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Articles 991 - 1020 of 2065

Full-Text Articles in Other Psychiatry and Psychology

Work Dynamics Of Task Work And Teamwork In Function Allocation For Manned Spaceflight Operations, Martijn Ijtsma, Lanassie M. Ma, Amy R. Pritchett, Karen M. Feigh Jan 2017

Work Dynamics Of Task Work And Teamwork In Function Allocation For Manned Spaceflight Operations, Martijn Ijtsma, Lanassie M. Ma, Amy R. Pritchett, Karen M. Feigh

International Symposium on Aviation Psychology - 2017

This paper proposes a methodology for human-robot function allocation for future manned space exploration missions that uses fast-time computational simulation. Dynamics of taskwork and teamwork often result in emergent work patterns that are difficult to predict from static analysis of function allocations. Wemodel thedynamics of taskwork and teamwork and demonstrate our approach through a case study that explores the function allocation design space for an on-orbit maintenancemissioninvolving humans and various robots. The case study highlightsthe method’s ability to predict possible concerns associated with limited availability of physical resources, action interdependencies, and communication requirements with possible time delays, and shows the …

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Empirically Evaluating Representational Aids For Target Tracking And Sensor Management, Taleri Hammack, Jared Neely, Terry Stanard, Jason Roll, John Flach Jan 2017

Empirically Evaluating Representational Aids For Target Tracking And Sensor Management, Taleri Hammack, Jared Neely, Terry Stanard, Jason Roll, John Flach

International Symposium on Aviation Psychology - 2017

Today, security officers at military and civilian installations are often required to track people and vehicles (targets) movingin a remote space using a distributed array of stationary security cameras. A pervasive tracking challenge is maintaining view of the target as it moves through the restricted fields of view of different cameras. The current research explores how different displaydesigns indicating camera fields of viewimpact the operator’s situation awareness of the next best camera to continue viewing a moving target. Three different interface displays(Full North-Up Map, Peripheral Display, and Track-Up Mini-Map) wereevaluated over four experimental conditions.While having all display types available was …

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Human Performance Assessment: Evaluation And Experimental Use Of Wearable Sensors For Brain Activity Measures, Kurtulus Izzetoglu, Dale Richards, Lei Ding, Chen Ling, Ben Willems Jan 2017

Human Performance Assessment: Evaluation And Experimental Use Of Wearable Sensors For Brain Activity Measures, Kurtulus Izzetoglu, Dale Richards, Lei Ding, Chen Ling, Ben Willems

International Symposium on Aviation Psychology - 2017

The emerging wearable human performance monitoring technologies can help evaluate the cognitive status and capacities of the crew in the cockpit as well as those operating ground control stations. Traditionally the use of behavioral measures and subjective metrics has been used to address cognitive factors associated with pilots or operators of safety critical systems. However, the advance in wearable physiologytechnologies could provide additional performance metrics directly driven from brain based measures, potentially validating subjective assessments and ultimately bringing us closer towardsmaintaining safe and effective performance. Furthermore, these techniques may also aidthe design and evaluation of new technologies that are being …

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Student Perceptions On The Usefulness Of Simulation-Based Training, Andrea M. Georgiou, Megan E. Wertheimer, Megan E. Snodgrass Jan 2017

Student Perceptions On The Usefulness Of Simulation-Based Training, Andrea M. Georgiou, Megan E. Wertheimer, Megan E. Snodgrass

International Symposium on Aviation Psychology - 2017

The NASA Flight Operations Center Unified Simulation (FOCUS) lab is a high-fidelity simulation of an airline operations center. Its purpose is to train senior aerospace students to collaborate and communicate effectively with team members in a highly interdependent environment that mirrors the airline industry. Data wascollected from the participants on their perceptions and the lessons learned from running the lab. These results were analyzed across elevensemestersover the last five years. Specifically,the quantitative data captured student perceptions about whether the lab was helpful in preparing them for their future job demands. The qualitative questions assessed their most important lessons learned, the …

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Toward Identifying Risk In Operational Performance Of Atc Procedures, Paul Krois, Julia Pounds Jan 2017

Toward Identifying Risk In Operational Performance Of Atc Procedures, Paul Krois, Julia Pounds

International Symposium on Aviation Psychology - 2017

Managing operationalperformance to reduce risk in the execution of air traffic control (ATC) procedures depends on understanding human performance in relation to patterns established in procedures. Procedures specify performance requirements meant to minimize unintended variation that is outside expected performance criteria and tolerances.We define human performance risk as unintended variation outside theenvelope of applicable procedures.

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The Effect Of Surprise On Upset Recovery Performance, Annemarie Landman, Eric L. Groen, M.M. (René) Van Paassen, Adelbert W. Bronkhorst, Max Mulder Jan 2017

The Effect Of Surprise On Upset Recovery Performance, Annemarie Landman, Eric L. Groen, M.M. (René) Van Paassen, Adelbert W. Bronkhorst, Max Mulder

International Symposium on Aviation Psychology - 2017

Introducing the element of surprise is one of the main challenges in simulator training of in-flight emergencies. In this simulator study, we investigated the differences in performance betweenpredictable and surprising circumstances, in order to obtaininsight into the transferof training between predictable training settings and surprising circumstances in operational practice. This was done bytestingtwenty airline pilots who recovered froman aerodynamic stall in two conditions: one anticipationcondition and one surprise condition. All pilots practiced beforehand using predictable, or non-surprising scenarios. The results show that pilots had significantly more difficulties in adhering to components of the FAA-commissioned recovery template in the surprise condition …

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A Study Of Accidents And Incidents Of Landing On Wrong Runways And Wrong Airports, Linfeng Jin, Edmund Lo Jan 2017

A Study Of Accidents And Incidents Of Landing On Wrong Runways And Wrong Airports, Linfeng Jin, Edmund Lo

International Symposium on Aviation Psychology - 2017

This paper addresses the landings on wrong runways/ at wrong airports happened between 03/26/1992 and 05/08/2012. The visibility, intended landing runway heading, accident landing runway heading, pilots’ flight hours, and the ages of those pilots are studied to test whether they have correlationswith the number of personnel injury, the number of personneldeath, and the degrees of aircraft damage. Some significantfindings are: the most likely angular difference between the supposed landing runwayheadings and wrong runway headings among wrong runway/airport landingsis 180 degrees,and there is a weaknegative correlation between aircraft damage and pilot flight hours. All the data used in the paper …

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Is Rho The Key To Hazardous Weather Avoidance?, William R. Knecht Jan 2017

Is Rho The Key To Hazardous Weather Avoidance?, William R. Knecht

International Symposium on Aviation Psychology - 2017

Current in-cockpit looping Next-Generation Radar (NEXRAD) is inadequate to maintain safe (20 nm) aircraft separation from heavy weather (> 40 dBZ reflectivity). This assertion issupported by mathematical information analysis and an empirical study (Knecht, 2016), as well as numerous previous empirical studies. The current work revisitsthe ecological analysis by examining the putative affordance (rho) specifying when weather-avoidance maneuver should begin, as suggested by General Tau Theory (Lee, 2009).With“gapdefined as the distance between the on-screen aircraft icon and the weather hazard, is specified by the ratio ((dg/dt)/g)(t), the instantaneous gap contraction rate divided by the instantaneous gap size. In current …

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A Case Study Using The Human Factors Analysis And Classification System Framework, Flavio A.C. Mendonca Ph.D., Chenyu Huang Ph.D., Julius Keller Ph.D. Jan 2017

A Case Study Using The Human Factors Analysis And Classification System Framework, Flavio A.C. Mendonca Ph.D., Chenyu Huang Ph.D., Julius Keller Ph.D.

International Symposium on Aviation Psychology - 2017

Aircraft accidents are generally the end result of a number of latent conditions arising in the organizational and managerial sectors. These conditions frequently permit or even motivatethe unsafe acts by the flight crew. The Human Factors Analysis and ClassificationSystem (HFACS) is a system safety tool for the investigation and analysis of underlying human causal factors in aircraft accidents. Using the HFACS framework, four researchers classified the human factors identified by the Brazilian Aeronautical AccidentsInvestigation and Prevention Center (CENIPA) during the investigation of a mishap(PR-AFA) that happened in Brazil in 2014. CENIPA argued that errors and violations by both pilots contributed …

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Usaf Spatial Disorientation Prevention: A Meta-Analytical Human Systems Integration Perspective, Patrick O'Neil, Booz Allen Hamilton, Michael Miller Jan 2017

Usaf Spatial Disorientation Prevention: A Meta-Analytical Human Systems Integration Perspective, Patrick O'Neil, Booz Allen Hamilton, Michael Miller

International Symposium on Aviation Psychology - 2017

Human Systems Integration involvesthe systematic consideration of tradeoffs in system structure or behavior, which affect sevenhuman-centered domains to optimize total system performance and life cycle cost.All too often, HSI is overlooked or poorly practiced, despite the specific directive within DoDI 5000.02 for program managers to plan for and conduct HSI. In the worst of cases, poor consideration of human capabilitiesandlimitations leads to errors, mishaps, and death or serious injury. One such human limitation in aviation is the inability of the pilot to maintain proper spatial orientationduring flight,asmismatches between the stimuli present during flight create an erroneous perception of aircraft attitude …

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Understanding Pilots’ Explanations Of Automation Surprises, Robert Mauro, Loukia Loukopoulou, Julia Trippe Jan 2017

Understanding Pilots’ Explanations Of Automation Surprises, Robert Mauro, Loukia Loukopoulou, Julia Trippe

International Symposium on Aviation Psychology - 2017

Automation surprise may result from inadequate or mistaken “mental models” of the automation (Sarter and Woods, 1995). To study pilots’ mental models of their automation, 202 airline pilots were asked to explain five different events involving unexpected behaviors of aircraft automation. Pilots’ abilities to correctly explain the behavior of the automation differed systematically across the scenarios. The number of complete and correct responses varied from 19% to 86%, depending on the scenario. As the complexity of the automation increased, understanding decreased. Performance on the scenarios was not related to flight experience, automation experience, or source of automation training. But pilots’ …

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Operationalizing The Definition Of Risk As Variability, Julia Pounds, Paul Krois, Barry C. Davis, Melissa Wishy Jan 2017

Operationalizing The Definition Of Risk As Variability, Julia Pounds, Paul Krois, Barry C. Davis, Melissa Wishy

International Symposium on Aviation Psychology - 2017

Maintaining safety requires acknowledgingrisk. However, one’s definition of risk can depend on whether the word is being used in everyday conversation or by safety practitioners or by domain experts. Not having a commonly agreed-upon definition poses problems for those charged with identifying, reducing, and communicating about risk. In an effort to standardize the definition, the International Organization for Standardization defined risk simply as the effect of uncertainty on objectives. Still, this general definition lacks enough specificity to describe uncertainty’s positive or negative effects. Relevant information can reduce uncertainty’s potential effects if it’s not ambiguous, unreliable, incomplete, or unavailable.

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Taking A Closer Look At Flight Crew Handling Of Complex Failures – Ten Case Studies, J. P. Reitsma, L. Fucke, C. Borst, M.M. Van Paassen Jan 2017

Taking A Closer Look At Flight Crew Handling Of Complex Failures – Ten Case Studies, J. P. Reitsma, L. Fucke, C. Borst, M.M. Van Paassen

International Symposium on Aviation Psychology - 2017

Non-normalevents,inparticularsystemfailureswithseriousoperationalimpact arerareinflightoperations.Theseeventsarenotalwayseasytohandle by flight crews.Theaimoftheperformedstudyisto determine whereinthisprocess potential issuesmaylie.Tenincidentreportsarestudied using a newly developed operationalissueanalysisframework.Theframeworkisusedtodetermine whetherandhowthecurrentinterfacescommunicatetheinitialfunctionalimpact andfunctionalimpactdelayedintime.Additionally, resultsfrompilotinterviews arepresentedwhichidentifiedthreephasesofnon-normaleventhandling:fault detection,faultmanagementandstrategic planning. Analysisofthetencases showsthatcurrentalertsystemsaremainly supporting thefirsttwophaseswhile thestrategic planning phase, requiring higherlevelfunctionalinformation integratedintotheoperationalcontextaswellasfailureimpactlaterintime,is relyingalmostentirelyonpilot knowledge andreasoning.

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Investigating Pilot’S Decision Making When Facing An Unstabilized Approach: An Eye-Tracking Study, Maxime Reynal, Frank Rister, Sebastien Scannella, Christopher Wickens, Frederic Hehais Jan 2017

Investigating Pilot’S Decision Making When Facing An Unstabilized Approach: An Eye-Tracking Study, Maxime Reynal, Frank Rister, Sebastien Scannella, Christopher Wickens, Frederic Hehais

International Symposium on Aviation Psychology - 2017

Unstabilized approach has been identified to be a major causal factor of approach-and-landing accidents (e.g. off-runway touchdowns, hard landing, tail-strikes, etc).We conducted an experimentin order to analyze pilots’ performance during such approaches. Ten type-rated, commercial pilots flew each in a B737 full-flight simulator during anunstabilizedapproach at Hamburg airport. The Pilot Flyings’ (PF) eye gazes were collected. The results revealed that half of the pilots persisted in an erroneous landing decision. These latter pilots had higher dwell time on the attitude indicator/flight director whereas the group of pilots who perfomed the go-around exhibited more fixations on the navigation display prior to …

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A Trend Analysis Of Human Factors Issues In Uk Military Aviation, Sarah Weedon, Victoria Cutler, Saskia Revell Jan 2017

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, …

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Nextgen Human Factors Accomplishments And Challenges In The Future, Edmundo A. Sierra Jr. Jan 2017

Nextgen Human Factors Accomplishments And Challenges In The Future, Edmundo A. Sierra Jr.

International Symposium on Aviation Psychology - 2017

The Federal Aviation Administration (FAA), under the Next Generation Air Transportation System (NextGen) program, made significant progress in terms of infrastructure modernization of the National Airspace System (NAS). Development of infrastructure incorporated a broad scope of human performance considerations which this paper discussesat a high level. Sincethe FAA completed much of the infrastructure modernization, focus shiftedto NextGen Transformation so that benefits can be realized. NextGen Transformation involves insuring that FAA systems are seamlessly integrated; that integrated pilot and controller procedures are in place; new roles and responsibilities are defined; and that stakeholders are informed, trained, and adapted to the NextGen …

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Alerts On The Nextgen Flight Deck, Angelia Sebok, Christopher D. Wickens, Brett Walters, Karl Fennell Jan 2017

Alerts On The Nextgen Flight Deck, Angelia Sebok, Christopher D. Wickens, Brett Walters, Karl Fennell

International Symposium on Aviation Psychology - 2017

The future generation of cockpit may substantially change the nature of displays, automation, and their implications for alerting systems. Flight deck automation and information systems imposed by NextGen will create system states that may need to be alerted. New concepts of providing continuous flight information can benefit pilot awareness. Ecological interface displayskeep the operator aware of the system status and constraints, informing the pilot of emerging concerns before an alert is triggered. Continuous auditory and tactile displays support pilot awareness without requiring focused operatorattention. Both approaches improve awareness of system state, but suffer poor operator acceptance. Automation can support pilots …

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Effects Of Simulator Training For Unmanned Aerial Systems In Undergraduate Education, William Weldon, Dr. Brian Kozak Jan 2017

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 …

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Improving Aviation Students’ Teamwork, Problem Solving, Coordination, And Communications Skills During A High-Fidelity Simulation, Evan Lester, Andrea Georgiou, Michael Hein, Glenn Littlepage, Richard Moffett Iii, Paul Craig Jan 2017

Improving Aviation Students’ Teamwork, Problem Solving, Coordination, And Communications Skills During A High-Fidelity Simulation, Evan Lester, Andrea Georgiou, Michael Hein, Glenn Littlepage, Richard Moffett Iii, Paul Craig

International Symposium on Aviation Psychology - 2017

The National Aeronautics and Space Administration (NASA) Flight Operations Center – Unified Simulation (FOCUS) lab at Middle Tennessee State University (MTSU) is a high-fidelity simulation of a regional airline’s flight operations center. During a simulation, a team of senior undergraduate aerospace students mustwork together across disciplines to manage 24 simulated Canadair Regional Jet– 200 aircraft and resolve real-world scenarios. After thesimulation, the lab’s staffevaluates the team’s performance, which is discussed during itsAfter Action Review (AAR). The AAR allows the team to establish strategies and an action plan to improve its performanceand skillsduring subsequent simulations. Overall,as the lab continuously increases in …

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Fatiguing The Force: Using Operational Data To Improve The United States Air Force’S Mission Effectiveness Model, Kelly M. Amaddio, Jennifer P. Howland Jan 2017

Fatiguing The Force: Using Operational Data To Improve The United States Air Force’S Mission Effectiveness Model, Kelly M. Amaddio, Jennifer P. Howland

International Symposium on Aviation Psychology - 2017

Air mobility pilots routinely fly multiple missions spanning several time zones, thereby disrupting their circadian rhythm. As a result, they consistently operate at a sub-optimal performance level. After several fatigue-related accidents, the Air Mobility Command (AMC) Safety Office incorporated the Sleep, Activity, Fatigue, and Task Effectiveness (SAFTE) model into its Aviation Operational Risk Management (AvORM) program to inform aircrew members of their fatigue levels during critical phases of flight. Further analysis indicated that aircrew members experience higher fatigue levels than predicted, which directly reduces flight safety. This study seeks to improve the underlying assumptions within the sleep model to more …

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“Final Results Of Multimethodology Application At Civilian Air Navigation Complex Environments”, Lisia Maria Espinola Da Silva Pacheco Cabral, Marcos Pereira Jan 2017

“Final Results Of Multimethodology Application At Civilian Air Navigation Complex Environments”, Lisia Maria Espinola Da Silva Pacheco Cabral, Marcos Pereira

International Symposium on Aviation Psychology - 2017

The paper addresses the final results of a brazilian doctoral research developed at civilian Air Navigation environments (2011-2014), withpartial results already presented at past ISAPs (2011-2015). The study adopted a qualitative, systemic and anticipatory approach to increase metacognition about Team Resource Management (TRM) Training abilities, focused to Threat and Error Management (TEM) practice, with the main purpose of reinforcingoperational safety as a whole. It used Multimethodology, aiming at identifying, structuring, analyzing and monitoring problems upon participants´ different perspectives - operators and heads of distinct sectors. Multimethodology embraced four phases, yearly, coveringmultiple instrumentsand Theoretic Base, as Conceptual Map, System Thinking and …

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Tracking Workload And Engagement In Air Traffic Control Students Using Electroencephalography Cognitive State Metrics, Kyle A. Bernhardt, Terra Jorgenson, Craig Carlson, Paul Drechsel, Colt Iseminger, Dmitri Poltavski, F Richard Ferraro, Thomas Petros Jan 2017

Tracking Workload And Engagement In Air Traffic Control Students Using Electroencephalography Cognitive State Metrics, Kyle A. Bernhardt, Terra Jorgenson, Craig Carlson, Paul Drechsel, Colt Iseminger, Dmitri Poltavski, F Richard Ferraro, Thomas Petros

International Symposium on Aviation Psychology - 2017

The current study evaluatedthe utility of electroencephalography (EEG) cognitive state to track workload and engagement changes in air traffic control students of differing experience during a Terminal Radar Approach Control (TRACON) scenario. EEG recordings were collected from 47 air traffic control students (27 with high and 20 with low experience) during a five phase TRACON scenario. The scenario fluctuated in the number of aircraft released per phase and the presence or absence of uncontrolled departures/arrivals. EEG workload probabilities werehigher during the phase with uncontrolled departures/arrivals and maximum number of aircraft compared to phases with no uncontrolled arrivals/departures and fewer aircraft. …

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Proposed Scenarios For The Standardization Of The Evaluation Of New Atc Technologies And Procedures, Jerry M. Crutchfield, Angel Millan Jan 2017

Proposed Scenarios For The Standardization Of The Evaluation Of New Atc Technologies And Procedures, Jerry M. Crutchfield, Angel Millan

International Symposium on Aviation Psychology - 2017

This project providesFederal Aviation Administration acquisition program managers and system development integration contractors with a standard set of human-in-the-loop simulation scenarios against which new Air Traffic Control (ATC) technologies and procedurescan be evaluated. Wescripted 24scenarios, eight scenarios for each of three different types of airspace, including a TRACON arrival sector and both low and high altitude en route sectors. The scenarios were scripted to re-create real world airspaces that analyses showedare associated with complex traffic situations. They included representations of severe weather and high traffic load for the purpose of demonstrating the performance of new ATC technologiesand procedures when challenged …

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An Eeg Data Investigation Using Only Artifacts, Chelsey Credlebaugh, Paul Middendorf, Matt Middendorf, Scott Galster Jan 2017

An Eeg Data Investigation Using Only Artifacts, Chelsey Credlebaugh, Paul Middendorf, Matt Middendorf, Scott Galster

International Symposium on Aviation Psychology - 2017

For decades, it has been reportedthat theelectroencephalogram (EEG) isa positive indicator of mental workload. However, EEG signals are easily affected by artifacts.Anartifact mediation approach, called artifact separation, was developed to enable the consumer of the EEG data to decide how to handle artifacts. The current investigation uses onlydata contaminated by artifacts and discards the artifact free data.This was doneto solve a problem associated with data collection.Specifically, in an experiment, EEGelectrodeleadsforT3 and Fzwere swapped where they were connected to the signal acquisition hardware. To facilitate analysis of the data, it was essential to determine whenthe swap occurred. This was accomplished using …

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Cognitive Constraints For Automation On Flight Testing, Diogo Silva Castilho Jan 2017

Cognitive Constraints For Automation On Flight Testing, Diogo Silva Castilho

International Symposium on Aviation Psychology - 2017

The first flight of a new aircraft is still a dangerous event. Despite all simulations and software predictions, test pilots face many unknowns when a prototype leaves the ground for the first time. The cultural celebration of first flights masks the concerns of many stakeholders about the technical challenges of the new equipment. The pilot extensively prepares to react properly to unexpected situations and often bring a new story to tell, but in a time whenremotely piloted and autonomous aircraft fly every day, the question about how to use their technologies to save a test pilot life arises. This study …

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The Neuropsychology Of Sport And Performance, Arthur C. Maerlender Jan 2017

The Neuropsychology Of Sport And Performance, Arthur C. Maerlender

Center for Brain, Biology, and Behavior: Faculty Publications

Neuropsychological theory has been a mainstay for understanding pathology within the brain-behavior context. However, our theories for predicting superior behavior are not as well developed. Sport neuropsychology was developed on the presumption that athletes represent a population in a relatively well-controlled environment for studying brain pathology due to injury. This study of pathology within a high-performance environment has been responsible for identifying the effects of mild traumatic brain injury (mTBI) on individual functioning. Far less attention has been paid to the other end of the performance continuum, and yet, viable brain-behavior hypotheses should hold true across the spectrum of function …

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Validity And Reliability Of Baseline Testing In A Standardized Environment, Kathryn L. Higgins, Todd Caze, Arthur C. Maerlender Jan 2017

Validity And Reliability Of Baseline Testing In A Standardized Environment, Kathryn L. Higgins, Todd Caze, Arthur C. Maerlender

Center for Brain, Biology, and Behavior: Faculty Publications

Objective — The Immediate Postconcussion Assessment and Cognitive Testing (ImPACT) is a computerized neuropsychological test battery commonly used to determine cognitive recovery from concussion based on comparing post-injury scores to baseline scores. This model is based on the premise that ImPACT baseline test scores are a valid and reliable measure of optimal cognitive function at baseline. Growing evidence suggests that this premise may not be accurate and a large contributor to invalid and unreliable baseline test scores may be the protocol and environment in which baseline tests are administered. This study examined the effects of a standardized environment and administration …

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Measurement Of Cortisol In Saliva: A Comparison Of Measurement Error Within And Between International Academic‑Research Laboratories, Jessica L. Calvi, Frances R. Chen, Victoria Brann Benson, Eleanor Brindle, Matt Bristow, Alpana De, Sonja Entringer, Helen Findlay, Christine Heim, Eric A. Hodges, Heiko Klawitter, Sonia Lupien, Holly M. Rus, Jitske Tiemensma, Silvanna Verlezza, Claire-Dominique Walker, Douglas A. Granger Jan 2017

Measurement Of Cortisol In Saliva: A Comparison Of Measurement Error Within And Between International Academic‑Research Laboratories, Jessica L. Calvi, Frances R. Chen, Victoria Brann Benson, Eleanor Brindle, Matt Bristow, Alpana De, Sonja Entringer, Helen Findlay, Christine Heim, Eric A. Hodges, Heiko Klawitter, Sonia Lupien, Holly M. Rus, Jitske Tiemensma, Silvanna Verlezza, Claire-Dominique Walker, Douglas A. Granger

Center for Brain, Biology, and Behavior: Faculty Publications

Objective: Hundreds of scientific publications are produced annually that involve the measurement of cortisol in saliva. Intra- and inter-laboratory variation in salivary cortisol results has the potential to contribute to crossstudy inconsistencies in findings, and the perception that salivary cortisol results are unreliable. This study rigorously estimates sources of measurement variability in the assay of salivary cortisol within and between established international academic-based laboratories that specialize in saliva analyses. One hundred young adults (Mean age: 23.10 years; 62 females) donated 2 mL of whole saliva by passive drool. Each sample was split into multiple- 100 μL aliquots and …

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Patterns Of Referral In High School Concussion Management Programs: A Pilot Study Of Consultants From Different Disciplines, Jonathan Lichtenstein, Kate S. Linnea, Arthur C. Maerlender Jan 2017

Patterns Of Referral In High School Concussion Management Programs: A Pilot Study Of Consultants From Different Disciplines, Jonathan Lichtenstein, Kate S. Linnea, Arthur C. Maerlender

Center for Brain, Biology, and Behavior: Faculty Publications

School-based concussion management programs cover thousands of young athletes, yet there is little in the way of research to assess program processes or outcomes. This study examined the referral patterns of consultants working with ten high school concussion management programs. In addition to the number of referrals made to specialists, other potential outcome variables were explored. The sample included over 5,000 athlete-seasons and 298 concussions managed directly by certified athletic trainers. All programs used computerized neuropsychological testing (both baseline and post injury). Two groups were compared: five programs used a clinical neuropsychologist (NP) as the testing consultant and five used …

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Attention Is Associated With Postural Control In Those With Chronic Ankle Instability, Adam B. Rosen, Nicholas T. Than, William Z. Smith, Jennifer M. Yentes, Melanie L. Mcgrath, Mukul Mukherjee, Sarah A. Myers, Arthur C. Maerlender Jan 2017

Attention Is Associated With Postural Control In Those With Chronic Ankle Instability, Adam B. Rosen, Nicholas T. Than, William Z. Smith, Jennifer M. Yentes, Melanie L. Mcgrath, Mukul Mukherjee, Sarah A. Myers, Arthur C. Maerlender

Center for Brain, Biology, and Behavior: Faculty Publications

Chronic ankle instability (CAI) is often debilitating and may be affected by a number of intrinsic and environmental factors. Alterations in neurocognitive function and attention may contribute to repetitive injury in those with CAI and influence postural control strategies. Thus, the purpose of this study was to determine if there was a difference in attentional functioning and static postural control among groups of Comparison, Coper and CAI participants and assess the relationship between them within each of the groups. Recruited participants performed single-limb balance trials and completed the CNS Vital Signs (CNSVS) computer-based assessment to assess their attentional function. Center …

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