Open Access. Powered by Scholars. Published by Universities.®

Social and Behavioral Sciences

Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 301 - 330 of 500

Full-Text Articles in Other Psychiatry and Psychology

Student Wellbeing And Open Studio Process In The School Curriculum, Maria Kim May 2020

Student Wellbeing And Open Studio Process In The School Curriculum, Maria Kim

Expressive Therapies Dissertations

This study aimed to explore whether Open Studio Process (OSP) increased wellbeing of middle and high school students when facilitated by teachers as a part of the regular art curriculum. It was hypothesized that OSP might increase the sense of wellbeing among middle and high school students as well as facilitating teachers. The research was conducted as a mixed methods study in South Korea where students need preventative interventions for their wellbeing. The researcher trained eight teachers to facilitate OSP and five of them implemented it with their classes for seven sessions. Quantitative data (K-YSR; pre- and posttest) were collected …


How Dance And Music Stimulate Therapeutic Change In A Personal Movement Ritual, Cassidy Bingham May 2020

How Dance And Music Stimulate Therapeutic Change In A Personal Movement Ritual, Cassidy Bingham

Expressive Therapies Capstone Theses

This thesis investigates the therapeutic effects of the researcher’s own arts practice or personal movement ritual, which is based in her tacit knowledge and intuition. The researcher is also the participant of this study. Her personal movement ritual, which was formalized as the method, was conducted before the literature review in order to prioritize tacit knowledge before introducing the influence of other scholars. In the literature review, Ellen Dissanayake’s and other scholars’ rationale for the emotional and cognitive changes that take place during rituals through music and dance are explained. These rationales, or the five constructs of entrainment, “ …


Mental Associations And Music Therapy: Including The History Of Associationism And The Neurology Of Associations, Dianna Rose May 2020

Mental Associations And Music Therapy: Including The History Of Associationism And The Neurology Of Associations, Dianna Rose

Expressive Therapies Capstone Theses

Associations are formed in our minds based upon three elements: sensory experience, emotions, and memories. These associations, unique to each individual, dictate thoughts, beliefs, behaviors, and actions. Some are necessary and supportive, while others can be maladaptive. Established associations can be changed, and new associations can be formed, to align with a client’s goals. The literature presents a strong history of associationism, as well as a body of research that demonstrates the neurological processes of how mental associations are formed. There are also studies showing how music activates the brain. However, there is a lack of research which draws direct …


A Comprehensive Examination Of The Immediate Recovery Of Children Following Tonsillectomy And Adenoidectomy, Bryan K. Lao, Zeev N. Kain, Dina Khoury, Brooke N. Jenkins, Jeremy Prager, Robert S. Stevenson, Brenda Golianu, Jeannie Zuk, Jeffrey I. Gold, Qiu Zhong, Michelle A. Fortier May 2020

A Comprehensive Examination Of The Immediate Recovery Of Children Following Tonsillectomy And Adenoidectomy, Bryan K. Lao, Zeev N. Kain, Dina Khoury, Brooke N. Jenkins, Jeremy Prager, Robert S. Stevenson, Brenda Golianu, Jeannie Zuk, Jeffrey I. Gold, Qiu Zhong, Michelle A. Fortier

Psychology Faculty Articles and Research

Objectives

Using multiple well-validated measures and a large sample size, the goal of this paper was to describe the immediate clinical and behavioral recovery of children following tonsillectomy with or without an adenoidectomy (T&A) during the first two weeks following surgery.

Study design

Observational, longitudinal study.

Setting

Four major pediatric hospitals in the U.S. consisting of Children's Hospital of Orange County, Children's Hospital of Los Angeles, Lucile Packard Children's Hospital, and Children's Hospital Colorado.

Subjects

and Methods: Participants included 827 patients between 2 and 15 years of age who underwent tonsillectomy with or without adenoidectomy surgery. Baseline and demographic …


The Impact Of Stress On Diet, Sleep, And Exercise Amongst College Students, Jessica Rizzo May 2020

The Impact Of Stress On Diet, Sleep, And Exercise Amongst College Students, Jessica Rizzo

Senior Honors Projects

Stress is something that everyone faces in their lifetime and has an everlasting impact on their health. College students face high levels of stress throughout the semester, but how is that impacting their behavior? I conducted a survey alongside Dr. Melanson, a professor in the Department of Nutrition and Food Sciences, to see just how college students are reacting to stress. The survey was circulated to different departments and classes to achieve a widespread collection of data. The survey remained completely anonymous and posed questions about eating, exercise, and sleep habits, along with questions on demographics and stress levels. Our …


Demographic Predictors Of Adult Behaviors In The Pediatric Postoperative Environment, Natasha H. Hikita, Amber Osorno, Carlie Taurosa, Michelle A. Fortier, Zeev N. Kain, Brooke N. Jenkins May 2020

Demographic Predictors Of Adult Behaviors In The Pediatric Postoperative Environment, Natasha H. Hikita, Amber Osorno, Carlie Taurosa, Michelle A. Fortier, Zeev N. Kain, Brooke N. Jenkins

Student Scholar Symposium Abstracts and Posters

Over 85% of children experience postoperative pain. If poorly treated, pediatric postoperative pain may lead to various negative health outcomes. Adult behaviors may be associated with child experiences in the postoperative environment. For example, adult behaviors such as distraction, humor, and coping advice divert a child’s attention away from their pain and thus, may significantly reduce child postoperative distress. In contrast, adult behaviors such as empathy, reassurance, and apology direct a child’s attention towards their pain which may increase a child’s overall postoperative distress. Moreover, patient demographic factors, like child ethnicity, may significantly alter the frequency of use of these …


Positive Emotions And Favorable Cardiovascular Health: A 20-Year Longitudinal Study, Julia K. Boehm, Ying Chen, Farah Qureshi, Jackie Soo, Peter Umokoro, Rosalba Hernandez, Donald Lloyd-Jones, Laura D. Kubzansky Apr 2020

Positive Emotions And Favorable Cardiovascular Health: A 20-Year Longitudinal Study, Julia K. Boehm, Ying Chen, Farah Qureshi, Jackie Soo, Peter Umokoro, Rosalba Hernandez, Donald Lloyd-Jones, Laura D. Kubzansky

Psychology Faculty Articles and Research

No studies have examined whether positive emotions lead to favorable cardiovascular health (CVH) early in the lifespan, before cardiovascular disease is diagnosed. Moreover, the direction of the association has not been thoroughly investigated. Among younger adults, we investigated whether baseline positive emotions were associated with better CVH over 20 years. We also considered whether baseline CVH was associated with subsequent positive emotions during the same period.

Participants included 4196 Black and White men and women from the Coronary Artery Risk Development in Young Adults Study. Positive emotions and cardiovascular-related parameters were each assessed in 1990 (this study's baseline), with repeated …


Recognizing The Need For Mental Health Reform In The Texas Department Of Criminal Justice, Kara Mchorse Apr 2020

Recognizing The Need For Mental Health Reform In The Texas Department Of Criminal Justice, Kara Mchorse

St. Mary's Law Journal

The ways in which mental health care and the criminal justice system interact are in desperate need of reform in Texas. The rate of mental illness in Texas is higher than the current state of mental health care can provide for. While state hospitals were once the primary care facilities of those with mental illness, the Texas Department of Criminal Justice (TDCJ) has taken on that role in the last few decades; and when the criminal justice system becomes entangled with mental health care, it often leads to “unmitigated disaster.” If Texas continues to allow the TDCJ to act as …


Variable Magnitude And Frequency Financial Reinforcement Is Effective At Increasing Adults’ Free-Living Physical Activity, Vincent Berardi, Melbourne Hovell, Jane C. Hurley, Christine B. Phillips, John Belletierre, Michael Todd, Marc A. Adams Mar 2020

Variable Magnitude And Frequency Financial Reinforcement Is Effective At Increasing Adults’ Free-Living Physical Activity, Vincent Berardi, Melbourne Hovell, Jane C. Hurley, Christine B. Phillips, John Belletierre, Michael Todd, Marc A. Adams

Psychology Faculty Articles and Research

Financial rewards can increase health behaviors, but little research has quantified the effects of different reinforcement schedules on this process. This analysis compares the average moderate-to-vigorous physical activity (MVPA) associated with six distinct positive reinforcement schedules implemented within a physical activity promotion clinical trial. In this trial, participants (N = 512) wore an accelerometer for 1 year and were prescribed one of two types of MVPA goals: a static 30-min goal or an adaptive goal based on the MVPA produced over the previous 9 days. As participants met goals, they transitioned through a sequence of reinforcement stages, beginning with …


The Project Talent Twin And Sibling Study: Zygosity And New Data Collection, Carol A. Prescott, Ellen E. Walters, Thalida Em Arpawong, Catalina Zavala, Tara L. Gruenewald, Margaret Gatz Feb 2020

The Project Talent Twin And Sibling Study: Zygosity And New Data Collection, Carol A. Prescott, Ellen E. Walters, Thalida Em Arpawong, Catalina Zavala, Tara L. Gruenewald, Margaret Gatz

Psychology Faculty Articles and Research

The Project Talent Twin and Sibling (PTTS) study includes 4481 multiples and their 522 nontwin siblings from 2233 families. The sample was drawn from Project Talent, a U.S. national longitudinal study of 377,000 individuals born 1942–1946, first assessed in 1960 and representative of U.S. students in secondary school (Grades 9–12). In addition to the twins and triplets, the 1960 dataset includes 84,000 siblings from 40,000 other families. This design is both genetically informative and unique in facilitating separation of the ‘common’ environment into three sources of variation: shared by all siblings within a family, specific to twin-pairs, and associated with …


The Missing Moral Dimension: Perceptions Of Transgressions And The Moderating Role Of Moral Foundations On Psychological Distress, Hannah Reas Jan 2020

The Missing Moral Dimension: Perceptions Of Transgressions And The Moderating Role Of Moral Foundations On Psychological Distress, Hannah Reas

Clinical Psychology Dissertations

Anxiety and depression can be represented on a dimensional spectrum of negative affect, broadly termed psychological distress. Research has identified several factors that maintain negative emotion, but have neglected the possibility that individuals’ interpretations of moral issues in the larger macro-system affects their level of distress. Thus, the current study investigated the role of perceptions of moral transgressions, or cognitive interpretations of stimuli (“transgressions”) that violate beliefs about right and wrong, as a predictor of psychological distress. Furthermore, this study tested how perceptions of moral transgressions vary as a function of individuals’ own moral intuitions, or moral foundations. Participants ( …


The Provider Perspective On Behavioral Health Care For Transgender And Gender Nonconforming Individuals In The Central Great Plains: A Qualitative Study Of Approaches And Needs, Natalie Holt, Debra A. Hope, Richard Mocarski, Heather Meyer, Robyn King, Nathan Woodruff Jan 2020

The Provider Perspective On Behavioral Health Care For Transgender And Gender Nonconforming Individuals In The Central Great Plains: A Qualitative Study Of Approaches And Needs, Natalie Holt, Debra A. Hope, Richard Mocarski, Heather Meyer, Robyn King, Nathan Woodruff

Trans Collaborations Academic Papers

Purpose—Transgender and gender nonconforming (TGNC) individuals interact with mental health care systems at high rates and experience substantial barriers to care. Rural TGNC individuals face additional disparities in accessing appropriate mental health services. Little research has focused on the mental healthcare providers who work with TGNC individuals in underserved areas. The current study sought to describe the mental health care services delivered by providers perceived as affirming by TGNC community members in the Central Great Plains.

Methods—We conducted qualitative interviews with 10 providers to understand how providers seek cultural competency and conceptualize and work with their TGNC clients given the …


The Role Of Awareness In Traumatic Brain Injuries: Interviews With Experts, Dominique Chao Jan 2020

The Role Of Awareness In Traumatic Brain Injuries: Interviews With Experts, Dominique Chao

Graduate School of Professional Psychology: Doctoral Papers and Masters Projects

Approximately 2.8 million US citizens sustain a traumatic brain injury (TBI) annually, with more than 275,000 requiring inpatient rehabilitation (Taylor, Bell & Breiding, 2013). As rehabilitation techniques are refined and adapted to increase the speed of recovery and functional independence following TBIs, there is an ongoing need for better prognostic assessment tools. Research has shown that a lack of self-awareness following TBI is associated with poorer outcomes (e.g. employability, community reintegration) following discharge from inpatient hospitalizations (Cheng & Man, 2006; Robertson & Schmitter, 2016) and can result in decreased motivation (Simmonds & Fleming, 2003), compromised safety, poor community re-integration, and …


Political Centrism, Perspective Taking, And Outgroup Derogation: An Integrated Model, David Kesler Jan 2020

Political Centrism, Perspective Taking, And Outgroup Derogation: An Integrated Model, David Kesler

Murray State Theses and Dissertations

Abstract

The relationship between perspective taking abilities, political centrism, and outgroup derogation is not defined at this time. While previous research has demonstrated a negative relationship between political centrism and outgroup derogation (Van Prooijen, Krouwel, Boiten, & Eendebak, 2015), the relationship between the other variables is unclear. Therefore, the current study sought to measure the relationship between (1) perspective taking abilities and political centrism, (2) perspective taking and outgroup derogation, (3) political centrism and outgroup derogation and lastly, (4) whether the relationship between perspective taking abilities and political outgroup derogation would be mediated by an individual's level of political centrism.


The Relationship Between Social Media Engagement And Psychological Well-Being In College Students At The University Of New Hampshire, Emily G. D'Antonio Jan 2020

The Relationship Between Social Media Engagement And Psychological Well-Being In College Students At The University Of New Hampshire, Emily G. D'Antonio

Honors Theses and Capstones

Social media use has increased substantially in recent years, and for the college-aged population, social media is often the leading method of communication. Research indicates this reliance on digital connection could have a negative impact on the health of young adults (Bagroy et al., 2017). The college years are a time of personal growth and defining actions, yet can also be burdened by mental health issues related to stress, anxiety, and depression (Hunt & Eisenberg, 2010). Acknowledging these trends, the current study explores how college students’ specific frequency and intentionality while interacting on social media relates to their psychological well-being. …


The Healing Power Of The Arts - Drama Therapy And The Use Of Theatre In The Treatment Of Trauma, Brooklyn Snyder Dec 2019

The Healing Power Of The Arts - Drama Therapy And The Use Of Theatre In The Treatment Of Trauma, Brooklyn Snyder

Student Scholar Symposium Abstracts and Posters

Theatre is an incredibly valuable therapeutic tool. In this thesis, I explore the ways in which trauma can reshape individuals lives, both cognitively and physically, impeding their sense of self, ability to trust, engagement, and many other seemingly ordinary aspects of day to day life that those of us unaffected by trauma take for granted. Additionally, I cover how employing theatrical tools, like improvisation and role play, can act as a beneficial treatment option for those who have suffered a traumatic past. Drama therapy allows individuals to reconnect with their bodies and their minds, gain new perspectives on their experiences, …


Human Milk Omega-3 Fatty Acid Composition Is Associated With Infant Temperament, Jennifer Hahn-Holbrook, Adi Fish, Laura M. Glynn Dec 2019

Human Milk Omega-3 Fatty Acid Composition Is Associated With Infant Temperament, Jennifer Hahn-Holbrook, Adi Fish, Laura M. Glynn

Psychology Faculty Articles and Research

There is growing evidence that omega-3 (n-3) polyunsaturated fatty-acids (PUFAs) are important for the brain development in childhood and are necessary for an optimal health in adults. However, there have been no studies examining how the n-3 PUFA composition of human milk influences infant behavior or temperament. To fill this knowledge gap, 52 breastfeeding mothers provided milk samples at 3 months postpartum and completed the Infant Behavior Questionnaire (IBQ-R), a widely used parent-report measure of infant temperament. Milk was assessed for n-3 PUFAs and omega-6 (n-6) PUFAs using gas-liquid chromatography. The total fat and the ratio of n6/n-3 fatty acids …


The Role Of Gamma Oscillations And Cortical Inhibition In The Development Of Working Memory In Adolescence, Christopher P. Walker Dec 2019

The Role Of Gamma Oscillations And Cortical Inhibition In The Development Of Working Memory In Adolescence, Christopher P. Walker

Dissertations and Theses (Open Access)

Adolescence is a dynamic period of social, cognitive, and biological changes. In particular, working memory, the ability to actively encode and maintain information over a short period of time, develops early in childhood and gradually increases in capacity and stability during adolescence. The precise neurophysiological mechanism by which working memory capacity increases during adolescence is unclear. The objective of this investigation was to evaluate the role of cortical gamma-band (> 30 Hz) oscillations—which are associated with working memory in adults—for the development of working memory capacity in adolescents, and to identify the extent to which the temporal profile of gamma-aminobutyric …


Improving Access To Mental Health Care With Nurse Practitioners, Jessica Whelan Nov 2019

Improving Access To Mental Health Care With Nurse Practitioners, Jessica Whelan

Dissertations

Problem: Over 40% of those with mental illness are untreated since the supply of psychiatrists does not meet the demand. The psychiatric mental health nurse practitioner (PMHNP) may be an adjunct in providing those services. The purpose of this quality assurance study was to evaluate outcomes of care between a PMHNP and a psychiatrist (medical doctor [MD]).

Methods: An observational, descriptive design with a retrospective medical record review of adult patients over a six-month period in a suburban, Midwestern, privately owned psychiatric practice.

Results: A total of 787 individual patients encountered at least one visit (N=787) although 3,679 …


Nursing Campus Therapy Dog, Deborah A. Hall Nov 2019

Nursing Campus Therapy Dog, Deborah A. Hall

Nursing Theses and Dissertations

An acknowledged bond has existed between humans and animals throughout history. Therapeutic physical and psycho-social effects of these bonding relationships have been noted in health care settings. Professional nursing education is known to be one of the most demanding and stressful fields of study. Students begin to experience extreme stress early in their nursing education. An animal-assisted intervention with a therapy dog is an innovative and inexpensive action that can help decrease the stress, anxiety, and depression students experience in higher education.

The focus of this dissertation portfolio was an animal-assisted intervention with a nursing campus therapy dog. The initial …


Trans Collaborations Clinical Check-In (Tc3): Initial Validation Of A Clinical Measure For Transgender And Gender Diverse Adults Receiving Psychological Services, Natalie R. Holt, Terrence Z. Huit, Grant Shulman, Jane L. Meza, Jolene Smyth, Nathan Woodruff, Richard Mocarski, Jae Puckett, Debra A. Hope Nov 2019

Trans Collaborations Clinical Check-In (Tc3): Initial Validation Of A Clinical Measure For Transgender And Gender Diverse Adults Receiving Psychological Services, Natalie R. Holt, Terrence Z. Huit, Grant Shulman, Jane L. Meza, Jolene Smyth, Nathan Woodruff, Richard Mocarski, Jae Puckett, Debra A. Hope

Trans Collaborations Academic Papers

One key aspect of evidence-based psychological services is monitoring progress to inform treatment decision making, often using a brief self-report measure. However, no such measure exists to support measurement based care given the distinct needs of transgender and gender diverse people (TGD), a group facing large documented health disparities and marginalization in healthcare. The purpose of the present study was to develop and provide initial psychometric validation of a short, behavioral health progress monitoring self-report measure, the Trans Collaborations Clinical Check-in (TC3). TGD communities, providers identified as TGD-affirmative, and relevant academic experts contributed to item and scale development. The final …


The Complex Relationship Between Celebrity-Driven Magazines And Depictions Of Fertility At Advanced Reproductive Ages, Brennan Peterson Oct 2019

The Complex Relationship Between Celebrity-Driven Magazines And Depictions Of Fertility At Advanced Reproductive Ages, Brennan Peterson

Marriage and Family Therapy Faculty Articles and Research

"In this issue of the Journal of Women’s Health, Willson and colleagues explore how age and fertility are portrayed in celebrity-driven magazines.1 Specifically, they examine if popular media depictions of celebrity pregnancies present accurate information related to age and fertility, the use of assisted reproductive technology (ARTs), and pregnancy-related risks associated with advanced maternal age (AMA >35 years). Their study provides an important viewpoint related to the impact of media on reproductive perceptions, and its potential intersection with delayed childbearing, fertility awareness, and reproductive decision making."


Texas, The Death Penalty, And Intellectual Disability, Megan Green Oct 2019

Texas, The Death Penalty, And Intellectual Disability, Megan Green

St. Mary's Law Journal

Abstract forthcoming


Does Ethnic Identity, In-Group Preference, And Acculturation Protect Latinas With A History Of Interpersonal Trauma From Developing Symptoms Of Ptsd?, Evelyn M. Ramirez Sep 2019

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 …


The Development Of Face Morphing Task To Assess Self Other Differentiation, Esen Karan Sep 2019

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 …


Recent Trends, Current Research In Cyberpsychology: A Literature Review, Amarjit Kumar Singh, Pawan Kumar Singh Aug 2019

Recent Trends, Current Research In Cyberpsychology: A Literature Review, Amarjit Kumar Singh, Pawan Kumar Singh

Library Philosophy and Practice (e-journal)

Cyberpsychology refers to the study of the mind and behavior in the context of interactions with technology. It is an emerging branch, which has focused on the psychological aspects connected to the increasing presence and usages of technology in modern lives. This paper traces recent advancement and trends of Cyberpsychology is an emerging domain of knowledge and goes on the give a literature review of the same. An analysis of the recent research and literature covering 300 most relevant research papers from the period of 2012 to 15, August 2019 was conducted to determine and shape the research pattern based …


Childhood Sexual Abuse: The Truth Behind The Trauma, Alexandra Punch Jul 2019

Childhood Sexual Abuse: The Truth Behind The Trauma, Alexandra Punch

Population Health Research Brief Series

There are many misconceptions about coping behaviors, laws, and regulations that make coming forward difficult and painful. This issue brief discusses the hurdles for child victims of sexual assault and the initiatives taking place across the country to combat stereotypes and bring justice to children and their families.


An Interpretative Phenomenological Analysis Investigating Uk Female Experiences Of Psychosocial Adjustment Following Bariatric Surgery, Mark J. Maxwell Jul 2019

An Interpretative Phenomenological Analysis Investigating Uk Female Experiences Of Psychosocial Adjustment Following Bariatric Surgery, Mark J. Maxwell

The Qualitative Report

The psychosocial impact of bariatric surgery has not been studied as diligently as the physical impact, particularly within the first 6 months following surgery. The aim of the present study was to explore psychosocial adjustment in UK bariatric candidates within this time-scale. Six female participants were purposively recruited to complete a semi-structured interview, and Interpretative Phenomenological Analysis was used to analyse their experiences. Four super-ordinate themes emerged from the interview data which were: (1) "It was me but it wasn’t me": pre-surgery identity, (2) "I don’t see myself as this fat blob of a person anymore": transforming identity, (3) "No …


Identifying Depression In The National Health And Nutrition Examination Survey Data Using A Deep Learning Algorithm, Jihoon Oh, Kyongsik Yun, Uri Maoz, Tae-Suk Kim, Jeong-Ho Chae Jul 2019

Identifying Depression In The National Health And Nutrition Examination Survey Data Using A Deep Learning Algorithm, Jihoon Oh, Kyongsik Yun, Uri Maoz, Tae-Suk Kim, Jeong-Ho Chae

Psychology Faculty Articles and Research

Background

As depression is the leading cause of disability worldwide, large-scale surveys have been conducted to establish the occurrence and risk factors of depression. However, accurately estimating epidemiological factors leading up to depression has remained challenging. Deep-learning algorithms can be applied to assess the factors leading up to prevalence and clinical manifestations of depression.

Methods

Customized deep-neural-network and machine-learning classifiers were assessed using survey data from 19,725 participants from the NHANES database (from 1999 through 2014) and 4949 from the South Korea NHANES (K-NHANES) database in 2014.

Results

A deep-learning algorithm showed area under the receiver operating characteristic curve (AUCs) …


An Integration-To-Bound Model Of Decision-Making That Accounts For The Spectral Properties Of Neural Data, Ramón Guevara Erra, Marco Arbotto, Aaron Schurger Jun 2019

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.