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Articles 1 - 9 of 9
Full-Text Articles in Biological Psychology
Effects Of Nicotine Exposure On Methamphetamine Oral Self-Administration, Extinction, And Reinstatement In Adolescent Rats, Zachary Robert Harmony
Effects Of Nicotine Exposure On Methamphetamine Oral Self-Administration, Extinction, And Reinstatement In Adolescent Rats, Zachary Robert Harmony
Electronic Theses, Projects, and Dissertations
Adolescence is a vulnerable developmental period in regards to drug initiation and use. The gateway hypothesis suggests that adolescent cigarette smoking may result in a heightened risk for methamphetamine use. However, little is understood about the role of nicotine on adolescent methamphetamine addiction. The aim of the present study was to determine whether early, late, or continuous adolescent nicotine exposure would alter oral methamphetamine self-administration, extinction, or reinstatement. A total of 164 male and female Sprague-Dawley rats were pretreated with saline or nicotine (0.16, or 0.64 mg/kg, sc) beginning on postnatal day (PD) 25 for 10 consecutive days. On PD …
Preschool Executive Function Predicts Childhood Resting State Functional Connectivity And Adhd And Depression, Elizabeth Hawkey
Preschool Executive Function Predicts Childhood Resting State Functional Connectivity And Adhd And Depression, Elizabeth Hawkey
Arts & Sciences Electronic Theses and Dissertations
Background: Measures of executive function (EF), such as the Behavior Rating Inventory of Executive Function, distinguish children with Attention-Deficit/Hyperactivity Disorder (ADHD) from control children, but less work has examined relationships to depression or brain network organization. This study examined whether early childhood EF predicted a new onset or worsening of ADHD and/or depression, and examined how early childhood EF related to functional connectivity of brain networks at school age. Methods: Participants were 247 children, enrolled at ages 3-6, from a prospective study of emotion development. The BRIEF Global Executive Composite (BRIEF-GEC) was used as the measure of EF in early …
Mediators And Moderators Of Childhood Family Adversity And Adult Cortisol Response: The Role Of Marital Conflict Behavior, Jeffrey P. Winer
Mediators And Moderators Of Childhood Family Adversity And Adult Cortisol Response: The Role Of Marital Conflict Behavior, Jeffrey P. Winer
Doctoral Dissertations
Childhood family adversity influences behavioral and physiological response processes to acute interpersonal stress. Additionally, conflict behaviors in marriage are primary determinants of stress response and related psychological problems in adulthood. As little research has examined these two important literatures simultaneously, further work is warranted to clarify the role of marital conflict behavior in the relation between childhood family adversity and adult cortisol response to conflict. The current study examined relations between childhood family adversity, observed marital conflict behaviors, and salivary cortisol in response to acute marital conflict among 228 different-sex newlywed couples. We examined intrapersonal “actor” effects as candidate mediators …
Activation And Habituation Of The Cingulate Cortex During Emotion Processing In Healthy Controls, Borderline, And Schizotypal Personality Disorder, Emily Balevich
Dissertations, Theses, and Capstone Projects
Disturbances in emotional functioning are central features of the clinical profiles of both borderline and schizotypal personality disorder (BPD and SPD, respectively). BPD is characterized by a high sensitivity to emotional stimuli and unusually strong and long-lasting reactions, indicative of impaired habituation to emotional stimuli (Linehan, 1993). Previous research suggests that SPD patients demonstrate limbic hyper-reactivity to unpleasant stimuli, at least initially, but intact habituation to repeated presentation of unpleasant stimuli (Hazlett et al., 2012). The cingulate cortex supports various aspects of emotion processing and regulation, and abnormalities of this region have been related to emotion dysfunction in SPD and …
Cumulative Trauma, Emotion Reactivity And Salivary Cytokine Response Following Acute Stress Among Healthy Women., Yvette Z. Szabo
Cumulative Trauma, Emotion Reactivity And Salivary Cytokine Response Following Acute Stress Among Healthy Women., Yvette Z. Szabo
Electronic Theses and Dissertations
This study furthers understanding of how trauma exposure may be connected to the development and maintenance of poor health by focusing on cytokines, tightly regulated proteins of the immune system. Cytokine responses to acute stress have been associated with the onset of poorer mental health in physically healthy women. The present study examined how two factors recently associated with cytokine reactivity –cumulative trauma and emotion reactivity– are associated with salivary cytokine reactivity among healthy women. Seventy-one women, screened to be physically and mentally healthy, completed a laboratory acute stress paradigm and self-report measures of state emotion and trauma exposure. Participants …
Cognitive Functioning During Conflict In Intimate Partner Relationships Between Traumatized And Non-Traumatized Samples, Kylie N. Coleman
Cognitive Functioning During Conflict In Intimate Partner Relationships Between Traumatized And Non-Traumatized Samples, Kylie N. Coleman
Doctor of Psychology (PsyD)
Significant differences have been found in neural connectivity of the brain in frontal, central, temporal, and parietal areas of individuals who experienced childhood trauma compared to those who had not (Cook, Ciorciari, Varker, & Devilly, 2009). This study investigated the relationship between the number of distressing and traumatic life experiences and participants’ neural responses to observing simulated conflict in intimate relationship. Graduate students (n = 11) answered conflict resolution and emotional activation questions while watching a simulated, escalating marital conflict. The participants’ neural responses were recorded via EEG mean power data from frontal and temporal brain regions. Heart rate (bpm) …
Restoration Of Attentional Deficits After Concussion, Katharine B. Earle
Restoration Of Attentional Deficits After Concussion, Katharine B. Earle
Cal Poly Humboldt theses and projects
Difficulties with concentration and attention are among the most prevalent symptoms experienced after concussion. Rest has been the most common form of recovery from concussion; however, new research is suggesting mild mental exertion to be an effective aid in recovery. Drawing from Attention Restoration Theory, this study evaluated the idea that cognitive engagement with natural environments can mitigate post-concussion directed-attention deficits. A between subjects repeated measures design was used to test directed-attention after video exposure to restorative/nature and nonrestorative/city environments. Measures of mood, connectedness to environment, and symptomology scores were also collected. No meaningful difference between exposure type was found …
The Impact Of Stress On Steroid Hormones And Cue Reactivity In Smokers And Gamblers, Stephanie Elaine Wemm
The Impact Of Stress On Steroid Hormones And Cue Reactivity In Smokers And Gamblers, Stephanie Elaine Wemm
Legacy Theses & Dissertations (2009 - 2024)
Addictions, both substance and behavioral, have been conceptualized as having similar biopsychosocial processes with different opportunistic expressions (Shaffer et al., 2004). Biological processes such as the hormonal response to stress as measured by cortisol, dehydroepiandrosterone (DHEA), and the ratio of the DHEA/cortisol may be among the variables underlying the disposition to develop an addictive disorder, regardless of whether it is a substance-based or a so-called behavioral addiction. The current study aimed to examine whether physiological and psychological reactions to stress are similar in high-frequency smokers and gamblers. The subjective (urges, cravings) and physiological responses (skin conductance and heart rate) of …
Differentiating The Effects Of Animal-Assisted Versus Equine Facilitated Psychotherapy On Positive Psychological Outcomes Through A Stress Induction Context, Catherine J.V. Jones
Differentiating The Effects Of Animal-Assisted Versus Equine Facilitated Psychotherapy On Positive Psychological Outcomes Through A Stress Induction Context, Catherine J.V. Jones
Electronic Theses and Dissertations
The unique benefits of Equine Facilitated Psychotherapy (EFP) such as the human-horse bond, a non-traditional therapy setting, and performing altruistic acts are thought to facilitate positive change in humans. One mechanism by which positive changes occur is through improved coping and resilience in the face of stress. To date, only a handful of correlational studies speak to the potential effects of EFP on resilience-based outcomes. Thus, this study sought to address this gap in the literature by exploring the benefits of EFP compared to traditional Animal Assisted Therapy (AAT) in an experimental context. Specifically, we examined the effects of different …