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Comparing Complex Network and Latent Factor Models of Seasonal Affective Disorder
Title
Comparing Complex Network and Latent Factor Models of Seasonal Affective Disorder
Creator
Smetter, Joseph
Date
2019
Description
Research on Seasonal Affective Disorder (SAD) has produced several etiologicalmodels of SAD symptomatology, including a common cause model...
Show moreResearch on Seasonal Affective Disorder (SAD) has produced several etiologicalmodels of SAD symptomatology, including a common cause model that conceptualizessymptoms as the result of a single underlying disease process, and the Dual VulnerabilityModel (Young et al., 1991) which posits that psychological symptoms of depressionfollow the onset of vegetative symptoms (e.g. hypersomnia, increased appetite) inindividuals with a vulnerability to seasonal changes. Studies of the structure of SADsymptomatology have been limited in their ability to evaluate these models. This studyused exploratory factor analysis and network analysis to examine baseline winter SADsymptoms (using a modified BDI-II) in 177 adults participating in a randomizedcontrolled trial of light treatment and CBT for SAD (Rohan et al., 2015). The factoranalysis supported a four-factor model that included negative cognition/affect, loss ofvitality, dysregulation, and increases in weight/appetite. The complex network model ofSAD conceptualized the network as a system of interacting symptoms. Results of thenetwork model paralleled those of the factor analysis in producing four communities ofinter-correlated symptoms. In addition to the full symptom network, a directed acyclicgraph was constructed to model causal relations between symptoms. Results suggest thatvegetative symptoms (loss of vitality and appetite/weight) lead ultimately to cognitivesymptoms, with intermediate effects of dysregulation symptoms. This partially supportsthe Dual Vulnerability model. Findings from the factor analysis and the network analysisare compared, and their implications for and treatment of SAD is discussed.
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PARENTAL RELATIONSHIP FACTORS, ACADEMIC EXPECTATIONS, AND MENTAL HEALTH OUTCOMES IN INDIVIDUALS WITH ADHD
Title
PARENTAL RELATIONSHIP FACTORS, ACADEMIC EXPECTATIONS, AND MENTAL HEALTH OUTCOMES IN INDIVIDUALS WITH ADHD
Creator
Small, Eva E.
Date
2022
Description
Individuals with Attention Deficit Hyperactivity Disorder (ADHD) are at a higher risk for developing comorbid psychological conditions...
Show moreIndividuals with Attention Deficit Hyperactivity Disorder (ADHD) are at a higher risk for developing comorbid psychological conditions including depression and anxiety by the time they reach adulthood. While there has been some research on potentially beneficial aspects of parent-child relationships that can help to improve the mental health of pediatric populations with ADHD, less work has been done to assess the long-term influence of the parent -child relationship in adults with ADHD. The purpose of this study was to add to previous research by utilizing the National Longitudinal Study of Adolescent to Adult Health (Add Health) to investigate how parenting relationship and family factors (i.e., parental warmth, behavioral autonomy, family cohesion, and parental academic expectations) predict symptoms of stress and depression in adults with ADHD. Using data from Waves I, III, and IV of the Add Health study, analyses examined whether positive parenting relationship factors were related to levels of depression symptoms and stress in a sample of participants with self-reported ADHD (N = 316). Results indicated that higher levels of family cohesion experienced in adolescence were associated with lower depression symptoms reported in adulthood, thus suggesting that family cohesion is a beneficial for individuals with ADHD. Future research should continue to examine the role that child-relationship factors can have on long term mental health outcomes in individuals with ADHD
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