The What And When Of Psychomotor Retardation: A Multimodal Approach, Ole Edvard Granrud

LSU Master's Theses

Psychomotor retardation (PMR) is a diagnostic criterion that reflects a gross slowing of movement, speech, and thought. More so, PMR is a transdiagnostic, pervasive source of impairment and distress that can be observed across disorders, such as Major Depressive Disorder (MDD), Schizophrenia (SZ), and Bipolar Disorder (BD). In clinical settings, PMR is associated with more severe psychopathology and is used to both inform treatment and predict long-term treatment outcomes. However, despite being clinically meaningful, PMR is poorly understood and is often conceptualized as a motor disturbance that happens in isolation from, rather than concurrently with, higher-order cognitive-emotional processes – such …

Health Service Utilization And Conduct Problems: The Role Of Callous-Unemotional Traits And Juvenile Justice System Processing, Julianne Speck

LSU Master's Theses

Previous research indicates that youth with conduct problems, who are overrepresented in the juvenile justice system, are at risk for utilizing a disproportionate amount of health services compared to youth without these problems. The present study investigates self-reported antisocial behavior, juvenile justice system processing type, and callous-unemotional (CU) traits as predictors of health service utilization (medical and mental health service use and out-of-home placement) across adolescence in a sample of justice-involved males from the Crossroads Study. A total of 766 participants provided data at ten appointments over a period of seven years. A series of linear multiple regressions were used …

Effects Of Neighborhood Disadvantage And Peer Deviance On Conduct Problems: Interactions With Age Of Onset, Courtney Marie Goetz

LSU Master's Theses

Youth with conduct problems (CP) generally fall into two developmental classifications, child-onset and adolescent-onset, which exhibit different causal processes and life course trajectories. Research suggests that child-onset CP is more likely to be related to individual predispositions, while adolescent-onset CP is more associated with social factors, such as peer delinquency. Living in impoverished and disorganized neighborhoods increases the risk for associating with deviant peers. Thus, the current study tested the hypothesis that neighborhood factors would be more strongly associated with adolescent-onset CP than child-onset CP, which would be explained by a greater association with deviant peers. Linear and negative binomial …

The Impact Of Social Support Sources On Lgbtq Adolescents, Kaitlyn C. Mccauley

LSU Master's Theses

Research demonstrates that adolescents social support plays an important role in protecting against adverse events (e.g., Brewin & MacCarthy, 1989; Muzik et al., 2017). LGBQ adolescents have been shown to experience greater adverse experiences such a daily microaggressions and higher rates of both childhood adversity (Baams, 2018) and peer victimization (Kosciw et al., 2014). Increased stressors often lead to poorer outcomes in this population. Social support research for adolescents has shown that different sources of social support have shown to buffer these reported issues (e.g., greater parent and peer support buffers suicidal ideation, Fredrick et al., 2018). Studies with LGBQ …

Examination Of Autism Symptoms Across Ethnic Groups: Cross-Cultural Validation Of The Baby And Infant Screen For Children With Autism Traits (Biscuit), Esther Hong

LSU Doctoral Dissertations

Autism spectrum disorder (ASD) a neurodevelopmental disorder characterized by impairments in social communication and interaction and the presence of restricted and repetitive behaviors (American Psychiatric Association, 2013). Variations in prevalence across different racial and ethnic groups have been reported. Though the reason for these variations is unclear, racial and ethnic disparities in access to early screening services, cultural differences in ASD presentation, and the use of culturally insensitive screening tools appear to contribute to disparities in ASD diagnosis. Thus, cultural validation studies of ASD screening tools are needed to investigate the cultural utility of these instruments for use with diverse …

Baseline Differences In Driving Frequency As A Predictor Of Cognitive Decline, Luke R. Miller

LSU Master's Theses

Driving is a complex task heavily dependent on cognitive functions which can decline with age including executive functions and processing speed. Although driving cessation as a predictor of cognitive changes has been studied, driving frequency is understudied in the literature. Thus, the objective of the current study is to evaluate the predictive utility of driving frequency at baseline toward objective cognitive decline beyond other factors associated with cognitive decline (e.g., depression, general functional mobility). The sample included a subset of 1,426 older adults (M age = 77.6, SD = 7.1) from the Rush University Memory and Aging Project. Participants completed …

Development And Validation Of A Measure For Social Support: Perceived Social Support Inventory, Lindsay Marie Clark

LSU Doctoral Dissertations

Abstract

The literature consistently acknowledges the protective function of social support against various negative psychological and physiological outcomes (Cohen & Wills, 1985; Dunst et al., 1986; Taylor, 2011; Uchino, 2009). Further, social support can emerge from different members that comprise an individual’s social network, such as friends, family, teachers, colleagues, and members of common interest groups. Given the important role that social support plays in health outcomes, the importance of psychometrically sound measures for assessing the construct is essential for use in research and clinical settings. However, many of the current measures of social support are outdated, are limited in …

The Relationship Between Family Environment And Specific Phobias, Jerrica Renee Guidry

LSU Doctoral Dissertations

Specific phobias are the most prevalent disorder among adults and highly common among children. Additionally, specific phobias diagnosed in childhood has been associated other serious mental illnesses later in life (de Vrie et al., 2019). Research pertaining to parenting factors associated with anxiety disorders has been extensive, including parental psychopathology, parent-child relationships, parental control, and parental stress. However, less emphasis has been placed on familial factors which may contribute to the development and maintenance of specific phobias. According to the limited literature focusing on the family factors associated with specific phobias, parent psychopathology and parent over-control are important factors. Multiple …

Factors Associated With Racial And Ethnic Minority Youths' Mental Health Help-Seeking At School, Sam Allouche

LSU Doctoral Dissertations

Despite the high prevalence and associated consequences of mental health problems in youth, adolescents with these problems are often left untreated. This service gap is even greater in racial and ethnic minority youth who not only engage in treatment less frequently, but also experience far greater discrimination and systemic inequality than non-ethnic or racial minority students; factors further contributing to a need for service. Schools may provide an ideal location to treat mental health problems in youth, in part because schools eliminate structural barriers, but also because school staff have an opportunity to observe students across a range of functioning. …

Development And Initial Validation Of The Adolescent Social Media Use Inventory, Johannah Smith

LSU Master's Theses

Adolescents are the largest population group that accesses social media applications (Boneva et al., 2006; Gross, 2004; Subrahmanyam, Reich, Waechter, & Espinoza, 2008). However, there is little known on how to measure the positive (i.e., enabling privacy settings, friending parents and other family members on social media platforms) and negative (i.e., public social media account, hiding posts from parents) adolescent social media use. This is an important oversight given the relationship between negative uses of social media and increased delinquency, aggression, and decreased parent-adolescent communication (Coyne et al., 2014). The present study sought to address this limitation in the research …

Individual Differences In The Criminogenic Effects Of Discrimination: An Exploration Of The Role Of Impulse Control And Callous-Unemotional Traits, Toni Walker

LSU Doctoral Dissertations

The association between perceived discrimination and engagement in criminal offending has been well studied, especially in samples of minority (predominantly Black, Hispanic, and Latinx) adolescents. Several theories have been developed (Social Schematic Theory) and adapted (General Strain Theory) in an attempt to explain how harmful, discriminatory experiences may have an effect on an individual’s behavior. There may be variability in how an individual responds to perceived discrimination, however, but the moderating role of personality characteristics has not been explored. Impulse control and callous-unemotional (CU) traits are both established predictors of offending and may also relate to the mechanisms that theories …

The Use Of Non-Immersive Virtual Reality As A Functional Rehabilitation Tool For Older Adults With Cognitive Decline, Ross M. Divers

LSU Master's Theses

There is currently no cure for age-related cognitive decline or dementia and current pharmacologic interventions have had limited success at improving daily functioning. Consequently, older adults who experience cognitive decline require assistance with daily activities, which can be quite expensive and lead to caregiver burden. Repeated performance of everyday tasks has been shown to improve performance but requires supervision and direction by another person. The present study evaluated a low-cost computer training program that will use non-immersive virtual reality to enable participants with dementia or cognitive decline to independently practice meaningful everyday activities (e.g., meal preparation). Participants (N= 8) with …

Smoking And Opiate Withdrawal Symptoms: The Impact Of Psychosocial Variables Among Individuals Receiving Medication Assisted Treatment For Opioid Detox, Cristina Abarno

LSU Master's Theses

Individuals with opioid use disorder (OUD) endorse high rates of combustible smoking (Zale et al., 2015) which is associated with poorer outcomes (e.g., opioid craving and lower detoxification completion rates) among individuals receiving medication-assisted treatment (MAT; Mannelli, Wu, Peindl, & Gorelick, 2013) and lower smoking cessation rates in smoking cessation treatment (Okoli et al., 2010). The complex pharmacological relationship between opioids and nicotine may help explain these findings (Kohut, 2017), however little is known about psychosocial variables that influence MAT processes among combustible smokers with OUD. The present study sought to expand upon prior work (Mannelli et al., 2013) by …

Mindfulness And Physical Activity As Moderators Of Behavioral Inhibition Sensitivity And Psychological Distress, Edward Silber

LSU Master's Theses

Framed in Reinforcement Sensitivity Theory, the current study examined the moderating effects of mindfulness and moderate-to-vigorous physical activity (MVPA) on the relationship between behavioral inhibition system (BIS) sensitivity and psychological distress. Participants (N=183) were college students at a large public university in the Southeastern United States. Data were collected using an online survey with self-report questionnaires that demonstrated acceptable reliability. Data analysis utilized multiple linear regression models to test study hypotheses. Findings revealed a significant positive relationship between BIS sensitivity and psychological distress, with mindfulness and MVPA significantly moderating this association. Specifically, increased reports of mindfulness and MVPA …

Examining Serial Position Effects In Individuals With And Without Mild Cognitive Impairment, Daniel Scott Weitzner

LSU Doctoral Dissertations

Serial position effects (SPEs) have shown to be sensitive predictors of future cognitive decline (Bruno et al., 2013) and conversion from mild cognitive impairment (MCI) to Alzheimer’s disease (AD; Egli et al., 2014), even when accounting for total learning and memory scores. However, conflicting results have been found in the literature, which may be at least partially related to the many ways in which SPEs have been calculated. The current study aimed to address the discrepancies in the literature by examining SPEs in participants with and without MCI.

86 participants (57 healthy comparison, 29 MCI) completed the California Verbal Learning …

An Investigation Of How Previous Diagnoses Affect The Developmental Functioning Of Children At Risk For Autism Spectrum Disorder, Michaela Brown

LSU Master's Theses

Research has shown that children with autism spectrum disorder (ASD) often have co-occurring medical and/or psychiatric disorders. This current study aimed to investigate how previous diagnoses, which may become comorbidities of ASD if diagnosed, affect the developmental functioning of children presenting as at risk for ASD compared to those presenting with no risk. Developmental areas such as communication, motor, adaptive, cognitive and social, as well as overall developmental functioning, were considered in the analysis. 11,970 children under the age of three were studied. Results found that the presence of previous diagnoses significantly predicted developmental functioning, particularly in the motor functioning …

Developmental Functioning Of Infants And Toddlers With Neurodevelopmental Disorders, Megan Callahan

LSU Master's Theses

Autism spectrum disorder (ASD), epilepsy, and cerebral palsy (CP) are some of the most common neurodevelopmental disorders among children with prevalence rates of 1.85% (Maenner et al., 2020), 1.2% (Zack & Kobau, 2017), and between 0.21 and 0.31% (Christensen et al., 2013), respectively. These neurodevelopmental disorders are highly comorbid with each other and with other disorders, such as intellectual disability (ID). While previous research has investigated developmental functioning in these neurodevelopmental disorders, it has primarily focused on only two at a time and in older children or adults. The current study aimed to investigate developmental functioning in these neurodevelopmental disorders …

The Predictive Influence Of Challenging Behavior On Parent Stress In Young Children With Autism Spectrum Disorder, Paige Weir

LSU Master's Theses

Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by deficits in social communication, restricted interest, and repetitive patterns of behavior. Individuals with ASD also exhibit challenging behaviors that affect parent and caregiver stress directly. However, researchers have not yet examined the predictive influence of specific challenging behaviors on parent stress, particularly in young children (i.e., infants and toddlers) with ASD. Therefore, the current study expands existing literature by a) investigating the influence that challenging behaviors of young children with ASD have on parent stress and b) examining the unique contribution that each behavior (i.e., aggressive/disruptive behavior, stereotypy, and self-injurious …

Internal Entrapment And Fearlessness About Death As Precipitants Of Suicidal Thoughts And Planning In The Context Of Post-Traumatic Stress Disorder (Ptsd), D Nicolas Oakey-Frost

LSU Master's Theses

The post-traumatic stress disorder (PTSD) and suicidal thoughts and behaviors (STB) relationship has been extensively studied but potential explanatory mechanisms remain inconclusive. Entrapment is one variable that evinces a theoretical and empirical mechanistic relationship with PTSD and STB. Further, entrapment and fearlessness about death (FAD) have not been linked but are hypothesized to interact in a way that facilitates vulnerability for intense suicidal thinking and potentially suicidal behavior. The current study examined the indirect effect PTSD symptoms have on suicidal ideation, planning, and likelihood of future suicide attempt through both internal (IE) and external entrapment (EE), moderated by levels of …

The Bidirectional Effects Of Serious Conduct Problems, Anxiety, And Trauma Exposure: Implications For Our Understanding Of The Development Of Callous-Unemotional Traits, Emily Lynne Robertson

LSU Doctoral Dissertations

The association of anxiety and trauma with childhood conduct problems has long been the focus of research, and more recently this area of research has become critical to understanding the development of callous-unemotional (CU) traits. Research in samples of children and adolescents has indicated that those elevated on both CU traits and anxiety seem to show more severe externalizing behaviors and are more likely to show histories of trauma. These findings have typically been interpreted as being indicative of a unique casual pathway to CU traits in those high on anxiety. However, an alternative explanation is that the higher rates …

Understanding The Association Between Loneliness And Callous-Unemotional Traits In Young Adults, Tatiana Michelle Matlasz

LSU Doctoral Dissertations

One of the defining features of callous-unemotional (CU) traits is a lack of distress or care about performance in important activities or the negative effects of one’s behavior on others. However, recent research has found a significant relationship between CU traits and loneliness, suggesting individuals with elevated CU traits may be aware of impaired social functioning and care about their performance in social relationships. Given this somewhat surprising finding, the current study sought to identify possible explanations for this association. Specifically, we tested the following potential mediators of the relationship between CU traits and loneliness: peer rejection, relationship quality, social …

Examining Intraindividual Variability As A Predictor Of Cognitive And Functional Decline In Older Adulthood, Alyssa N. De Vito

LSU Doctoral Dissertations

Intraindividual variability (IIV) has recently emerged as a promising early indicator of future cognitive decline (Haynes et al., 2017). However, the literature is currently limited in that the majority of studies have only examined IIV in one cognitive domain: reaction time. Explorations into the relationship between IIV and functional status are also sparse, with only one recent study exploring this relationship (Schmitter-Edgecombe et al., 2020). The present study aimed to address gaps in the literature by examining IIV in differing cognitive domains to determine which measure(s) were the best predictors of cognitive and functional status at baseline as well as …

The Relationship Between Emotion Regulation And Substance Use Treatment Attrition, Melanie Ruth Roys

LSU Doctoral Dissertations

Severe substance use disorders are characterized by chronic cycles of relapse; however, individuals who complete substance use treatment are less likely to experience relapse. Research has focused on trying to identify factors that predict treatment dropout to help improve treatment outcomes. Most of this research has focused on examining demographic and patient-specific factors, with little success in reliably predicting treatment attrition. There has been less focus on investigating transdiagnostic factors that span across discrete psychological diagnoses and demographics. The present study sought to determine if self-report and behavioral measures related to emotion regulation predicted inpatient substance use treatment dropout above …

Development And Initial Psychometric Properties Of The Cannabidiol Outcome Expectancies Questionnaire (Cbd-Oeq), Katherine Walukevich-Dienst

LSU Doctoral Dissertations

In the United States, a growing number of adults are using products containing cannabidiol (CBD), a non-psychoactive cannabinoid marketed as a treatment for a large number of medical and mental health conditions, despite limited support for the efficacy of CBD for these conditions. Identification of CBD-related outcome expectancies (i.e., beliefs concerning the anticipated effects of using CBD) could be useful in understanding the etiology and maintenance of CBD use. Although there are several measures of cannabis outcome expectancies, no known CBD-specific outcome expectancy measure exists. The current study used a three phase, mixed methods approach to develop and test the …

General Versus Person-Specific Models Of Psychotic-Like Symptoms, Thanh Phuoc Le

LSU Doctoral Dissertations

Schizophrenia is a chronic brain disease and carries a profound burden of illness and disability. Schizotypy, reflecting personality traits associated with a vulnerability for schizophrenia-spectrum pathology, is characterized, in part, by a tendency to experience psychotic-like symptoms (PLS). Perceived social support, or lack thereof, plays a role in the intensity of PLS. Etiological mechanisms underlying PLS, such as monolithic social support, are putatively expected to be common across individuals sharing elevated schizotypal traits. This “nomothetic” model fails to appreciate that social support is multidimensional and likely idiographic in its effects on PLS. Another salient issue that arises when attempting to …

The Relationship Between Type Of Parental First Concerns And Severity Of Developmental Delays In Toddlers With Autism Or Developmental Delay, Joshua J. Montrenes

LSU Master's Theses

Autism spectrum disorder (ASD) is characterized by impairments in social communication and the presence of restricted, repetitive behaviors. The impairments which are commonly associated with ASD manifest during early development as delayed speech or impaired social skills, for example. These early indicators are often noticed by parents who convey concern to medical professionals. Research has found associations between these early parental concerns and a later diagnosis of autism, noting their predictive validity. Research has yet to address the relationship between types of parental concerns and developmental functioning. This study examined whether certain parent reported concerns are more predictive of impaired …

Experiences Of Hospitalization For Suicide Ideation And Suicide Attempt In Gender Diverse Adults, Alix B. Aboussouan

LSU Master's Theses

Individuals who identify as Transgender/Gender Diverse (TGD) have elevated rates of suicidal thoughts and behaviors (STBs). No studies have determined the prevalence of hospitalization for STBs in TGD adults or whether this care is viewed as helpful. Understanding hospitalization experiences may determine potential new treatment targets and training initiatives integral to developing affirming care experiences for TGD individuals. This study sought to explore the lifetime prevalence of hospitalization for suicide ideation (SI) and suicide attempt (SA) for TGD individuals, determine how helpful TGD individuals find hospitalization, and investigate demographics, gender minority stressors, or provider/hospitalization characteristics that correlate with hospitalization helpfulness …

Parental Mental Health Help Seeking: Variables Associated With Asian American Parent Help Seeking Intent, Grace L. Chen

LSU Master's Theses

There is a vast disparity between children who have mental health concerns and rates of service utilization. This disparity is even greater for children of ethnic minority populations. Understanding the factors contributing to parent help seeking behavior may help address the gap in service utilization. Asian Americans specifically have low rates of mental health service utilization among adults. However, there is limited research on parent help seeking in Asian American parents. In combination with low service utilization across children with mental health concerns, Asian American children are an at-risk population. The study aims to advance research by exploring variables relating …

The Effects Of Familial Support, Social Support, And On-Campus Involvement On Posttraumatic Stress Symptoms On Academic Achievement, Kelsey G. Coulthard

LSU Master's Theses

Research demonstrates that students with higher levels of posttraumatic stress symptoms (PTS) exhibit lower grades in college (Pereira, et al., 2018). Further, higher levels of PTS during the first semester of college leads to higher rates of withdrawing from school (Boyraz, Horne, Owens, & Armstrong, 2013). Although there is ample evidence that the association between traumatic experiences are negatively correlated with academic performance, little is known about factors that may moderate or influence the relationship. Research has determined that higher levels of social support may facilitate recovery from trauma exposure and may lessen PTS symptoms in college students (Grasso, 2011). …

Exploring Attentional Biases, Dispositional Mindfulness, And The Suicide Stroop, Emma H. Moscardini

LSU Master's Theses

Extant research has found that attentional biases to suicide-related stimuli are relevant to suicidal thoughts and behaviors (STBs). As such, attentional biases are a core feature of both the Fluid Vulnerability Theory of Suicide and the cognitive model of suicide. Individuals with an STB history have demonstrated attentional biases to suicide-related stimuli on a suicide Stroop task, and this attentional bias has been found to aid in prediction of suicide attempts at six-month follow-up. Better understanding this attentional bias may be useful for informing mindfulness-based interventions which target attentional biases, as dispositional mindfulness has been found to be related to …