Attention Deficit/Hyperactivity Disorder (ADHD) is one of the most commonly diagnosed disorders of childhood. This study was designed to evaluate the effectiveness of combined parent training and structured group therapy with children diagnosed with ADHD. The study sought to evaluate the amount of parent training needed to lead to significant changes in children and parents. Families were assigned to a wait-list control condition or to one of two parent treatment conditions: a complete parent group or a handout-only group. Children participated in a seven session social skills and behavior management group. The treatments were designed to concurrently enhance skills of both parents and children. Dependent measures assessed change in the following three areas: (1) child symptomatic behaviors, (2) parental attitudes, and (3) parental behaviors. Results showed that the full parent group led to greater levels of improvement in both child behavior problems and parental feelings of stress and control. The full parent group also led to greater consistency in parenting methods. Findings in the study are discussed in the context of the parent-child coercive cycle model.

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Thesis (PhD) - Faculty of Life and Social Sciences, Swinburne University of Technology, 2009. / Submitted in fulfillment of the requirements for the degree of Doctor of Philosophy, Faculty of Life and Social Sciences, Swinburne University of Technology - 2009. Typescript. Includes bibliographical references (p. 264-308)

Mindfulness-based meditation practices involve various attentional skills including the ability to sustain and focus ones attention. During a simple mindfulness based breath awareness meditation, sustained attention is required to maintain focus on the breath while meta-cognitive awareness and executive control are required to detect and correct mind wandering. The purpose of this thesis was to investigate whether a simple, mindfulness based breath awareness meditation, administered over a short period to meditation naïve individuals could modulate core attentional functions and associated task related neural activity. Two longitudinal randomised control studies were conducted. The aim of the first study was to establish if said modulations were possible in a sample of healthy adults, meeting a current research need for longitudinal evidence in this field and providing important information regarding a potential mechanism for the salutary effects widely observed from the use of mindfulness based interventions. It was found that short term engagement with a mindfulness based breath awareness meditation can modulate core attentional functions and task related neural activity, with specific modulations found in electrophysiological markers of sustained attention to the goal/task at hand and perceptual stimulus discrimination. In line with current theoretical models it is argued that modulations to such core attentional processes following short term training may provide a platform upon which mindfulness related salutary effects are built. The second study was designed to establish if such modulations were possible in older adults. It is argued that mindfulness training may have utility for increasing cognitive reserve, a potential mechanism by which age related declines in cognitive functions may be mitigated. It was found that both behavioural and electrophysiological markers of core attentional functions were modulated following 8 weeks mindfulness training but not following a matched active control group condition (simple brain training exercises). The reviewed extant evidence and findings of this study suggest that mindfulness meditation may enhance cognitive reserve through the repeated activation of attentional functions and associated neural activity during practice and are consistent with recent theoretical models of cognitive reserve. The potential for mindfulness training to positively modulate core attentional functions in older adults and to potentially impact cognitive ageing demands further investigation.

Attention is a cognitive mechanism that guides our perception in order to prioritize the limited resources to the most relevant information while ignoring distracting information. Attention can be voluntarily deployed to stimuli during tasks or goals, or the features of the stimulus can capture our attention either by being salient or being emotionally induced. Emotions affect multiple different cognitive processes such as attention because emotional stimuli can be relevant for defending or sustain life. This relationship between attention and emotion indicates that there should be interactive but distinct networks between these cognitive mechanisms as well as a modulative effect on perceptional and attentional systems. Emotions were in general demonstrating a facilitation affect on attentional and saccadic processes as well as broadening or narrowing the scope of attention. The reason behind emotions impact on attention was proposed to be for eliciting a change in the application of resources in order to solve the limited capacity problem and possibly to protect and sustain life. Inconsistent findings as well as limitations for emotional attention studies are discussed.

Attention deficit hyperactivity disorder (ADHD) is a neurodevelopmental disorder that manifests as a developmentally inappropriate pattern of inattention, and hyperactivity or impulsivity. ADHD is a multifactorial disorder with inter alia deficits in selective attention processing. The current diagnosis of ADHD is error-prone as it relies on subjective descriptions and external observations of behavior. Measures that are less reliant on subjective descriptions can enable more accurate and informative diagnoses of ADHD. Wang et al. (2016) have identified two event-related potential (ERP) components, posterior contralateral N2 (N2pc) and distractor positivity (PD) as predictors of ADHD symptom severity in children. N2pc reflects target selection and PD reflects distractor suppression during visual selective attention. The present study aimed to examine how target-evoked N2pc and distractor-evoked PD related to attentional capacity in non-clinical adults. Participants were presented with a visual search paradigm and a self-report scale, the Everyday Life Attention Scale (ELAS). The amplitude of target-evoked N2pc and distractor-evoked PD amplitude was compared to ELAS score in multiple linear regression models. Results displayed that the peak amplitude of target-evoked N2pc was a significant predictor of attentional capacity (as measured with ELAS), while the peak amplitude of distractor-evoked PD was not associated with attentional capacity. Participants with higher attentional capacity (ELAS score) displayed less negative peak amplitudes of target-evoked N2pc. This seems to suggest that target selection, but not distractor suppression in nonclinical adults can predict attentional capacity. However, due to a limited sample size, further research is needed before drawing any major conclusions.

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This research programme had three principal objectives. First, to assess the stability of the exercise heart rate-music tempo preference relationship and its relevance to a range of psychological outcomes. Second, to explore the influence of two personal factors (motivational orientation and dominant attentional style) in a naturalistic exercise-to-music setting. Third, to examine means by which to enhance the exercise experience above and below the ventilatory threshold. In Study 1, a mixed-methods approach was employed to capture responses to differing music tempo conditions across a range of exercise intensities. Results in Study 1 did not support a cubic relationship (Karageorghis et al., 2011) but rather a quadratic one, and there was a weak association between the optimal choice of music tempo and positive psychological outcomes. Music conditions reduced the number of associative thoughts by ~10% across all exercise intensities. Study 2 employed questionnaires with a large sample of female participants (n = 417) attending exercise-to-music classes. Results indicate that motivational orientation and attentional style (Association vs. Dissociation) influence responses to an exercise-to-music class. Study 3 examined the effects of external stimuli (music and video) on psychological variables at moderate and high exercise intensities. Findings served to demonstrate that manipulations of attentional focus can have a salient influence on affect and enjoyment even during high-intensity exercise. The contributions of the research programme include providing empirical evidence that attention can be manipulated during high-intensity exercise using theoretically-guided music selections, and music in combination with video footage, which enhance the exercise experience. Further, the research programme advances understanding of how motivational orientation and attentional style influence responses to music during exercise.