Social and Behavioral Sciences Commons^™

The Impact Of Task Load On Neural Entrainment To Attended Speech: A Dual-Task Magnetoencephalography (Meg) Paradigm, Michelle Tamar Kassel

Theses and Dissertations

Speech comprehension in a noisy environment requires active cognitive control mechanisms to select the relevant speech signal while filtering out irrelevant distractions. When processing speech in a multitask scenario, neural resources underlying cognitive control are considerably burdened and interfering information becomes more difficult to ignore. The present study utilized magnetoencephalography (MEG) to investigate the impact of multitasking on selective attention to speech. Twenty healthy adults performed a multitask paradigm with varying levels of both competing auditory distraction and concurrent visual working memory load. While increased visual working memory load was associated with reduced selective attention to speech in both the …

The Association Of Aerobic Fitness With Resting State Functional Connectivity And Verbal Learning And Memory In Healthy Young Adults, Kyle Joseph Jennette

Theses and Dissertations

The beneficial effects of exercise and cardiopulmonary fitness on general health, quality of life, and reduction of mortality are well known in older adults. There is evidence to support the positive effects of exercise and aerobic fitness on psychiatric and neurocognitive function in children, adults, and older adults. Indeed, many studies have explored the positive effects of aerobic fitness on slowing cognitive decline associated with normal and pathological aging. However, comparatively fewer empirical studies in the literature exist to support and understand the effects of aerobic fitness on the developing brain, particularly during adolescence and young adulthood, especially as it …

Exploring The Effect Of Service Dogs On Ptsd Symptoms In Veterans, Lauren Floore-Guetschow

Theses and Dissertations

Utilizing psychiatric service dogs for PTSD is a relatively new area of research and treatment option for veterans. This qualitative research study aims to look at the effects of the use of psychiatric service dogs on veterans with PTSD for veterans who have or were previously receiving traditional mental health treatment. The researcher was looking to see: how does day-to-day life look for these veterans, have they noticed a change in PTSD symptoms, what are their views on mental health treatment, and how do they view being in public? 7 veterans, from a variety of conflicts and branches were interviewed …

Gender Role Conflict, Emotion Regulation, And Ptsd Symptom Severity In Acutely Injured Trauma Survivors, Katelyn Elaine Heyrman

Theses and Dissertations

Within the acutely injured population, men are at an increased risk for trauma exposure and hospitalization. Previous literature has suggested that emotional dysregulation and masculine gender roles are associated with psychological distress and maintenance of PTSD symptoms. Despite these findings, researchers have focused their attention on masculine gender roles within the Veteran and college populations. The current study aimed to assess the Gender Role Conflict within the acutely injured population and determine if emotion regulation strategy moderated the relationship between masculine gender roles and PTSD symptom severity. Participants consisted of 90 traumatically injured, cisgender males (Mage= 44.88 years; 60% White) …

Measuring Outcome Expectations In Academic Persistence, Michael Kozlowski

Theses and Dissertations

Academic persistence, or a student’s decision to leave an institution of higher education, has remained an inveterate puzzle to researchers, theoreticians, institutions, and counselors. Despite a large body of theoretical and empirical literature, the rate at which students leave institutions of higher education has remained stable over the past 50 years. The discipline of counseling psychology has a long tradition of investigating academic persistence from a psychological perspective. Earlier investigations in counseling psychology focused on identifying psychopathological traits, cognitive abilities, and contextual factors associated with a student’s decision to leave. These investigations were met with a sociological reaction that has …

Shaped By The Environment: The Influence Of Childhood Trauma Exposure, Individual Socioeconomic Position, And Neighborhood Disadvantage On Brain Morphology, Elisabeth Kathleen Webb

Theses and Dissertations

The relationship between an individual’s socioeconomic position (SEP) and their overall physical and mental health has been well demonstrated. Far less is known about how area-level factors, such as neighborhood disadvantage, “get under the skin”. Previous research indicates lower SEP and childhood trauma negatively effects brain structure and function. The hippocampus, amygdala, and ventromedial prefrontal cortex (vmPFC) are particularly vulnerable to adversity. The current study investigated how individual SEP, childhood trauma, and neighborhood disadvantage impact these structures. Two-hundred and fifteen individuals were recruited from an Emergency Department in southeastern Wisconsin. Two-weeks post-traumatic injury, participants completed a structural magnetic resonance imaging …

From Playing To Directing: A Qualitative Inquiry Into The Athlete To Coach Transition, Jamie M. Zalasin

Theses and Dissertations

The following dissertation explored six (n = 6), current, professional baseball coaches' experience with transitioning from playing to coaching. Some experiences associated with athletic transitions based on the literature include missing sport or competition, body changes, social status changes, and vocational concerns (Wylleman & Reints, 2010; Park & Lavallee, 2015). Additionally, the salience of one's athletic identity can create difficulties such as identity loss, emotional distress, and grief (Lally, 2007; Fortunato & Marchant, 1998; Grove, Lavalle, & Gordon, 1997). Within vocational concerns, there can be uncertainty about the next career's link to sports. For many professional athletes, their age of …

Testing Reliability Of Biophilic Design Matrix Within Urban Residential Playrooms, Ellen Marte

Theses and Dissertations

Biophilic interior design in urban playrooms has been greatly understudied. We measured inter-rater reliability of the Biophilic Interior Design Matrix (BID-M) and matrix items by quantitatively coding images of 45 New York City residential playrooms. Findings suggest that the BID-M needs to be modified to better assess urban playrooms.

Presence And Degree Of Contrafreeloading In African Grey Parrots (Psittacus Erithacus), Gabriella E. Smith

Theses and Dissertations

This study examined contrafreeloading—choosing a physical task to access food over free food—in two Grey parrots (Psittacus erithacus). Both birds contrafreeloaded for food of equal or higher value, but differed in which contrafreeloading task they preferred. Differences between the parrots are considered as individual preferences for self-reinforcing tasks.

Using Object-Choice Tasks To Investigate Sensory Perception In Sunda Pangolins (Manis Javanica), Joshua Dipaola

Theses and Dissertations

Pangolins are one of the most heavily poached, yet least understood mammals in the world. In this study, we used an object-choice task to assess the ecological relevance and use of sensory information in Sunda pangolin foraging behavior. This is the first controlled experiment on pangolin behavior to our knowledge.

Talking And Thinking About Animal And Artifact Kinds Via Different Types Of Generics, Lyan-Joy M. Lugay

Theses and Dissertations

Generic statements are expressions that talk about kinds or categories and there are several forms. Through the use of surveys, this study examined the way native English speakers talk and think about novel animal kinds and artifacts using two forms: the definite singular form and the bare plural form.

Attention Capture By Episodic Long-Term Memories: Evidence From Eye Movement Data, Allison Eleanor Nickel

Theses and Dissertations

Successfully navigating the world on a moment-to-moment basis requires the interaction of multiple cognitive processes. Therefore, studies that examine when and how these fundamental processes interact can provide important insights into how we behave. Many studies indicate that long-term memory can facilitate search for a target object (e.g., contextual cueing), however, the ways in which long-term memory might capture attention and disrupt goal-directed behavior have not been well studied. In five experiments, questions about whether encoded objects might capture attention, even when they are task-irrelevant, were addressed. Each experiment began with an encoding phase, where participants were instructed to commit …

How Adult Christians Incorporate Their Faith With The Psychology Of Forgiveness: A Qualitative Methods Study, Sonia Marta Pinero Lucci

Theses and Dissertations

This study examines Christian adult’s perceptions, practices of, and tendencies towards the phenomenon of forgiveness. Research in the field up to this date is valuable in understanding forgiveness theory, efficacy of forgiveness models, as well as the impact of religion and spirituality on forgiveness. However, research has progressed to reduce forgiveness, as well as religion and spirituality to its parts, thus research has moved away from the complete, whole concepts of forgiveness and faith. Lately, research has attempted to fill this gap by understanding how people of faith forgive, though faith groups likely perceive and practice forgiveness differently. Therefore, the …

Flexibility Of A Conditioned Response: Exploring The Limits Of Attentional Capture By Fear, Greta Nicole Minor

Theses and Dissertations

Recent work from the attention capture literature suggests that attention may be captured by stimuli with learned aversive value, even when these fear conditioned stimuli (CS) are task-irrelevant and not physically salient. Moreover, relatively little work in the human fear conditioning literature has investigated whether conditioned fear responses can flexibly transfer to a neutral associate of a CS. We examined, for the first time, whether fear-conditioned capture effects were able to transfer to the associate of a CS. Twenty-seven participants encoded novel scene-object pairs. Following encoding, scenes were presented alone during a conditioning phase. Scenes co-terminated with shock 100% (CS100), …

The Role Of Mirror Neurons In Relational Dysfunction In Posttraumatic Stress Disorder, Andrew Walker

Theses and Dissertations

American military involvement in Iraq and Afghanistan has created a new generation of veterans suffering from posttraumatic stress disorder (PTSD). It has repeatedly been noted that these returning veterans have a particularly difficult time reconnecting with family and friends. Because of these findings, the impact of multiple deployments and prolonged combat exposure is shifting from the individual veteran to its effects on their ability to reestablish intimate relationships after the completion of their service.

Over the last 20 years, numerous studies have directly observed the firing of the same neurons of non-human primates while seeing a member of their species …

Investigation Of The Relationship Between Mindfulness And Empathy In Pre-Nursing Students Exposed To A Four-Week Mindfulness Training, Debra L. Klich

Theses and Dissertations

Objective: To investigate the effects of a four-week mindfulness program on levels of mindfulness, empathy, and anxiety in a group of pre-nursing students.

Methods: This study utilized a multiple-baseline across subjects design. Results from nine study participants were examined.

Results: Data demonstrates that a detectable decrease in anxiety levels can result from participation in self-directed mindfulness program as short as four weeks. Results regarding mindfulness and empathy levels were less conclusive. A specific relationship between empathy and mindfulness cannot be determined from this study.

Conclusions: Because previous studies have demonstrated a persistence of skills, practice, and benefits acquired through mindfulness …

Cholesterol: A Possible Mediator Of Apoe Risk For Alzheimer's Disease, Michelle Marie Dunk

Theses and Dissertations

Despite the well-established link between the ε4 allele of the apolipoprotein E (APOE) gene and AD, the underlying mechanisms that mediate the risk of developing AD remain elusive. Literature on the role of APOE in cholesterol metabolism suggests that blood cholesterol may be a key factor in the development of AD pathology. Current study aims to investigate whether total cholesterol differs by APOE status and whether this relationship is predictive of AD diagnosis and its biomarkers. Baseline total cholesterol, APOE status, AD diagnosis, global cognitive function, brain Aβ, plasma Aβ40 and Aβ42, and cerebrospinal fluid (CSF) Aβ, tau, and phosphorylated …

Reexamining Object-Based Visual Attention: Understanding The Nature Of Direction-Dependent Attention Shifts, Adam Joseph Barnas

Theses and Dissertations

Attentional selection is a process by which relevant sensory stimuli are afforded enhanced priority for processing over and above irrelevant sensory stimuli. Object-based attention is a form of selection that leads to preferential processing of visual information contained in/on an attended object versus an unattended object. Observers typically exhibit enhanced performance to a target at an invalidly cued same object location compared to a different-object location, which results in a same object advantage as measured by the response time (RT) difference between these two target locations. A growing body of research has shown that object-based effects are small, inconsistent, and …

Visual Illusion Susceptibility In Dogs Using The Ebbinghaus-Titchener Illusion In A Spontaneous Choice Task, Nicolette Becker

Theses and Dissertations

In recent years, dogs have been a popular test subject when studying visual illusion susceptibility. Multiple studies have investigated whether animals perceive illusions as humans do, but few studies have evaluated dogs’ perception of illusory stimuli. In this thesis, we studied if dogs are visually susceptible to the Ebbinghaus-Titchener illusion when presented in a spontaneous choice task. Subjects were presented two visual images on a board, which had bologna pieces embedded in the stimuli. In control trials, two different sized bologna pieces were placed in the center of the images. In these control conditions, dogs were expected to choose the …

Behavioral Hypervigilance In A Normative Population, Karly Weinreb

Theses and Dissertations

Hypervigilance is conceptualized as a symptom of trauma-related disorders, however it can also occur in a normative population. To distinguish normative hypervigilance from trauma-related hypervigilance, 372 participants (123 trauma-exposed and 249 non-trauma-exposed) completed a questionnaire assessing hypervigilance in contexts. Trauma-exposed participants reported greater levels of hypervigilance in 3 contexts.

Exploring Innovation And Behavioral Flexibility In African Lions (Panthera Leo) And Snow Leopards (Panthera Uncia), Victoria L. O'Connor

Theses and Dissertations

Intelligence may have evolved to help animals problem-solve in their physical and/or social environments, which enables them to cope with changes in their environments. Humans can reduce wildlife conflict by understanding how species that face harsh environments assess a situation and alter their behavior. Tests for cognitive behavior aim to formulate clear behavioral criteria for inferring an animal’s mental processes. We designed a custom multi-access puzzle box (MAB) to present a simple and effective behavioral test for exploring innovation in two species, African lions (Panthera leo) and snow leopards (Panthera uncia). Despite being vastly underrepresented in …

Evaluation Of Cognitive Control Using Non-Gaussian Reaction Time Distributions In Fractionated Executive Function Tasks, Dmitriy Kazakov

Theses and Dissertations

The present study seeks to further investigate and refine the three-factor model of executive function (EF; Inhibition, Shifting, and Monitoring/Updating) known as the unity/diversity framework (Miyake et al., 2000). Past work in this area utilized “power” tasks that prioritize accuracy and difficulty, but real-world problem-solving incentivizes quick and efficient solutions. Ten computerized reaction time (RT) tasks: four elementary cognitive tasks (ECTs; Jensen, 1987; Santos, 2016) with progressively increasing task demands and six EF tasks. The ratio scale of RT necessitated the use of non-Gaussian statistics to better describe distribution shape, while diffusion modeling (DM; Ratcliff, 1978) was used to interpret …

When Children Hurt You: Examining The Experiences Of Clinicians Who Work With Aggressive Young Children, Melisa Madsen

Theses and Dissertations

This grounded theory qualitative research study examined the experiences of mental health staff who work with aggressive young children under the age of 9. Through the use of semi-structured interviews, participants were asked about individual and organizational aspects that affect the care they provide to young children and their decision to stay with the organization. 14 mental health professionals from five different intensive outpatient programs for youth with behavioral concerns were interviewed. Data were analyzed using Strauss and Corbin’s (1998) three-step data analysis process of open coding, axial coding, and selective coding. In answer to the question “What experiences do …

Intersecting Realities: A Qualitative Study Exploring The Experiences Of Stress And Coping Among Transgender Latinx Immigrants, Silvia P. Salas

Theses and Dissertations

Research on Trans immigrant communities of Latinx descent is underdeveloped, with even less emphasis on how this community experiences and copes with the stressors associated with their membership in multiple oppressed social groups (e.g., ethnicity, gender identity, and immigration status). Nativism, ethnocentrism, and cissexism all impact Trans Latinx immigrants, heightening their risk of being targets of community violence, hate crimes, and discrimination associated with their ethnicity, gender identity, and immigration status. These stressors and violence may be experienced by this community from within and outside their respective communities (e.g., Trans Community, Latinx Community, and Broader U.S. Community). The few available …

Cannabis-Using Youth Demonstrated Blunted Rostral Anterior Cingulate Cortex Activation, But Normal Functional Connectivity, During An Emotional Go/No-Go Task, Kristin Elizabeth Maple

Theses and Dissertations

Cannabis use has been associated with deficits in self-regulation, including inhibitory control. Cannabis users have previously exhibited both structural and functional deficits in the rostral anterior cingulate cortex (rACC), a region involved in self-regulation of emotional response and inhibitory control. The present study aimed to examine whether abstinent cannabis users demonstrated abnormal functional activation and connectivity of the bilateral rACC during an emotional inhibitory processing task, and whether gender moderated these relationships. The study also aimed to examine whether bilateral rACC activation and connectivity in cannabis users was related to perceived stress. It was hypothesized that cannabis users would exhibit …

White Matter Integrity In Individuals At-Risk For Ptsd Development: A Longitudinal Investigation, Carissa Weis

Theses and Dissertations

Trauma exposure is prevalent and while most are resilient, some go on to develop post-traumatic stress disorder (PTSD)—an anxiety-related disorder that results from traumatic experience. The brain changes that result from traumatic experience and PTSD are not well understood. Further, little is known about what distinguishes those who are resilient after trauma from those at risk for developing PTSD. Previous work indicates white matter integrity may be a useful biomarker in predicting PTSD and researchers have found changes in the integrity of three white matter tracts—the cingulum bundle, corpus callosum (CC), and uncinate fasciculus (UF)—in the aftermath of trauma. However, …

White Matter Integrity In Individuals At-Risk For Ptsd Development: A Longitudinal Investigation, Carissa Weis

Theses and Dissertations

Trauma exposure is prevalent and while most are resilient, some go on to develop post-traumatic stress disorder (PTSD)—an anxiety-related disorder that results from traumatic experience. The brain changes that result from traumatic experience and PTSD are not well understood. Further, little is known about what distinguishes those who are resilient after trauma from those at risk for developing PTSD. Previous work indicates white matter integrity may be a useful biomarker in predicting PTSD and researchers have found changes in the integrity of three white matter tracts—the cingulum bundle, corpus callosum (CC), and uncinate fasciculus (UF)—in the aftermath of trauma. However, …

Object Permanence In Asian Elephants (Elephas Maximus), Dalia Miller

Theses and Dissertations

This study investigated object permanence in Asian elephants (Elephas maximus) using visible and invisible test paradigms with single and multiple object displacements. Elephants were predicted to succeed, demonstrating a capacity for object permanence and for using vision in a cognitive task. Study outcomes supported these predictions.

Visual And Verbal Serial List Learning In Patients With Statistically-Determined Mild Cognitive Impairment, Victor J. Wasserman

Theses and Dissertations

Objective: To compare verbal versus visual serial list learning test performance in mild cognitive impairment (MCI) and assess relationships between serial list learning and hippocampal volume. Methods: Patients were diagnosed with non-MCI, amnestic MCI (aMCI), and combined mixed/dysexecutive MCI (mixed/dysMCI). Outcome measures included immediate/delay free recall, and delay recognition performance from the 12-word Philadelphia Verbal Learning Test (PrVLT) and the Brief Visuospatial Memory Test-Revised (BVMT-R). Lateral hippocampal volumes were obtained. Results: Non-MCI patients scored better than other groups on P(r)VLT immediate/delay free recall. aMCI patients scored lower than other groups on P(r)VLT delay recognition. Non-MCI patients were …

Qualitative Exploration Of Factors Impacting Adjustment In Women Survivors Of Military Sexual Trauma, Rae Anne Marie Frey

Theses and Dissertations

This project draws from posttraumatic growth and resilience theories, as well as Critical Discourse Analysis and utilizes multiple case study to offer an in-depth examination of the military sexual assault experiences across eleven cases of women who served in the Marine Corps, Navy, Army, and Air Force from the 1960s to the present-day military. The cross-case analysis revealed a three-stage model of adjustment including adjustment to the military culture, surviving the sexual assault, and surviving the fallout, as well as the internal characteristics and behaviors women relied on to navigate these stages. While the data yielded pockets of strengths within …