Pick Your Poison: Examining Adolescent Substance Use through Opportunity Theory

The present study examines substance use behaviors of middle and high school students, focusing on how varying influences of opportunity measures impact use of specific types of substances. The data used in the present study come from almost 4,000 students within 89 school contexts from students attending public school in a Southern state. Hierarchical logistic modeling is used to explore the influence of various opportunities at both the student and school levels on the use of different types of substances. Results indicate measures of opportunity at both the student and school levels were significant; however, measures at the individual level were consistently more influential.     

Enhancing Interpersonal Psychotherapy for Mothers and Expectant Mothers on Low Incomes: Adaptations and Additions

Intervening with depressed women during their childbearing years, especially with those on low incomes, is critically important. Not only do mothers and expectant mothers suffer unnecessarily, but their untreated depression has critical negative consequences for their families. Despite this, these women have proven especially difficult to engage in psychotherapy. In this paper we describe several adaptations and additions we have made to a brief form of Interpersonal Psychotherapy (IPT) to meet the needs of mothers and expectant mothers living on low incomes in the community who suffer from depression, but face significant practical, psychological, and cultural barriers to engaging in and staying in treatment. In addition, we present some preliminary data on the extent to which our enhanced, brief IPT approach promotes improvements in treatment engagement and retention relative to usual care for expectant mothers on low incomes.     

Counter-narratives in context: The role of the organisation and broader culture in psychic splitting among South African survivors of intimate partner violence

Chronic trauma, shame and psychopathology, as well as the association between them, are acutely understudied, both in South African and internationally. The focus of this article is on chronic trauma of a particular kind, intimate partner violence (IPV) and the development of a specific form or shame-related psychopathology, the splitting of self and how this splitting may be further facilitated or exacerbated by the contexts in which people live. The (counter) narratives of three women are presented. These (counter) narratives demonstrate the presence of both a concealed and shameful authentic self, and the socially conforming projected false self, two polarised parts of the psyche. It is argued that the organisational context, a shelter for survivors of IPV, which has a strong ethos centred around advocacy and human rights and which promotes a strong message of personal empowerment and agency, may unintentionally exacerbate the psychic split in women who have been subjugated at a broader (predominantly patriarchal) cultural level their whole lives. Participants’ resistance narratives were often characterised by inconsistencies and contradictions which oscillated between supporting mainstream cultural narratives and organisationally driven, active resistance against the cultural context from which they came. However, resistance narratives often felt thinly veiled and inauthentic, which is one of the problems with interventions in resource constrained settings which are necessarily time-limited. To fully and completely counter the cultural message that has been the focus of participants’ lifelong gendered socialisation, long-term and in depth interventions at organisational level are needed. These ideas are not only relevant to the South African setting, but have wider application internationally.     

Child,Adolescent and Adult Psychiatric Disorders in Africa: Implications for Psychological Interventions

The authors start by critically discussing some core features of Western psychiatric diagnosis, and present the cultural formulation as one approach to ensure that the cultural aspects of the diagnostic process are addressed, followed by a summary of what is known about the causes of psychiatric disorder. Five arguments are presented that provide support for the importance of psychiatric disorders in Africa: prevalence rates are high; psychiatric disorder is associated with a considerable burden from disability; in most cases, adults with psychiatric disorders experienced the onset of their disorder in childhood or youth; psychiatric disorders are strongly associated with medical conditions; and effective interventions exist for the majority of people suffering from psychiatric disorders. Against this background, current mental health services in Africa are reviewed. Finally, some suggestions are provided for how those providing psychological interventions can contribute to addressing the challenges posed by psychiatric disorders in Africa.     

Multiresolution Analysis of Event-Related Potentials by Wavelet Decomposition

Wavelet analysis is presented as a new tool for analyzing event-related potentials (ERPs). The wavelet transform expands ERPs into a time-scale representation, which allows the analyst to zoom in on the small scale, fine structure details of an ERP or zoom out to examine the large scale, global waveshape. The timescale representation is closely related to the more familiar time-frequency representation used in spectrograms of time-varying signals. However, time-scale representations have special properties that make them attractive for many ERP applications. In particular, time-scale representations permit theoretically unlimited time resolution for the detection of short-lived peaks and permit a flexible choice of wavelet basis functions for analyzing different types of ERPs. Generally, time-scale representations offer a formal basis for designing new, specialized filters for various ERP applications. Among recently explored applications of wavelet analysis to ERPs are (a) the precise identification of the time of occurrence of overlapping peaks in the auditory brainstem evoked response; (b) the extraction of single-trial ERPs from background EEG noise; (c) the decomposition of averaged ERP waveforms into orthogonal detail functions that isolate the waveforms experimental behavior in distinct, orthogonal frequency bands; and (d) the use of wavelet transform coefficients to concisely extract important information from ERPs that predicts human signal detection performance. In this tutorial we present an intuitive introduction to wavelets and the wavelet transform, concentrating on the multiresolution approach to wavelet analysis of ERP data. We then illustrate this approach with real data. Finally,we offer some speculations on future applications of wavelet analysis to ERP data.     

Quarterly commentary

The Psychological Record -