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Journal of Human Performance in Extreme Environments

Articles 1 - 15 of 15

Full-Text Articles in Social and Behavioral Sciences

Using Behavior Sequence Analysis To Study Teams During Long- Duration Isolation And Confinement, Andres Käosaar, Dr. Nathan Smith, Dr. David A. Keatley, Pranav Ambhorkar, Dr. Moritz Von Looz, Konstantinos Konstantinidis Jul 2023

Using Behavior Sequence Analysis To Study Teams During Long- Duration Isolation And Confinement, Andres Käosaar, Dr. Nathan Smith, Dr. David A. Keatley, Pranav Ambhorkar, Dr. Moritz Von Looz, Konstantinos Konstantinidis

Journal of Human Performance in Extreme Environments

With a renewed impetus and appetite for human space exploration, both government-funded agencies and private companies are focusing on longer and farther crewed missions into the solar system. Such space missions rely on highly interdependent teams living and working together in isolated, confined, and extreme (ICE) environments. Understanding the behavioral patterns of teams in ICE environments is, thus, paramount for the future success of such missions. Due to the complexity of studying ICE teams, several researchers have called for methodological innovations to advance knowledge in this area. In the current research, a proof-of-concept methodological approach is introduced that provides a …

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Stressors, Coping Mechanisms, And Uplifts Of Commercial Fishing In Alaska: A Qualitative Approach To Factors Affecting Human Performance In Extreme Environments, Jennifer Pickett, Joeri Hofmans Dec 2019

Stressors, Coping Mechanisms, And Uplifts Of Commercial Fishing In Alaska: A Qualitative Approach To Factors Affecting Human Performance In Extreme Environments, Jennifer Pickett, Joeri Hofmans

Journal of Human Performance in Extreme Environments

We depict the physical and psychological challenges of commercial fishing in Alaska as well as the uplifts, or positive experiences fishermen report. We describe an array of coping methods that are utilized during the fishing season and the contexts in which they occur. Our findings help clarify the link between human behavior, stressors, coping mechanisms employed, and uplifts experienced when working in extreme conditions. By doing this, we provide a better understanding of the effects that severe conditions have on wellbeing, such as working for long periods of time in cramped quarters in remote, extreme environments, and how Alaskan fishermen …

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Human Adaptability For Deep Space Missions: An Exploratory Study, Paul T. Bartone, Robert R. Roland, Jocelyn V. Bartone, Gerald P. Krueger, Albert A. Sciarretta, Bjorn Helge Johnsen Dec 2019

Human Adaptability For Deep Space Missions: An Exploratory Study, Paul T. Bartone, Robert R. Roland, Jocelyn V. Bartone, Gerald P. Krueger, Albert A. Sciarretta, Bjorn Helge Johnsen

Journal of Human Performance in Extreme Environments

The present qualitative study conducts in-depth interviews with astronauts and other subject matter experts in order to shed light on human adaptability in extreme environments. Deep space travel will entail a range of highly stressful conditions to which astronauts must adapt. Feelings of isolation will be increased, as the space traveler is farther from Earth for longer periods of time. Daily life will take place in small and confined areas, for durations extending into years. The dangers of the extreme environment of space are ever-present, and failure of critical equipment or components can lead to death. Astronauts will need to …

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Developing Wildland Firefighters’ Performance Capacity Through Awareness-Based Processes: A Qualitative Investigation, Alexis L. Waldron, Vicki Ebbeck May 2015

Developing Wildland Firefighters’ Performance Capacity Through Awareness-Based Processes: A Qualitative Investigation, Alexis L. Waldron, Vicki Ebbeck

Journal of Human Performance in Extreme Environments

Wildland firefighting is environmentally and socially a risky and complex occupation. Although much attention has been given to understanding the physical components in fighting wildland fire, much less time has been devoted to understanding and developing the capacity of wildland firefighters to handle the dynamic pressures of the physical and social environments. The purpose of this study was to explore the receptiveness, utility, effectiveness, and potential improvements for a mindful and self-compassionate awareness program developed for the wildland fire environment. The program was based on the use of a conceptual tool to refocus awareness and move self-compassionately through key aspects …

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Summary Of The Performance Effects Of Sustained Operations, Valerie Gawron May 2015

Summary Of The Performance Effects Of Sustained Operations, Valerie Gawron

Journal of Human Performance in Extreme Environments

Sustained operations missions are performed in diverse environments. These environments include military command and control, process control, medical practice, and security surveillance. Research on the related fatigue effects of sustained operations is reviewed for each of these diverse environments. For military surge operations, both ground and airborne command and control operators show similar decrements in visual performance as a function of sleep loss. Other decrements include increased number of errors in vigilance tasks and reaction time tasks. In process control experiments, longer shifts resulted in more variance in reaction time to grammatical reasoning tasks. Night shift was associated with slower …

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Human Factors In High-Altitude Mountaineering, Christopher D. Wickens, John W. Keller, Christopher Shaw May 2015

Human Factors In High-Altitude Mountaineering, Christopher D. Wickens, John W. Keller, Christopher Shaw

Journal of Human Performance in Extreme Environments

We describe the human performance and cognitive challenges of high altitude mountaineering. The physical (environmental) and internal (health) stresses are first described, followed by the motivational factors that lead people to climb. The statistics of mountaineering accidents in the Himalayas and Alaska are then described. We then present a detailed discussion of the role of decision-making biases in mountaineering mishaps. We conclude by discussing interpersonal factors, adaptation, and training issues.

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Robust Resilience: Metaphor And Meaning In Assessing System Performance Ranges, Barrett S. Caldwell Dec 2013

Robust Resilience: Metaphor And Meaning In Assessing System Performance Ranges, Barrett S. Caldwell

Journal of Human Performance in Extreme Environments

The current emphasis on Resilience Week and the International Symposium on Resilient Cognitive Systems highlights a growing awareness of the importance of designing and operating engineering systems under a variety of environmental conditions and in response to dynamic events. Although there has been considerable confusion and drift in the use of the term, ‘‘resilience’’ as a concept dates back to dynamic systems study of complex ecological systems in the 1970s. This original definition relates clearly to quantitative metrics that link also to statistical process control techniques describing system performance as affected by external, ‘‘assignable’’ causes. This paper discusses important elements …

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Robust Flight Deck Systems: Harnessing The Synergistic Power Of The Crew, Michael J. Stasio Dec 2013

Robust Flight Deck Systems: Harnessing The Synergistic Power Of The Crew, Michael J. Stasio

Journal of Human Performance in Extreme Environments

Robust flight decks are possible in both normal and novel operations. Existing crew resource and error management programs can improve team-centered resilience with Oshry’s organization development (OD) principles. The need on the flight deck is to diminish the invisible behavioral gap between espoused theory and theory-in-use by balancing Oshry’s four basic elements that make up robust human systems—differentiation, homogenization, integration, and individuation. This low-cost OD vision is offered as a guide for organizations to tailor existing aircrew recurrent training modules. Assessment and diagnosis measures are recommended for continuous improvement, so this OD framework includes adaptive feedback interventions and soft-skills behavioral …

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Is Performance Variability Necessary? A Qualitative Study On Cognitive Resilience In Forestry Work, Jennifer M. Colman, Heather K. Kahle, Eder Henriqson Dec 2013

Is Performance Variability Necessary? A Qualitative Study On Cognitive Resilience In Forestry Work, Jennifer M. Colman, Heather K. Kahle, Eder Henriqson

Journal of Human Performance in Extreme Environments

In forestry work, conditions exist and develop that are complex, unpredictable, and highly consequential and therefore cannot be handled entirely by following static work procedures. Cognitive adjustments are necessary. The objective of this research was to determine whether performance (cognitive) variability is actually necessary to safely fell trees in the coastal region of British Columbia, Canada. In this paper two perspectives were contrasted: the traditional view of safety and the resilience perspective. A collection of empirical evidence established that while safe work procedures provide a good foundation, it is individual performance variability shaped by experience and ‘‘know-how’’ that guides the …

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Review Of Spacewalker, Barrett Caldwell Nov 2013

Review Of Spacewalker, Barrett Caldwell

Journal of Human Performance in Extreme Environments

Since its founding over 15 years ago, JHPEE has always had a focal emphasis on human performance in space. Thus, it is no surprise that we would want to highlight a new book from astronaut Jerry L Ross, who has set records for launches and spacewalks with NASA. However, there is always more to an astronaut biography, as we have learned since the days of We Seven. Our interest in an astronaut’s life and experiences helps us to see the answers to four different questions, which tell us different things about this most unique of human performance environments.

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Enhanced Simulation Of Partial Gravity For Extravehicular Activity, Steven P. Chappell, David M. Klaus Jul 2013

Enhanced Simulation Of Partial Gravity For Extravehicular Activity, Steven P. Chappell, David M. Klaus

Journal of Human Performance in Extreme Environments

Prior studies of human locomotion under simulated partial gravity have hypothesized that energy expenditure is increased in lunar gravity, as compared to that of Mars. This may be due to subjects having to expend excess energy for stability and posture control in the lower gravitational field. The physiological cause of this suspected ‘‘wasted energy’’ during locomotion in low gravity remains to be determined. This paper outlines factors to be considered for these analyses and enhancements to the simulation method that will enable assessment of inertial stability and associated metabolic cost. A novel simulation technique is proposed for assessing the effects …

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Changes In Eeg During Ultralong Running, M. Doppelmayr, P. Sauseng, H. Doppelmayr, I. Mausz Oct 2012

Changes In Eeg During Ultralong Running, M. Doppelmayr, P. Sauseng, H. Doppelmayr, I. Mausz

Journal of Human Performance in Extreme Environments

There are only a few studies using human electroencephalograms (EEGs) to investigate bioelectrical changes in the brain during exercise (running or cycling). These studies report an increase in EEG alpha amplitude during and immediately after exercise. However, only exercises within a relatively short time interval of approximately 1 hour have been investigated. Thus, we focussed on long-lasting exercise and report three single case studies, performed on the same participant, during extended exercise and under different thermal conditions. EEG was recorded during a 12-, 24-, and 56-hour ultramarathon. The 56-hour race was performed under extreme thermal stress in Death Valley, CA, …

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Perceived Motion Sickness And Effects On Performance Following Naval Transportation, Joakim Dahlman, Torbjörn Falkmer, Fredrik Forsman Oct 2012

Perceived Motion Sickness And Effects On Performance Following Naval Transportation, Joakim Dahlman, Torbjörn Falkmer, Fredrik Forsman

Journal of Human Performance in Extreme Environments

The present study focused on the relationship between previous experiences of, and rated susceptibility to, motion sickness and its correlation to subjective measurements and actual performance. Performance was measured in terms of shooting precision among 23 participants from the Swedish amphibious corps after transportation in a small amphibious boat, while sealed off with no reference to the outside world. Self-rating questionnaires were collected regarding perceived performance and presence of motion sickness. The physiological status perceived by each participant was related to factors that generally indicate early stages of motion sickness, which also were correlated to deficits in performance. It was …

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Investigating Visual Alerting In Complex Command And Control Environments, Jacquelyn M. Crebolder Oct 2012

Investigating Visual Alerting In Complex Command And Control Environments, Jacquelyn M. Crebolder

Journal of Human Performance in Extreme Environments

A series of experiments was conducted to investigate visual alerting in complex command and control environments, where operators must use several displays to perform tasks. In the first experiment, the speed of detection of two alerts, one in the form of a short bar and the other a border surrounding the perimeter of the display, were compared under flashing and static states. Findings showed that bar alerts were detected faster than border alerts and that adding a flashing attribute did not provide a benefit. The second study monitored which display participants were attending to when the alert appeared, and the …

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Sleep Disturbance Implications For Modern Military Operations, Douglas R. Lindsay, Jeff Dyche Oct 2012

Sleep Disturbance Implications For Modern Military Operations, Douglas R. Lindsay, Jeff Dyche

Journal of Human Performance in Extreme Environments

As is evident from current military operations that are happening around the globe (e.g., Iraq, Afghanistan, Korea), today’s military is being called on in numerous new and innovative ways (e.g., Foster & Lindsay, 2011). One of the primary forces behind this change is the pervasiveness of enhanced information systems. In fact, the concept of networked warfare is the basis of operations and doctrine for the armed forces (Wesensten, Belenky, & Balkin, 2005). With respect to Admiral Cebrowski’s quote, it appears that this notion of information in warfare is going to continue to influence the way that we approach and conduct …

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