showed a stronger and less dampened response of LH to an estradiol challenge than asymptomatic women, indicating an altered neuroendocrine regulation. In women with premenstrual dysphoria, the LH response was correlated to the severity of irritability and bloating, and the early FSH response was correlated to the severity of depressed mood. The positron-emission study showed strong, consistent correlations between worsening of mood symptoms and a decrease in brain trapping of the immediate serotonin precursor, from the mid-follicular to the late luteal phase in women with premenstrual dysphoria. The strongest correlations were seen for the cardinal mood symptoms of premenstrual dysphoria, and for their opposites. Physical symptoms showed weaker or no correlations with the exception of nociceptive symptoms from erogenous body regions which showed positive correlations to serotonin precursor trapping in the right caudate nucleus. The findings are consistent with the serotonin hypothesis of premenstrual dysphoria, and might possibly explain the observed effects of serotonin-augmenting drugs in this condition. The partial 5-HT1A receptor agonist buspirone was superior to placebo in the treatment of premenstrual dysphoria. The weak SRI and 5-HT2 receptor antagonist nefazodone was not superior to placebo. For women with premenstrual dysphoria in need of medication and who do not tolerate SRIs because of the sexual sideeffects, buspirone may be an alternative drug, since it had no adverse effects on sexual function. The prevalence of polycystic ovaries and serum levels of androgens were not higher in women with premenstrual dysphoria than in their asymptomatic counterparts. The findings are not consistent with the hypothesis that irritability in women with premenstrual dysphoria is induced by elevated testosterone levels. Thesis results, which are in line with the serotonin hypothesis of premenstrual dysphoria, may imply that increased brain sensitivity is one of the factors underlying severe premenstrual mood symptoms, thereby further supporting a common serotonergic dysregulation in this condition.