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Search Results for all work with filters:

  • Psychology, Behavioral

Work 1-10 of 1026

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Article

Do cytokines really sing the blues?

by Charles L. Raison; Andrew Miller

2013

Subjects
  • Psychology, Behavioral
  • Psychology, General
  • File Download
  • View Abstract

Abstract:Close

Evidence suggests several causes for depression, including traumatic life events, disease, poison, and nutritional deficiencies. Many of these causes are associated with elevated levels of inflammatory biomarkers in the blood, which may in turn lead to inflammatory changes in the brain. Our authors examine what the latest research reveals about the link between inflammation in the brain and depression, and how a better understanding of that link can play a critical first step in the personalization of care.

Article

Social and emotional predictors of the tempo of puberty in female rhesus monkeys

by Mark Wilson; Shannon Bounar; Jodi Godfrey; Vasiliki John Michopoulos; Melinda K Higgins; Mar Sanchez

2013

Subjects
  • Biology, Neuroscience
  • Psychology, Behavioral
  • View on PubMed Central
  • View Abstract

Abstract:Close

A cascade of neuroendocrine events regulates the initiation and progression of female puberty. However, the factors that determine the timing of these events across individuals are still uncertain. While the consequences of puberty on subsequent emotional development and adult behavior have received significant attention, what is less understood are the social and environmental factors that actually alter the initiation and progression of puberty. In order to more fully understand what factors influence pubertal timing in females, the present study quantified social and emotional behavior; stress physiology; and growth and activity measures in juvenile female rhesus monkeys to determine what best predicts eventual puberty. Based on previous reports, we hypothesized that increased agonistic behavior resulting from subordinate status in their natal group, in combination with slowed growth, reduced prosocial behavior, and increased emotional reactivity would predict delayed puberty. The analyses were restricted to behavioral and physiological measures obtained prior to the onset of puberty, defined as menarche. Together, our findings indicate that higher rates of aggression but lower rates of submission received from group mates; slower weight gain; and greater emotional reactivity, evidenced by higher anxiety, distress and appeasing behaviors, and lower cortisol responsivity in response to a potentially threatening situation, predicts delayed puberty. Together the combination of these variables accounted for 58% of the variance in the age of menarche, 71% in age at first ovulation, and 45% in the duration of adolescent sterility. While early puberty may be more advantageous for the individual from a fertility standpoint, it presents significant health risks, including increased risk for a number of estrogen dependent cancers and as well as the emergence of mood disorders during adulthood. On the other hand, it is possible that increased emotional reactivity associated with delayed puberty could persist, increasing the risk for emotional dysregulation to socially challenging situations. The data argue for prospective studies that will determine how emotional reactivity shown to be important for pubertal timing is affected by early social experience and temperament, and how these stress-related variables contribute to body weight accumulation, affecting the neuroendocrine regulation of puberty.

Article

Individual Characteristics of Resilience are Associated With Lower-Than-Expected Neighborhood Rates of Cardiovascular Disease in Blacks: Results From the Morehouse-Emory Cardiovascular(MECA) Center for Health Equity Study

by Matthew L. Topel; Jeong Hwan Kim; Mahasin S. Mujahid; Yi-An Ko; Viola Vaccarino; Mohamed Mubasher; Chang Liu; Sandra Dunbar; Mario Sims; Herman Taylor; Arshed Quyyumi; Peter Baltrus; Tene Lewis

2019

Subjects
  • Health Sciences, Medicine and Surgery
  • Psychology, Behavioral
  • File Download
  • View Abstract

Abstract:Close

Background: Factors promoting cardiovascular health in the face of high risk, ie, resilience, are unknown and may identify novel areas of intervention for reducing racial health disparities. We examined neighborhood perceptions and psychological attributes of blacks living in high and low cardiovascular–risk neighborhoods, as potential characteristics of resilience promoting cardiovascular health. Methods and Results: We identified 1433 blacks residing in census tracts of Atlanta, GA, with higher-than-expected (“high” risk) or lower-than-expected (“low” risk) rates of cardiovascular mortality, hospitalizations, and emergency department visits during 2010–2014. Domains of psychosocial well-being and neighborhood quality were assessed via telephone survey between August 2016 and October 2016. Using multilevel logistic regression, odds of reporting better resilient characteristics were compared between individuals living in low- versus high-risk neighborhoods. Those from low-risk (versus high-risk) neighborhoods reported better neighborhood aesthetic quality (odds ratio [OR], 1.84), healthy food access (OR, 1.69), and absence of violence (OR, 0.67). Individuals from low-risk neighborhoods reported greater optimism (OR, 1.38), purpose in life (OR, 1.42), and fewer depressive symptoms (OR, 0.69). After full adjustment, these associations remained significant for neighborhood factors (aesthetic quality, healthy food access, violence) and psychosocial well-being (purpose in life). We found no evidence of differences in self-reported cardiovascular risk factors or disease history between low- versus high-risk neighborhoods. Conclusions: Positive neighborhood environments and psychological characteristics are associated with low cardiovascular–risk neighborhoods, despite similar prevalence of cardiovascular risk factors, in the census tracts studied. These factors may confer cardiovascular resilience among blacks.

Article

Adolescent Precursors of Adult Borderline Personality Pathology in a High-Risk Community Sample

by Christopher C. Conway; Constance Hammen; Patricia Brennan

2015

Subjects
  • Psychology, Behavioral
  • Health Sciences, Human Development
  • File Download
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Abstract:Close

Longitudinal studies of the exact environmental conditions and personal attributes contributing to the development of borderline personality disorder (BPD) are rare. Further, existing research typically examines risk factors in isolation, limiting our knowledge of the relative effect sizes of different risk factors and how they act in concert to bring about borderline personality pathology. The present study investigated the prospective effects of diverse acute and chronic stressors, proband psychopathology, and maternal psychopathology on BPD features in a high risk community sample (N = 700) of youth followed from mid-adolescence to young adulthood. Multivariate analyses revealed significant effects of maternal externalizing disorder history, offspring internalizing disorder history, family stressors, and school-related stressors on BPD risk. Contrary to expectations, no interactions between chronically stressful environmental conditions and personal characteristics in predicting borderline personality features were detected. Implications of these findings for etiological theories of BPD and early screening efforts are discussed.

Article

Early home-life antecedents of children's locus of control

by Stephen Nowicki Jr.; Steven Gregory; Yasmin Iles-Caven; Genette Ellis; Jean Golding

2018

Subjects
  • Psychology, General
  • Psychology, Behavioral
  • File Download
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Children's external locus of control has been linked to a wide variety of negative academic achievement, personality, and social adjustment outcomes. The purpose of this study was to discover which features of early home environment may facilitate the development of external as opposed to internal control expectancies in children. We use an exposome approach to analyze data from the Avon Longitudinal Study of Parents and Children (ALSPAC) cohort study, a longitudinal study starting in pregnancy in England in 1990-1992. Details of parents and their study children were collected prospectively, and children's locus of control was assessed at age 8 using an abbreviated form of the most frequently used measure of children's locus of control (Nowicki-Strickland Internal External locus of control scale). A series of stepwise logistic regression analyses were undertaken to determine the strongest independent associations. The final model (n = 4,075 children) comprised 13 variables - those with the strongest associations with the child becoming externally oriented were two that were positive indicators of the mother being distracted (TV on almost the whole time, and a consideration that pets should be treated as members of the family), three that were indicators of protective (negative) effects of interaction between mother and child (child was breast fed, mother read stories to the child, mother cuddled the baby when he/she woke at night), and two divergent indicators of maternal health behavior (more frequent cleaning of the child's hands before a meal which was associated with a heightened risk of become external, and providing a healthy-type of diet, which was associated with a reduced risk of becoming external). The findings suggest that inadequate early maternal interaction with the child is associated with an increased risk of the child being externally oriented by the age of 8.

Article

Pain input after spinal cord injury (SCI) undermines long-term recovery and engages signal pathways that promote cell death

by Joel D. Turtle; Misty M. Strain; Joshua A. Reynolds; Yung-Jen Huang; Kuan H. Lee; Melissa K. Henwood; Sandra M. Garraway; James W. Grau

2018

Subjects
  • Health Sciences, Medicine and Surgery
  • Biology, Physiology
  • Psychology, Behavioral
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Pain (nociceptive) input caudal to a spinal contusion injury increases tissue loss and impairs long-term recovery. It was hypothesized that noxious stimulation has this effect because it engages unmyelinated pain (C) fibers that produce a state of over-excitation in central pathways. The present article explored this issue by assessing the effect of capsaicin, which activates C-fibers that express the transient receptor potential vanilloid receptor-1 (TRPV1). Rats received a lower thoracic (T11) contusion injury and capsaicin was applied to one hind paw the next day. For comparison, other animals received noxious electrical stimulation at an intensity that engages C fibers. Both forms of stimulation elicited similar levels of c-fos mRNA expression, a cellular marker of nociceptive activation, and impaired long-term behavioral recovery. Cellular assays were then performed to compare the acute effect of shock and capsaicin treatment. Both forms of noxious stimulation increased expression of tumor necrosis factor (TNF) and caspase-3, which promotes apoptotic cell death. Shock, but not capsaicin, enhanced expression of signals related to pyroptotic cell death [caspase-1, inteleukin-1 beta (IL-1ß)]. Pyroptosis has been linked to the activation of the P2X7 receptor and the outward flow of adenosine triphosphate (ATP) through the pannexin-1 channel. Blocking the P2X7 receptor with Brilliant Blue G (BBG) reduced the expression of signals related to pyroptotic cell death in contused rats that had received shock. Blocking the pannexin-1 channel with probenecid paradoxically had the opposite effect. BBG enhanced long-term recovery and lowered reactivity to mechanical stimulation applied to the girdle region (an index of chronic pain), but did not block the adverse effect of nociceptive stimulation. The results suggest that C-fiber input after injury impairs long-term recovery and that this effect may arise because it induces apoptotic cell death.

Article

Prospective Associations between Emotion Dysregulation and Fear-Potentiated Startle: The Moderating Effect of Respiratory Sinus Arrhythmia

by Antonia V. Seligowski; Daniel J. Lee; Lynsey R. Miron; Holly K. Orcutt; Tanja Jovanovic; Seth Norrholm

2016

Subjects
  • Psychology, Behavioral
  • Psychology, Physiological
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Background: Emotion dysregulation has been implicated in the negative outcomes following trauma exposure. A proposed biomarker of emotion dysregulation, respiratory sinus arrhythmia (RSA), has demonstrated associations with trauma-related phenomena, such as the fear-potentiated startle (FPS) response. The current study aimed to examine the prospective association between emotion dysregulation and RSA and FPS several years following trauma exposure. Methods: Participants were 131 women exposed to a campus mass shooting on February 14, 2008. Pre-shooting emotion dysregulation was assessed in 2006-2008. Startle response, measured by orbicularis oculi electromyography (EMG), and RSA were gathered during an FPS paradigm conducted from 2012 to 2015. Results: No significant associations among emotion dysregulation, RSA, and FPS emerged among the full sample. However, emotion dysregulation predicted FPS during both acquisition (r = 0.40, p < 0.05) and extinction (r = 0.57, p < 0.01) among individuals with high resting RSA. Conclusions: Findings suggest that pre-shooting emotion dysregulation is a potent predictor of FPS several years following potential trauma exposure, and this association varies by RSA level. Results emphasize the importance of examining autonomic regulation in the association between emotion dysregulation and recovery from trauma exposure.

Article

The association between neighborhood residential rehabilitation and injection drug use in Baltimore, Maryland, 2000-2011

by Sabriya Linton; Jacky M. Jennings; Carl A. Latkin; Gregory D. Kirk; Shruti H. Mehta

2014

Subjects
  • Health Sciences, Public Health
  • Sociology, Public and Social Welfare
  • Psychology, Behavioral
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This study utilized multilevel cross-classified models to longitudinally assess the association between neighborhood residential rehabilitation and injection drug use. We also assessed whether relocating between neighborhoods of varying levels of residential rehabilitation was associated with injection drug use. Residential rehabilitation was categorized into three groups (e.g. low, moderate, high), and lagged one visit to ensure temporality. After adjusting for neighborhood and individual-level factors, residence in a neighborhood with moderate residential rehabilitation was associated with a 23% reduction in injection drug use [AOR=0.77; 95% CI (0.67,0.87)]; residence in a neighborhood with high residential rehabilitation was associated with a 26% reduction in injection drug use [AOR=0.74; 95% CI (0.61,0.91)]. Continuous residence within neighborhoods with moderate/high rehabilitation, and relocating to neighborhoods with moderate/high rehabilitation, were associated with a lower likelihood of injection drug use. Additional studies are needed to understand the mechanisms behind these relationships.

Article

Lottery Spending: A Non-Parametric Analysis

by Ryan Garibaldi; Kayla Frisoli; Li Ke; Melody Lim

2015

Subjects
  • Health Sciences, Public Health
  • Psychology, Behavioral
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We analyze the spending of individuals in the United States on lottery tickets in an average month, as reported in surveys. We view these surveys as sampling from an unknown distribution, and we use non-parametric methods to compare properties of this distribution for various demographic groups, as well as claims that some properties of this distribution are constant across surveys. We find that the observed higher spending by Hispanic lottery players can be attributed to differences in education levels, and we dispute previous claims that the top 10% of lottery players consistently account for 50% of lottery sales.

Article

Narratives in the Immediate Aftermath of Traumatic Injury: Markers of Ongoing Depressive and Posttraumatic Stress Disorder Symptoms

by Jordan A. Booker; Matthew E. Graci; Lauren A. Hudak; Tanja Jovanovic; Barbara O Rothbaum; Kerry Ressler; Robyn Fivush; Jennifer Stevens

2018

Subjects
  • Health Sciences, Mental Health
  • Psychology, Behavioral
  • Health Sciences, Medicine and Surgery
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In this study, we considered connections between the content of immediate trauma narratives and longitudinal trajectories of negative symptoms to address questions about the timing and predictive value of collected trauma narratives. Participants (N = 68) were individuals who were admitted to the emergency department of a metropolitan hospital and provided narrative recollections of the traumatic event that brought them into the hospital that day. They were then assessed at intervals over the next 12 months for depressive and posttraumatic symptom severity. Linguistic analysis identified words involving affect (positive and negative emotions), sensory input (sight, sound, taste, touch, and smell), cognitive processing (thoughts, insights, and reasons), and temporal focus (past, present, and future) within the narrative content. In participants’ same-day narratives of the trauma, past-focused utterances predicted greater decreases in depressive symptom severity over the next year, d = −0.13, whereas cognitive process utterances predicted more severe posttraumatic symptom severity across time points, d = 0.32. Interaction analyses suggested that individuals who used fewer past-focused and more cognitive process utterances within their narratives tended to report more severe depressive and posttraumatic symptom severity across time, ds = 0.31 to 0.34. Overall, these findings suggest that, in addition to other demographics and baseline symptom severity, early narrative content can serve as an informative marker for longitudinal psychological symptoms, even before extensive narrative processing and phenomenological meaning-making have occurred.
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