Psychiatry and Psychology Commons^™

Effects On Task Performance And Psychophysiological Measures Of Performance During Normobaric Hypoxia Exposure, Chad Stephens, Kellie Kennedy, Nicholas Napoli, Matthew Demas, Laura Barnes, Brenda Crook, Ralph Williams, Mary Carolyn Last, Paul Schutte

International Symposium on Aviation Psychology - 2017

Human-autonomous systems have the potential to mitigate pilot cognitive impairment and improve aviation safety.A research team at NASA Langley conducted an experiment to study the impact of mild normobaric hypoxia induction on aircraft pilot performance and psychophysiological state. A within-subjects design involved non-hypoxic and hypoxic exposures while performing three 10-minute tasks.Results indicated the effect of 15,000 feet simulated altitude did not induce significant performance decrementbut did produce increasein perceived workload. Analyses of psychophysiological responses evince the potential of biomarkers for hypoxia onset. This study represents on-going work at NASA intending to add to the current knowledge of psychophysiologically-based input to …

Does The Projected-Hand Illusion Help In Teleoperation?, Lloyd Wajon, M.M. (René) Van Paassen, David A. Abbink, Erwin Boer, Max Mulder

International Symposium on Aviation Psychology - 2017

A body illusion, commonly known in the form of the “Rubber Hand Illusion”, is an illusion wherein visual inputs on an inanimate object and simultaneous tactile inputs on a part of the body lead to a situation where the inanimate object is identified as the body part. This study investigated the possibility of inducing a body illusion during a teleoperated reaching task, to see if this leads toincreased telepresence and improved accuracy. Three conditions were presented in random order; the Direct Control (DC) condition, where the participant’s hand is shown on the screen, the Projected Hand Illusion (PHI) condition, showing …

A Trend Analysis Of Human Factors Issues In Uk Military Aviation, Sarah Weedon, Victoria Cutler, Saskia Revell

International Symposium on Aviation Psychology - 2017

Human factors issues in UK military aviation are identified and mitigated through a combination of proactive support and reactive investigations, both of which employ qualitativedata collection and analysis methods. Each piece of work to identify human factors issues is performed on a standalone basis, but a regular review is undertaken to identify common trends. In the most recent review of trends, thematic analysis was used within the framework of the Accident Route Matrix to determine the most prevalent and qualitatively important human factors issues. The thematic analysis identified a wide range of human factors issues, including resource availability, training, documentation, …

Individual Pilot Factors Predict Diversion Management During A Simulated Cross- Country Vfr Flight, Kathleen Van Benthem Ph.D., Chris M. Herdman Ph.D.

International Symposium on Aviation Psychology - 2017

The risk of an accident during general aviation (GA) flight increases when pilots are required to make unexpected diversions. Specifically, a diversion may result in loss of situation awareness (SA). Loss of SA is associated with controlled flight into terrain,incorrect trajectory for orbiting or landing, or becoming lost en route. In the present study, 44 GA pilots (aged 41 to 74 years) flew a cross-country route in a Cessna 172 simulator and encountered an unexpected diversion to an alternate aerodrome. The outcome measure consisted of a diversion management score. Significant predictors of diversion management were pilot age and license, a …

Effects Of Simulator Training For Unmanned Aerial Systems In Undergraduate Education, William Weldon, Dr. Brian Kozak

International Symposium on Aviation Psychology - 2017

Unmanned aerial systems (UAS) are being added to the national airspace (NAS) in very large numbers. Many universities have seen this demand for UAS operators and begun to create programs in order to train undergraduate students in their use. The UAS industry currently lacks adequatetraining requirements for beginning operators. This fact makes university training important, because universities are oneof the few places that offer structured training. While the UAS industry in the US is in its infancy it is possible to draw parallelismsthe training history of manned flight in order to avoid pitfalls and offer training in the most efficient …

Transparency And Conflict Resolution Automation Reliability In Air Trffic Control, Fitri Trapsilawati, Christopher Wickens, Chun-Hsien Chen, Xingda Qu

International Symposium on Aviation Psychology - 2017

This paper investigates the automation reliability and the transparency in automation conflict resolutionadvisories for air traffic control. Fourgeneral effects: those of traffic load, those of expertise and,those of imperfect automationand its mitigation by automation transparencyin the context of the lumberjack analogywere examined. The results showed that the two automation functions, theconflict resolution advisor (CRA)and thevertical situation display (VSD) offer benefits for both novice andprofessional controllers’s performance and increased situation awarenessacross traffic loads, even when the former is of imperfect reliability.

An Investigation Of Minimum Information Requirements For An Unmanned Aircraft System Detect And Avoid Traffic Display, Kevin W. Williams

International Symposium on Aviation Psychology - 2017

This study was conducted to support the development of Minimum Operational Performance Specifications for UAS Detect and Avoid traffic displays being developed by RTCA Special Committee 228.The experiment tested four different display configurations. Thesewere a baseline display, an indication of Closest Point of Approach (CPA), an avoidance area (blob) indication, and a banding display. Also manipulated in the study weretwo levels of pilot experience and two types of control interface.Analysis of the well clear violations showed a significant effect due to display type. Individual comparisons revealed that both the avoidance areaand banding displays significantly decreased the likelihood of violating well …

Burnout Or Depression: Both Individual And Social Issue, Renzo Bianchi, Irvin Sam Schonfeld, Éric Laurent

Publications and Research

In view of the profound problems attached to the construct of burnout, we recommended in our that occupational health specialists focus on (job-related) depression rather than burnout to help workers more effectively. The phenomena of interest (burnout or depression) should not be confused with the perspectives (individual or social) adopted to elucidate those phenomena. Both burnout and depression are best explained through the interaction of social or external conditions with individual or internal dispositions.

A Theory Of Veteran Identity, Travis L. Martin

Theses and Dissertations--English

More than 2.6 million troops have deployed in support of the wars in Iraq and Afghanistan. Still, surveys reveal that more than half feel “disconnected” from their civilian counterparts, and this feeling persists despite ongoing efforts, in the academy and elsewhere, to help returning veterans overcome physical and mental wounds, seek an education, and find meaningful ways to contribute to society after taking off the uniform. This dissertation argues that Iraq and Afghanistan War veterans struggle with reassimilation because they lack healthy, complete models of veteran identity to draw upon in their postwar lives, a problem they’re working through collectively …

Stress Reducing Effects Of Indoor Plants In A Classroom Setting, Laura Tennant

Student Research Posters

Previous research has demonstrated that natural views and access to plants appear to have significant beneficial effects on individuals (Relf, 1992). Studies of green views out of a classroom window showed significant reductions in students’ mental fatigue (Li & Sullivan, 2016), and studies of indoor plants in hospital settings showed stress reduction and increased healing rates in patients (Ulrich, 1984). Indoor plants in the workplace demonstrated improved employee performance (Kweon, Ulrich, Walker, & Tassinary, 2008). However, there have been few studies examining the impact indoor plants might have in a classroom setting. This study used an experimental design to measure …

A Comparison Of Parameter Covariance Estimation Methods For Item Response Models In An Expectation-Maximization Framework, Joshua N. Pritikin

Psychiatry Publications

The Expectation-Maximization (EM) algorithm is a method for finding the maximum likelihood estimate of a model in the presence of missing data. Unfortunately, EM does not produce a parameter covariance matrix for standard errors. Both Oakes and Supplemented EM are methods for obtaining the parameter covariance matrix. SEM was discovered in 1991 and is implemented in both opensource and commercial item response model estimation software. Oakes, a more recent method discovered in 1999, had not been implemented in item response model software until now. Convergence properties, accuracy, and elapsed time of Oakes and Supplemental EM family algorithms are compared for …

Genetic And Environmental Structure Of Dsm-Iv Criteria For Antisocial Personality Disorder: A Twin Study, Tom Rosenström, Eivind Ystrom, Fartein Ask Torvik, Nikolai Olavi Czajkowski, Nathan A. Gillespie, Steven H. Aggen, Robert F. Krueger, Kenneth S. Kendler, Ted Reichborn-Kjennerud

Psychiatry Publications

Results from previous studies on DSM-IV and DSM-5 Antisocial Personality Disorder (ASPD) have suggested that the construct is etiologically multidimensional. To our knowledge, however, the structure of genetic and environmental influences in ASPD has not been examined using an appropriate range of biometric models and diagnostic interviews. The 7 ASPD criteria (section A) were assessed in a population-based sample of 2794 Norwegian twins by a structured interview for DSM-IV personality disorders. Exploratory analyses were conducted at the phenotypic level. Multivariate biometric models, including both independent and common pathways, were compared. A single phenotypic factor was found, and the best-fitting biometric …

A Power Calculator For The Classical Twin Design, Brad Verhulst

Psychiatry Publications

Power is a ubiquitous, though often overlooked, component of any statistical analyses. Almost every funding agency and institutional review board requires that some sort of power analysis is conducted prior to data collection. While there are several excellent on line power calculators for independent observations, twin studies pose unique challenges that are not incorporated into these algorithms. The goal of the current manuscript is to outline a general method for calculating power in twin studies, and to provide functions to allow researchers to easily conduct power analyses for a range of common twin models. Several scenarios are discussed to demonstrate …

Somatic Symptom Disorder In Dermatology, James L. Levenson, Aditi A. Sharma, Alex G. Ortega-Loayza

Psychiatry Publications

Somatic symptom disorder (SSD) is defined by the prominence of somatic symptoms associated with abnormal thoughts, feelings, and behaviors related to the symptoms, resulting in significant distress and impairment. Individuals with these disorders are more commonly encountered in primary care and other medical settings, including dermatology practice, than in psychiatric and other mental health settings. What defines the thoughts, feelings, and behaviors as abnormal is that they are excessive, that is, out of proportion to other patients with similar somatic symptoms, and that they result in significant distress and impairment. SSD may occur with or without the presence of a …

Electroconvulsive Therapy In Geriatric Patients: A Literature Review And Program Report From Virginia Commonwealth University, Richmond, Virginia, Usa, Andrew D. Snyder, Vasu Venkatachalam, Ananda Pandurangi

Psychiatry Publications

Electroconvulsive therapy (ECT) is an effective therapeutic intervention in the elderly patients with major depression, especially those with psychosis, suicidality, catatonia, nutritional compromise, and resistance to medications. Response rates can be as high as 80%. We present an extensive review of the relevant literature, provide a description of the ECT program at Virginia Commonwealth University in Richmond, Virginia, USA, and present results of our experience with ECT in fifty elderly patients. The treatments were safe, well tolerated, and produced high response rates, variably between 68% and 84%. Patients in the long‑term maintenance ECT program continue to show sustained benefits from …

Do Pediatric Gastroenterology Doctors Address Pediatric Obesity?, Suruchi Batra, Caitlin Yee, Bernadette Diez, Nicholas Nguyen, Michael J Sheridan, Mark Tufano, Natalie Sikka, Stacie Townsend, Suchitra Hourigan

Psychiatry and Behavioral Sciences Faculty Publications

Objectives:

To assess how often obesity is acknowledged at pediatric gastroenterology outpatient visits.

Methods:

A retrospective chart review was performed to identify obese children seen at a gastroenterology subspecialty clinic over a 1-year period of time; 132 children were identified. Demographics, obesity comorbidities, reasons for referral, diagnosis of obesity, and a plan to address obesity were abstracted. Chi-square or Fisher’s exact tests were used to examine statistical associations.

Results:

Only 49% of children were given a diagnosis of obesity. In total, 52% of children were given a body mass index reduction plan. Those diagnosed with obesity were more likely to …

Translating Mental Health Diagnostic And Symptom Terminology To Train Health Workers And Engage Patients In Cross-Cultural, Non-English Speaking Populations, Bibhav Acharya, Madhur Basnet, Pragya Rimal, David Citrin, Soniya Hirachan, Brandon Kohrt, +Several Additional Authors

Psychiatry and Behavioral Sciences Faculty Publications

Although there are guidelines for transcultural adaptation and validation of psychometric tools, similar resources do not exist for translation of diagnostic and symptom terminology used by health professionals to communicate with one another, their patients, and the public. The issue of translation is particularly salient when working with underserved, non-English speaking populations in high-income countries and low- and middle-income countries. As clinicians, researchers, and educators working in cross-cultural settings, we present four recommendations to avoid common pitfalls in these settings. We demonstrate the need for: (1) harmonization of terminology among clinicians, educators of health professionals, and health policymakers; (2) distinction …

Addressing Culture And Context In Humanitarian Response: Preparing Desk Reviews To Inform Mental Health And Psychosocial Support., M Claire Greene, Mark J D Jordans, Brandon A Kohrt, Peter Ventevogel, Laurence J Kirmayer, Ghayda Hassan, Anna Chiumento, Mark Van Ommeren, Wietse A Tol

Psychiatry and Behavioral Sciences Faculty Publications

Delivery of effective mental health and psychosocial support programs requires knowledge of existing health systems and socio-cultural context. To respond rapidly to humanitarian emergencies, international organizations often seek to design programs according to international guidelines and mobilize external human resources to manage and deliver programs. Familiarizing international humanitarian practitioners with local culture and contextualizing programs is essential to minimize risk of harm, maximize benefit, and optimize efficient use of resources. Timely literature reviews on traditional health practices, cultural beliefs and attitudes toward mental health and illness, local health care systems and previous experiences with humanitarian interventions can provide international practitioners …

Elucidating Adolescent Aspirational Models For The Design Of Public Mental Health Interventions: A Mixed-Method Study In Rural Nepal, Sauharda Rai, Safar Bikram Adhikari, Nanda Raj Acharya, Bonnie N. Kaiser, Brandon A. Kohrt

Psychiatry and Behavioral Sciences Faculty Publications

Background

Adolescent aspirational models are sets of preferences for an idealized self. Aspirational models influence behavior and exposure to risk factors that shape adult mental and physical health. Cross-cultural understandings of adolescent aspirational models are crucial for successful global mental health programs. The study objective was elucidating adolescent aspirational models to inform interventions in Nepal.

Methods

Twenty qualitative life trajectory interviews were conducted among adolescents, teachers, and parents. Card sorting (rating and ranking activities) were administered to 72 adolescents aged 15–19 years, stratified by caste/ethnicity: upper caste Brahman and Chhetri, occupational caste Dalit, and ethnic minority Janajati. …

Internalizing And Externalizing Dysfunction: An Integrative Model Of Adolescent Drinking, Leila Guller

Theses and Dissertations--Psychology

Separate externalizing and internalizing pathways to problem drinking have been described. However, internalizing and externalizing are substantially correlated, thus, there is good reason to believe that these two forms of dysfunction behaviors do not operate independently.

We tested an integrative developmental model of transactions among internalizing symptomatology, externalizing personality, and psychosocial learning in the prediction of both drinking problems and future internalizing symptoms. To do so, we studied a large sample (n = 1910, 49.9% female) of children over a critical developmental period, from the spring of 5th (last year elementary school) grade through the spring of 9th grade (first …