Psychology Commons^™

An Integration-To-Bound Model Of Decision-Making That Accounts For The Spectral Properties Of Neural Data, Ramón Guevara Erra, Marco Arbotto, Aaron Schurger

Psychology Faculty Articles and Research

Integration-to-bound models are among the most widely used models of perceptual decision-making due to their simplicity and power in accounting for behavioral and neurophysiological data. They involve temporal integration over an input signal (“evidence”) plus Gaussian white noise. However, brain data shows that noise in the brain is long-term correlated, with a spectral density of the form 1/fα (with typically 1 < α < 2), also known as pink noise or ‘1/f’ noise. Surprisingly, the adequacy of the spectral properties of drift-diffusion models to electrophysiological data has received little attention in the literature. Here we propose a model of accumulation of evidence for decision-making that takes into consideration the spectral properties of brain signals. We develop a generalization of the leaky stochastic accumulator model using a Langevin equation whose non-linear noise term allows for varying levels of autocorrelation in the time course of the decision variable. We derive this equation directly from magnetoencephalographic data recorded while subjects performed a spontaneous movement initiation task. We then propose a nonlinear model of accumulation of evidence that accounts for the ‘1/f’ spectral properties of brain signals, and the observed variability in the power spectral properties of brain signals. Furthermore, our model outperforms the standard drift-diffusion model at approximating the empirical waiting time distribution.

Becoming The Good Shepherds, Eze Paez

Animal Sentience

It is very important that we clarify what we owe to nonhuman animals. To that end, we need a better understanding of animal cognition and emotion. Marino & Merskin’s target article is a welcome contribution to this project. Sheep, like most other animals, are sentient beings with interests of their own. It is wrong to discriminate against them based on species-membership or cognitive sophistication. We are morally required not to harm them, and to help them have the best possible lives, just as we would be in the case of human beings with similar interests. We must become the good …

The Psychological Implications Of Lyme Disease, Joseph Trunzo

Applied Psychology Department Faculty Journal Articles

No abstract provided.

The Music Industry Has A Mental Health Problem, Manny Manriquez

Backstage Pass

No abstract provided.

Avoidant Coping Mediates The Relationship Between Socioeconomic Status And Stress, Amanda Schar, Julia Fraterrigo, Emma Slattery, Alyssa Rogalski, Kathryn Steininger

Celebration of Learning

The current study will examine how socioeconomic status affects perceived social support and coping strategies and how these two factors affect stress levels and post traumatic growth. This could lead to developments in how to better educate people on the most effective ways to deal with stress and providing community resources to populations particularly vulnerable to stress. Perceived social support and coping have been shown to affect post-traumatic growth and stress. Differences in coping strategies and availability of support may be partly driven by an individual's socioeconomic status. Perceived social support is defined as the extent to which someone believes …

An Examination Of Student Performance In Pre-Requisite Coursework And Upper Division Nursing Coursework, Jennifer L. Brown, Cheryl M. Smith

Journal of Nursing & Interprofessional Leadership in Quality & Safety

Admission and retention of qualified nursing students are essential in meeting the demands of a rapidly changing health care environment and nursing shortage. The purpose of this exploratory correlational study was to determine the relationship between student performance in quantitative pre-requisite coursework and student performance in upper division nursing coursework in order to identify students at-risk for attrition. A series of descriptive and correlational analyses were conducted using pre-existing institutional data. A moderate relationship existed among the chemistry II and first-year upper division nursing courses (r = .21 to r = .40). These results suggest that prerequisite chemistry course …

How Music Therapy Effects The Traumatized Brain: Neurorehabilitation For Posttraumatic Stress Disorder Through Music Therapy, Jordan Winter Payne

Honors Projects

This review discusses the neurological components of posttraumatic stress disorder (PTSD) and how both structures and processes in the brain are altered in individuals with the disorder, specifically the neural network that includes the prefrontal cortex, the hippocampus, and the amygdala. This impacts awareness and responsiveness to stimuli. After examining these aspects, invasive and non-invasive treatment approaches are examined, with a specific emphasis on the treatment approach of music therapy. Musical stimuli are processed in many areas of the brain, so it has therapeutic potential for modulating neurological changes. Music therapy applies music clinically to address a variety of goals …

Serotonin And Motherhood: From Molecules To Mood, Jodi L. Pawluski, Ming Li, Joseph S. Lonstein

Department of Psychology: Faculty Publications

Emerging research points to a valuable role of the monoamine neurotransmitter, serotonin, in the display of maternal behaviors and reproduction-associated plasticity in the maternal brain. Serotonin is also implicated in the pathophysiology of numerous affective disorders and likely plays an important role in the pathophysiology of maternal mental illness. Therefore, the main goals of this review are to detail: 1) how the serotonin system of the female brain changes across pregnancy and postpartum; 2) the role of the central serotonergic system in maternal caregiving and maternal aggression; and 3) how the serotonin system and selective serotonin reuptake inhibitor medications (SSRIs) …

Family Linked Workplace Resources And Contextual Factors As Important Predictors Of Job And Individual Well-Being For Employees And Families, Jacquelyn Marie Brady

Dissertations and Theses

The inextricable ties between work and family have been extensively studied, however, with both societal and organizational change there is a continuing need for organizational research to elucidate the effects work can have on family, individual, and job well-being. Through three studies, this body of work demonstrates the role of supervisors, psychological contextual factors, and workplace work-family resources for improving employee and spouse family well-being and employee psychological and job well-being. This dissertation drew upon data from the Study for Employment Retention of Veterans (SERVe) and the Work-family Health Network (WFHN). Study 1 investigated the link between a supportive supervisor …

Cognitive Intra-Individual Variability: The Effects Of Affect In A Healthy Young Adult Sample, Tovah M.D. Cowan

LSU Master's Theses

Cognition is foundational to our experience of the world, but also to how psychologists understand dysfunctions. Cognitive impairment is a feature of a variety of mental disorders, but traditional assessment measures have key limitations in prediction and classification. A proposed alternative is cognitive intraindividual variability (cIIV), which is suggested to measure cognitive control or neural inefficiencies, fluctuating within a task, or over short periods of time. cIIV has been shown to be more sensitive in classification for a variety of conditions than overall performance, including in affective disorders. Further, some research suggests that cIIV is related to self-report cognitive abilities, …

Modeling Melodic Dictation, David John Baker

LSU Doctoral Dissertations

Melodic dictation is a cognitively demanding process that requires students to hear a melody, then without any access to an external reference, transcribe the melody within a limited time frame. Despite its ubiquity in curricula within School of Music settings, exactly how an individual learns a melody is not well understood. This dissertation aims to fill the gap in the literature between aural skills practitioners and music psychologists in order to reach conclusions that can be applied systematically in pedagogical contexts. In order to do this, I synthesize literature from music theory, music psychology, and music education in order to …

The Impact Of Trauma Experience, Adverse Early Circumstances And Unit Cohesion On Posttraumatic Growth In Active Duty Service Members, John Charleson

Clinical Psychology Dissertations

Active duty service members are regularly exposed to highly traumatic events. Commonly, individuals exposed to trauma experience positive changes as a result of the trauma they experienced. The likelihood of these changes occurring can be positively or negatively influenced by characteristics of the event itself, the biopsychosocial history of the service member, and the availability of internal and external coping resources. The present study aimed to evaluate how threat to life during a traumatic event influences posttraumatic growth using a sample of active duty service members (N = 818). Participant’s ranged in age from 19 to 54 (M …

Development And Validation Of The Workplace Mental Illness Stigma Scale (W-Miss), Nicholas Anthony Smith

Dissertations and Theses

Although 1 in 5 Americans will experience a mental illness at some point, each year people with mental illnesses continue to face high levels of stigmatization and discrimination at work. Recognizing this, many organizational researchers and practitioners have sought to improve workplaces for employees with mental illness through a variety of organizational interventions. Unfortunately, few interventions are thoroughly evaluated. One barrier to evaluating such interventions is the lack of a theoretically meaningful measure of workplace mental illness stigma. In this dissertation, I proposed to develop and evaluate such a measure (the W-MISS) based on Jones, Farina, Hastorf, Markus, Miller, and …

Don’T Be Afraid To Catch Feels: Facilitating A Healthy Relationship Series For Students, Laura Luciano, Julie Millisky

Title IX Summit

This is a two-part workshop providing participants with the tools to replicate a four-part healthy relationship series on their campus. Presenters will share their experience creating and facilitating this series for students. Participants will engage in an activity from each of the four workshops. Presenters will also share information about effectiveness based on evaluation and future plans to create additional sessions. Don’t be Afraid to Catch Feels was created to address intimate partner violence by using a primary prevention approach. This series was designed to provide students with a space to consider their own choices when engaging in emotional, sexual, …

Cultural Differences In Perception Of Heroes: Greece, India, And The Usa, Smaragda P. Spyrou, Alexa M. Bertrand, Scott T. Allison

Arts & Sciences Student Symposium

Abstract:

Hypothesis: The cultural background of an individual will have a significant effect on their perception of heroes. The purpose of this study was to investigate how one’s cultural background may affect one’s perception of heroes. The results of Study 1 revealed significant cultural differences in ratings of heroic traits. Study 2 employed a trait-sorting and hero-sorting task to explore underlying categories of traits and heroes across cultures. The results again revealed substantial cultural differences, suggesting that heroes, heroic traits, and heroism in general are all constructions of one’s culture and nationality.

“It’S Part Of My Responsibility To Help”: Developing A Measure Of Motivations For Extrinsic Emotion Regulation, Sara A. Cloonan, Kristjen B. Lundberg

Arts & Sciences Student Symposium

Introduction

A growing field of research has emerged to examine the processes by which people manage their own emotions as well as the emotions of others during social interactions, a set of phenomena broadly known as interpersonal emotion regulation (IER). Within this broad category, extrinsic emotion regulation (EER) refers specifically to the processes by which an individual targets and attempts to regulate the emotions of others (Zaki & Williams, 2013). Recent work by Netzer et al. (2015) has explored the emotion-related goals people have when engaging in EER, suggesting that both hedonic and instrumental goals may motivate these regulation attempts. …

Examining Successful Aging And Resilience After Disasters, Katie Elizabeth Stanko

LSU Doctoral Dissertations

Resilience, a psychological adaptive process and outcome, is the ability to return to normal functioning after a traumatic event, such as a natural disaster. Successful aging entails biological, psychological, and social factors. The Great Flood of 2016 in the greater Baton Rouge area caused catastrophic structural damage to thousands of homes and businesses. Some of these individuals had previously moved to the Baton Rouge area after receiving catastrophic damage during Hurricane Katrina in 2005. In this study, I investigated the role that age group (younger, middle-aged, older) and disaster exposure group (control, single exposure, double exposure) had on post-disaster well-being. …

Basal Ganglia Involvement In The Playfulness Of Juvenile Rats, Stephen M. Siviy

Psychology Faculty Publications

Play is an important part of normal childhood development and can be readily studied in the laboratory rat in the form of rough‐and‐tumble play. Given the robust nature of rough‐and‐tumble play, it has often been assumed that the basal ganglia would have a prominent role in modulating this behavior. Recent work using c‐fos expression as a metabolic marker for neural activity combined with temporary inactivation of relevant corticostriatal regions and pharmacological manipulations of opioid, cannabinoid, and dopamine systems has led to a better understanding of how basal ganglia circuitry may be involved in modulating social play in the juvenile rat. …

Forget Me Not: Are Stronger Memories More Susceptible To Retrieval-Induced Forgetting?, Laura Lee Heisick

LSU Doctoral Dissertations

Successfully retrieving information sometimes causes forgetting of related, but unpracticed, information, termed retrieval-induced forgetting (RIF). One explanatory mechanism of RIF suggests related, but currently irrelevant, information is inhibited during retrieval, resulting in poorer memory for competing representations. Critically, this perspective suggests stronger memories are more susceptible to RIF because stronger representations produce additional competition when unpracticed. To resolve this competition, strong competing items are inhibited, resulting in the counterintuitive prediction that stronger memories are more likely to be forgotten. The aim of the current experiments was to replicate and extend recent work suggesting non-typical objects and own-race faces, both of …

Disentangling The Impact Of Poor Sleep From Depressive Symptoms On Emotion Regulation, Kimberly O'Leary

USF Tampa Graduate Theses and Dissertations

Depressive symptoms and sleep are both strongly associated with deficits in emotional functioning (Durmer & Dinges, 2005; van der Helm & Walker, 2010). Although sleep and depression are tightly intertwined, understanding their independent and conjoint impact on emotional functioning is imperative. Given the limitations of previous designs, the primary goal of this study was to examine the separate impact of poor sleep quality and depressive symptoms on emotion regulation. In order to accomplish this goal, we preselected groups on the basis of their sleep and depression profiles: individuals with mainly sleep problems (N = 30), individuals with mainly depressive symptoms …

Integrating Work Ability Into The Organizational Science Literature: Advancing Theory And Developing The Nomological Network, Grant Brady

Dissertations and Theses

As the workforce ages, enabling individuals to work effectively across the lifespan is critical for individuals, organizations, and societies. Put simply, societies and organizations are beginning to face a "new normal" in which people must continue working later in life. Investigations of work ability (WA), an individual's ability to meet the demands of their job, is a line of research that facilitates our understanding of the factors related to working successfully across the lifespan. Although research has established that WA is influenced by a range of organizational and personal factors and linked WA to retirement and disability, a number of …

Exploring The Role Of Gender And Race In Salary Negotiations, Chelsea D. Hightower

LSU Master's Theses

Research findings from the negotiation literature have revealed significant differences in the negotiation behaviors of men and women, specifically that women do not negotiate as often or as successfully as men do. This difference has been cited as one of many factors contributing to the persistence of the gender wage gap. A possible explanation for the differences is that men and women are treated differently when they negotiate. Thus, there is evidence that women negotiators tend to receive multiple forms of social and economic punishment (i.e., backlash) for engaging in behavior that is inconsistent with stereotype-based expectations of women in …

Empowered Learning Systems In Student Success, Craig C. Laupheimer

Education | Master's Theses

Abstract/Description

Although various support systems are attempted by public schools to cause changes in student motivation and academic performance, students continue to consistently under perform and doubt their academic potential. A literature review revealed a growing body of research outlining a direct relationship between internal beliefs and performance outcomes. Yet little has been done to understand student thought patterns from their perspective, or to what extent they are able to recognize and address the internal systems of language, belief, and emotion that interact with learning. By analyzing a wide range of student perspectives, this study examines what tools and strategies …

The Roles Of Pragmatic Language And Theory Of Mind In The Adaptive Communication Skills Of Children With Autism Spectrum Disorder, Taja Estrada

Clinical Psychology Dissertations

Children with autism spectrum disorder (ASD) exhibit marked social communication impairments. Research suggests that these deficits often lead to delays in adaptive behavior, such as adaptive communication. In this study, I examined the roles of two social constructs, pragmatic language and theory of mind (ToM), in the adaptive communication abilities of young children with and without ASD. Thirteen children with ASD (31% female; M age = 58.08 months) and 24 children with typical development (58% female; M age = 52.42 months) between the ages of 3:0 and 6:5 were assessed. Adaptive communication was measured by the Functional Communication subscale of …

Neuro-Correlates Of Word Processing Among Four-And-Five-Year-Old Children From Homes Varying In Socio-Economic Status, Wendy Olsen

USF Tampa Graduate Theses and Dissertations

A large body of research relates families’ socioeconomic status (SES) to child language development (Hoff & Tian, 2005). Results from these studies indicate preschoolers from low SES backgrounds may have underdeveloped linguistic foundations required for future academic success (Sirin, 2005; Lacouri & Tissington, 2011). These differences have been said to create a 30 million word-gap between the language experiences of low and middle to high SES children by the age of 3 years. Thus, children who come from lower SES backgrounds often lack the vocabulary knowledge used in school and in textbooks (Hart & Risley, 1995). One index of SES …

The “Journey” Of Doctoral Study In Applied Psychology: Lived Experiences Of Students In Counseling, Clinical, And School Psychology, Jason S. Frydman, Linda Cheung, Joseph G. Ponterotto

The Qualitative Report

A qualitative methodology was adopted to explore the lived experiences of doctoral level students in applied psychology. A total of 15 students ranging in age from 24 to 43, who were at varying levels of their doctoral education, participated in individual semi-structured interviews exploring themes related to influences for the pursuit of graduate study, experiences in their program of study, and general reflections of the graduate school journey. All interviews were conducted from a constructivist-interpretivist model, transcribed verbatim, and analyzed using a phenomenological coding approach (Creswell, 2012; Moustakas, 1994). Emergent broad themes included antecedents leading to graduate study, current experience …

Will Society Break Down When Women Earn More Than Men?, Singapore Management University

Perspectives@SMU

Relationships may be even happier when females pull in the big bucks

The Influence Of Technological Reliability And Supervisor Supportiveness On Work Stress, Justin W. Morgan, Jonathan S. Gore

Kentucky Journal of Undergraduate Scholarship

Despite the prevalence of workplace stress, little research has identified both the social and technological sources of it. In two studies, we examined the role of supervisor support and reliable technology in the alleviation of stress. In Study 1, working adults in Mechanical Turk (n = 225) completed an online survey asking them about their workplace attitudes and opportunities. Results of a regression analysis showed that supportive supervisors and reliable technology were the only predictors of lowered stress, even while accounting for coworkers, pay, promotion opportunities, and everyday workplace tasks. In Study 2, undergraduate students (n = 186) …

Deaf Culture: Bicultural Identity Integration's Effect On Self-Esteem, Jessica E. Ritzmann, Jonathan S. Gore

Kentucky Journal of Undergraduate Scholarship

Bicultural Identity Integration (BII) is the result of how much a bicultural individual may feel that their two cultures cohesively work together, such as Chinese and American cultures (Benet-Martínez & Haritatos, 2005). BII’s effect on self-esteem has previously been looked at with immigrant families but has not really been looked at in regard to that of Deaf individuals with Deaf culture and hearing culture. The current study’s goal was to investigate the relationship between BII and a Deaf individuals self-esteem. It was hypothesized that 1) a Deaf individual’s level of BII will be positively correlated with their self-esteem. 2) those …

Do Schools Promote Executive Functions? Differential Working Memory Growth Across School-Year And Summer Months, Jenna E. Finch

Department of Psychology: Faculty Publications

Children’s working memory (WM) skills, which support both academic and social success, continue to improve significantly through the school years. This study leverages the first nationally representative data set with direct assessments of elementary school students’ WM skills to examine whether WM grows more during the school year or summer months and whether WM growth rates differ by household income. Results demonstrate that WM skills grow more during the school-year months compared to the summer months, suggesting that school environments provide children with unique opportunities to improve and practice their WM skills. Further, lower-income children have significantly faster WM growth …