Psychology Commons^™

Adverse Childhood Experiences, Cognitive Ability, And Psychosocial Functioning, Maleia Mathis

Loma Linda University Electronic Theses, Dissertations & Projects

Nearly half of all children in the U.S. have experienced at least one Adverse Childhood Experience (ACE) and 23 percent have experienced at least two ACEs. Cumulative exposure to ACEs places children at increased risk for poor psychosocial functioning in childhood and cognitive ability may mediate this relationship. The study aims were to assess the predictive ability of cumulative exposure to ACEs on poor psychosocial functioning and to determine if verbal and non-verbal cognitive ability mediated this association. Parent-child dyads from a low-income pediatric clinic were assessed. Parents were given a parent report measure to assess the child’s psychosocial functioning …

The Formulation Of A Rbans Effort Supplement, Joshua Seth Goldberg

Loma Linda University Electronic Theses, Dissertations & Projects

Assessment of effort detection is an essential component of a neuropsychological evaluation to ensure results of testing are valid indicators of an individual’s true level of cognitive functioning. Effort detection in the initial screening process provides neuropsychologists information regarding patients’ test engagement prior to administering longer testing batteries. Two effort measures are embedded in the Repeatable Battery for Assessment of Neuropsychological Status (RBANS), a neuropsychological screening assessment, but both have demonstrated elevated false positive rates for classifying individuals with memory impairment as those putting forth poor effort. These embedded measures rely on cut-off scores on digit span and memory subtests. …

Fatalism And Pain Experience In Hispanic And Non-Hispanic White Patients With Chronic Pain, Esmeralda Ibette Nuñez

Loma Linda University Electronic Theses, Dissertations & Projects

The purpose of this dissertation was to explore fatalistic beliefs about pain among Hispanic and Non-Hispanic White (NHW) patients with chronic pain in order to assess the assertion that fatalism is a uniquely important cultural determinant of pain experience among Hispanics. Hypotheses were that across both Hispanic and NHW patients, lower socioeconomic status and lack of access to a usual source of healthcare for chronic pain, rather than ethnicity, would relate to greater pain fatalism. Secondly, it was hypothesized that greater pain fatalism would relate to higher pain severity and pain interference for both groups. Pearson product-moment correlations were used …

The Relationship Between Cognitive Function And Activities Of Daily Living, Pamela V. Lorenzo

Loma Linda University Electronic Theses, Dissertations & Projects

Dementia is a cognitive disorder that can be caused by several underlying diseases, including Alzheimer’s disease and vascular disease. Dementia is not only characterized by declines in cognition, but is also associated with declines in instrumental and basic activities of daily living (ADLs). Cognitive decline generally begins prior to any declines in ADLs, and as cognitive impairments progress, the ability to independently perform ADLs begins to decline as well. Accurate assessment of ADL functioning, though critical to the diagnosis of dementia, can be difficult with the use of self-report measures. One objective measure of ADLs is the Functional Independence Measure …

Body Dissatisfaction, Perceived Smoking Consequences, And Weight Control Smoking, Samantha N. Martinez

Loma Linda University Electronic Theses, Dissertations & Projects

Eating disorders are a significant public health concern affecting approximately 8 million individuals in the United States, with women suffering at disproportionate rates. Eating disorders have been associated with a variety of negative health behaviors, including smoking. Despite an overall decrease in smoking prevalence, smoking rates remain high among females with eating disorders. The current study explored the role that perceived consequences of smoking related to appetite/weight control plays in moderating the relationship between body dissatisfaction, which is a risk factor for the development of an eating disorder, and weight control smoking, controlling for the effects of race/ethnicity smoking status, …

A Vision-Based Model Of Crowd Navigation, Gregory C. Dachner

Link Foundation Modeling, Simulation and Training Fellowship Reports

Humans navigate crowds daily. This can range from quick interactions between pedestrians on the sidewalk to jostling through a busy train station. Research in fields diverse as computer graphics, physics, evacuation planning, and mathematical biology have simulated emergent collective behavior in flocks, schools, and crowds (Couzin et al., 2002; Helbing & Molnár, 1995; Reynolds, 1987; Vicsek & Zafeiris, 2012). However, few of these models are built from experimental evidence about the visual information that governs human pedestrian behaviors in naturalistic environments. This project, funded by the Link Foundation, empirically studied and computationally modeled how individuals in a crowd use visual …

Visual Entrainment Of Perception-Related Neural Oscillations As A Mechanism For Maintaining Rhythmic Temporal Expectations Across A Wide Range Of Frequencies, Michael James Gray

Dissertations, Theses, and Capstone Projects

Visual sensitivity fluctuates rhythmically, in-synch with ongoing, EEG-recorded neural oscillations across a wide range of frequencies (~1-25hz). Some recent work has suggested that these perception-related neural oscillations can be entrained by rhythmic visual stimulation. Evidence is also emerging that the entrainment of ongoing oscillations in visual and auditory cortices is involved in rhythmic temporal expectations. In the introduction chapter, I attempt to bridge these bodies of literature and hypothesize that rhythmic visual stimuli automatically entrain ongoing, perception-related neural oscillations and that this mechanism supports the maintenance of rhythmic temporal expectations. Chapters 2 and 3 address this hypothesis from different angles. …

The Impact Of Racial Microaggressions And Major Discriminatory Events On Mental Health, Florence Lui

Dissertations, Theses, and Capstone Projects

The current study, a secondary data analysis, sought to determine the number and nature of latent groups for experiences of spectrum racial discrimination (i.e., both major and microaggressive racial discrimination) in a sample of emerging adults from a people of color (POC)-majority public university setting in the United States, and to understand the role of socio-demographic variables in defining each group. In addition, the study aimed to ascertain the extent to which endorsing spectrum racial discrimination experiences predicted anxiety and/or depression above the effects of general, non-race-related stress. Finally, the analyses gauged the mediating and/or moderating role of coping in …

Dermatoglyphic Measures In Relation To Depressive Symptoms Among Non-Clinical Adolescents And Young Adults, Yosefa A. Modiano

Dissertations, Theses, and Capstone Projects

Depressive disorders are highly prevalent and can be devastating. Increasingly, depressive symptomatology is understood from a dimensional perspective such that non- or sub-clinical presentations may share a similar etiology. Depression etiology is believed to include genetic and environmental factors that may contribute to underlying vulnerability (diathesis) by way of neurodevelopment. Birth cohort studies have provided empirical evidence of the relationship between prenatal insult and later experience of adverse outcomes, including increased risk for depressive disorders. Retrospective investigation of the possible influence of prenatal disturbance on later experience of depressive symptoms has methodological limitations. Dermatoglyphic measurements offer a more methodologically viable …

Assessment Of Third Wave Therapy Assumptions About The Relation Between Emotional Schemas And Psychoemotional Functioning, Emily Rachel Edwards

Dissertations, Theses, and Capstone Projects

Recent advancements in emotion theory propose that emotional schemas – individualized conceptualizations and beliefs about emotions – serve a fundamental function in guiding psychoemotional processes. These advancements have progressed alongside the development of third-wave therapies, which presume emotional schemas to be deeply involved in perpetuating psychological distress and emotional dysfunction. To critically assess the validity of this presumption, the current research proposed and evaluated an integrative model of psychoemotional functioning.

Two studies were completed using a combination of behavioral, performance-based, and self-report measures of emotional schemas and psychoemotional functioning. Though further research is needed, results suggest the integrated model of …

Examining Relations Between Executive Functions And Decoding: A Meta-Analytic Investigation, Teresa Ober

Dissertations, Theses, and Capstone Projects

Introduction: The Simple View of Reading (SVR) is one of several established models of reading that present decoding and linguistic comprehension as critical skills in the development of reading competencies. Previous research has highlighted the connection between reading comprehension and cognitive skills, including those which fall under the term of executive functions (EF; for a review, see Follmer, 2018). EF may also be critical in the development of decoding. According to the dual route model of word recognition (Coltheart, 2006), decoding involves two separable processes; the phonological route, involving encoding and retrieval of letter-sound associations (also called phoneme-to-grapheme correspondence rules), …

The Development Of Face Morphing Task To Assess Self Other Differentiation, Esen Karan

Dissertations, Theses, and Capstone Projects

Self-Other Differentiation (SOD) refers to a developmental process of acquiring a consolidated, integrated, and individuated sense of self. SOD develops at a) perceptual (e.g., facial perception) and b) representational (e.g., traits, mental states, and beliefs) levels. Impairments in representational SOD (R-SOD) are associated with many forms of psychopathology, particularly borderline personality disorder (BPD) and narcissistic personality disorder (NPD). Few studies to date have examined the perceptual aspects of SOD (P-SOD), which are hypothesized to develop from infancy onwards in tandem and in interaction with R-SOD. Given that the human face is one of the key characteristics that humans use to …

Memory-Guided Selective Attention: An Instance Theory Of Automatic Attentional Control, Nicholaus Paul Brosowsky

Dissertations, Theses, and Capstone Projects

Cognitive control enables flexible goal-directed behavior via attention and action selection processes that prioritize goal-relevant over irrelevant information. These processes allow us to behave flexibly in the face of contradicting or ambiguous information and update behavior in response to the changing environment. Furthermore, they are thought to be in direct opposition to learned, automatic processing in that they enable us to disregard learned behaviors when they are inconsistent with our current goals. The strict dichotomy between stimulus-driven and goal-driven influences, however, has downplayed the role of memory in guiding attention. The position forwarded in this thesis is that a memory-based …

Does Ethnic Identity, In-Group Preference, And Acculturation Protect Latinas With A History Of Interpersonal Trauma From Developing Symptoms Of Ptsd?, Evelyn M. Ramirez

Dissertations, Theses, and Capstone Projects

Previous research suggests ethnic identity, a sense of belonging to a particular cultural group, may be protective against symptoms of post-traumatic stress disorder (PTSD). However, the role of ethnic identity, in-group preference (i.e., an individual’s preference for interactions with members of their own ethnic group) and acculturation (i.e., the level of comfort with the mainstream culture) have not been investigated as protective factors for Latinas with a history of interpersonal and sexual trauma. In this study, ethnic identity, in-group preference and acculturation were assessed via self-report on the Scale of Ethnic Experience in two samples of undergraduate Latina and non-Latina …

Examining The Use Of Hebephilia And Paraphilia Non-Consent In Sexually Violent Predator (Svp) Evaluations, Nicole Graham

Dissertations, Theses, and Capstone Projects

Sexually violent predator (SVP) legislation requires, in part, that an individual has a mental abnormality which causes difficulty in controlling sexual behavior. Previous research has found paraphilia not otherwise specified (NOS) to be one of the most prevalent diagnoses proffered in SVP evaluations. Since these studies, however, the Diagnostic and Statistical Manual (DSM) has updated the paraphilia NOS diagnosis in two ways. First, this diagnosis has been divided into two new diagnoses—other specified paraphilic disorder (OSPD) and unspecified paraphilic disorder. Second, OSPD requires an added specifier to indicate the individual’s source of sexual arousal. To date, no study has systematically …

Examining The Effects Of A Multi-Component Neurocognitive Intervention For School-Aged Children With Co-Occurring Adhd And Reading Difficulties, Alyssa L. Chimiklis

Dissertations, Theses, and Capstone Projects

Objective: Children with attention deficit hyperactivity disorder (ADHD) frequently exhibit impairments in neurocognitive pathways (i.e., deficits in sustained attention, response inhibition, processing speed, working memory, and cognitive flexibility). There is also extensive support indicating that youth with co-occurring ADHD and reading difficulties share pathological pathways and exhibit deficits in executive functions. Neither behavioral nor pharmacological interventions have been able to fully address executive dysfunction and/or reading deficits in this population. Computerized neurocognitive training interventions have been explored as a treatment alternative for youth with pure ADHD and have demonstrated some merit. Conceptually, computerized neurocognitive training programs that target overlapping pathways …

The Use Of Infographics To Assess Context Processing, Beliz Hazan

Dissertations, Theses, and Capstone Projects

Among high-order cognitive functions is the use of context to enhance comprehension of language or visual scenes. Although use of context is known to be impaired in certain clinical populations (e.g., schizophrenia), no existing test adequately assesses this construct. To fill this gap, we developed and attempted to validate a test of context use that employed Infographics (information graphics), which requires the use of context to interpret visual displays. The primary hypothesis was that interpreting Infographics would be sensitive to context processing. We further hypothesized that different levels of cognitive processing (requiring basic perceptual, real-world application, or verbal reasoning), as …

Neural Correlates Of Automatic Emotional Processing And Emotion Regulation In Empathy And Psychopathy-Related Coldheartedness, Danielle Difilipo

Dissertations, Theses, and Capstone Projects

Psychopathy is a personality disorder that is defined, in part, by a lack of empathy. Psychopathy-related empathic deficits have been associated with atypical behavioral and neural responses to emotional facial expressions. Although the mirror neuron system (MNS) has been implicated in empathy, very few studies have examined the role of MNS functioning as it pertains to empathy impairments in psychopathy. Moreover, there is very little empirical research regarding emotion regulation in psychopathy, and specifically whether emotional responses can be intentionally upregulated. The present study sought to clarify whether the MNS is functionally intact in adults with subclinical psychopathic traits, particularly …

Towards A Pedagogy Of Life Purposes, Manny Lopez

Dissertations, Theses, and Capstone Projects

College students who understand how the courses that they are enrolled in connect with their broader life goals are more likely to apply an approach of task perseverance with academic endeavors. Yet, nearly three million adolescent community college students in the United States may not have developed clear purposes in life. Relatedly, overtime the lack of lucid life purposes contributes to maladaptive behavior.

This dissertation is a compilation of three interrelated studies that took place in two public community colleges in the City University of New York. Guided by authentic inquiry and framed by sociocultural theory, central to each study …

Perceptions Of Sexual Violence: An Investigation Of Sexual Harassment, Sexual Coercion, And Sexting, Jennifer J. Mcmahon

Dissertations, Theses, and Capstone Projects

Perpetration of sexual violence is a serious concern in the US, with research indicating that a substantial portion of the population has experienced some type of sexual victimization. There is sparse research that examines perceptions and judgments of sexually inappropriate behaviors, and existing research does not take into account the impact of individual differences and contextual factors. This study examined whether individuals recognize different forms of sexual harassment, sexual coercion, and sexting as inappropriate, and how these perceptions are affected by sex, age, and relationship status. A mixed sample of undergraduate students and adults within the community completed an online …

Murine Genetic Variance In Sugar And Fat-Conditioned Flavor Preferences: Roles Of Dopamine, Opioid And Nmda Receptors And Nutritive Sensing, Tamar T. Kraft

Dissertations, Theses, and Capstone Projects

As obesity and diabetes have emerged as a severe public health crisis, understanding the mechanisms underlying the consumption of sugars and fats has become a topic of vigorous study. From a biological standpoint, genetic dispositions, neurochemical and hormonal influences, and predetermined orosensory and postingestive signals that modulate the hunger and satiety process may govern physiological aspects of the obesity puzzle. In addition to an innate appetite and attraction for simple carbohydrates and fats, learning plays an important role in modulating preferences for sugar- and fat-rich foods in rodents, including inbred mouse strains. Marked genetic variance has been observed among murine …

Clinical Characteristics And Neuroanatomical Predictors Of Acute Antidepressant Outcome For Patients With Comorbid Depression And Mild Cognitive Impairment, Jeffrey N. Motter

Dissertations, Theses, and Capstone Projects

Background: Older adults presenting with both a depressive disorder (DEP) and cognitive impairment (CI) represent a unique, understudied population. The classification of cognitive impairment severity continues to be debated though it has recently been subtyped into late (LMCI) versus early (EMCI) stages. Previous studies have found associations between treatment outcome and both cortical thickness and white matter hyperintensities (WMH), though report inconsistent directionality and affected regions. In this study, we examined baseline clinical characteristics and neuroanatomical features as prognostic indicators for older adults with comorbid DEP and CI participating in an open antidepressant trial. EMCI is hypothesized to have greater …

The Interaction Of Attention And Memory On The Reorienting Negativity, John C. Moses

Dissertations, Theses, and Capstone Projects

The three-stage model of distraction asserts that when we are presented with salient but task-irrelevant information, our sensory systems first detect the distracting stimulus by way of sensory memory buffers, which is indicated electrophysiologically by the mismatch negativity (MMN). Following detection, attentional resources are involuntarily allocated towards the processing of the distraction, as represented by the P3a. Finally, attentional resources are shifted away from the distracting stimulus and returned to the task-relevant information, as indicated by the reorienting negativity (RON). A great deal of research has focused on this last step in the model, largely centering around defining the mechanisms …

Diet, Inflammation, Gut Microbiome, And Mental Health, Ashley R. Polokowski

Dissertations, Theses, and Capstone Projects

Omega-3 fatty acids (ω-3 FAs) are an essential fatty acid necessary for healthy development in mammals. They possess anti-inflammatory properties and have more recently been shown to impact gut microbiota, both factors hypothesized to be associated with depression and anxiety. Thus, empirical efforts have begun to examine the benefit of ω-3 FAs as a treatment option for various psychological disorders. Although there is evidence that ω-3 FAs have favorable outcomes on depressive symptoms, the relationship between ω-3 FAs and anxiety and the pathways by which ω-3 FAs produce beneficial health effects are poorly understood. Both inflammation and the gut microbiome …

Some Non-Human Languages Of Thought, Nicolas J. Porot

Dissertations, Theses, and Capstone Projects

What might we learn if we take seriously the possibility of non-human Languages of Thought (LoT)? A LoT is a combinatorial set of mental representations. And, since mental representations and rules of combination vary in kind, there are many possible LoTs. Simple LoTs might lack familiar features of the putative human LoT, such as object representations, recursively defined rules of combination, sentential connectives, or predicate-argument structure. The most familiar arguments for the existence of LoTs, such as those from productivity, systematicity, concept learning, and perceptual computation, all fail when applied to non-human animals. But recent empirical evidence motivates attributing LoTs …

The Development And Validation Of An Ideal Point Measure Of Work Engagement, Michael M. Denunzio

Dissertations, Theses, and Capstone Projects

Work engagement has been an extremely popular area of research and practice over the past two decades. However, organizational scholars have yet to thoughtfully consider alternative and potentially more appropriate ways of modeling how individuals report their work engagement and, relatedly, measuring the construct. This dissertation seeks to establish and support the position that (1) individuals use an ideal point (vs. dominance) process to identify how engaged they are and respond to work engagement items, and (2) an ideal point framework can be used to develop a construct valid work engagement scale with good psychometric properties. Since no such scale …

Emotion Processing Deficits In Psychopathy: Does Cueing To Relevant Facial Features Increase Cognitive And Emotional Empathy?, Shawn E. Fagan

Dissertations, Theses, and Capstone Projects

Psychopathy is a multifaceted disorder characterized by a lack of cognitive and emotional empathy. The traditional model of psychopathy divides the disorder into two factors: Factor 1 consists of the interpersonal and affective traits of psychopathy while Factor 2 measures antisocial behaviors and lifestyle choices. The attention-to-the-eyes hypothesis argues that psychopathic individuals have impaired emotion recognition (specifically for fear) due to deficits in orienting attention to salient facial features like the eyes. Psychopathic individuals also display blunted autonomic responding to emotional stimuli, though whether this is due to attention-orienting deficits remains to be clarified. The present project investigated whether empathy-related …

Facial Identification: A Meta-Analysis Of 50 Years Of Research, Jungwon Lee

Dissertations, Theses, and Capstone Projects

The current research built a comprehensive database that includes over 1,000 facial identification studies published in the last five decades. Using this database, two research questions, which are crucial for better understanding facial identification performance, were examined. The questions are 1) how variables influence facial identification performance, and 2) whether findings from facial identification research can be generalized across study types. Topically focused effect-size analyses and study characteristic analyses demonstrated that, among the 38 variables investigated in the current meta-analysis, stimulus alteration and participants’ age produced larger effects on identification performance than other variables. Results from aggregated effect-size analyses supported …

The Role Of The Direct And Indirect Basal Ganglia Pathways In The Learning, Performance, And Goal-Directed Control Of Action Sequences, Eric Garr

Dissertations, Theses, and Capstone Projects

Animals engage in intricately woven action sequences that are constructed from trial-and-error learning, but the mechanisms by which the brain links together individual actions which are later recalled as fluid chains of behavior are not fully understood. The aim of this dissertation is to investigate the learning and goal-directed control of action sequences in rats. Experiment 1 addresses a question that comes out of a reinforcement learning model of action sequencing: how does the extent of training change how the performance of an action sequence is impacted by reward devaluation. The data show that action sequences remain goal-directed overall regardless …

Subjective Experience Of Autonomy And Psychological Well-Being: A Cross-Cultural Study With Korean American And European American Young Adults, Esther J. Lee

Dissertations, Theses, and Capstone Projects

This study aimed to explore whether parenting beliefs and practices that might promote academic or professional achievements also undermine aspects of psychological well-being. Specifically, the study focused on the relationship between the experience of subjective autonomy and psychological well-being measured in terms of self-esteem, flourishing, and life satisfaction. The sample consisted of 86 second-generation Korean Americans (KAs) and 99 European Americans (EAs) ages 25-35. Perceived parental autonomy support (versus psychological control) and perceived parental modernity (versus traditionalism) were also examined for group differences and associations with psychological well-being. As a group, KAs perceived greater parental psychological control and parental traditionalism …