scholarly journals Fatigue, Emotion, and Cognitive Performance in Simulated Long-Duration, Single-Piloted Flight Missions

2021 ◽  
Vol 92 (9) ◽  
pp. 710-719
Author(s):  
Eduardo Rosa ◽  
Mikael Gronkvist ◽  
Roger Kolegard ◽  
Nicklas Dahlstrom ◽  
Igor Knez ◽  
...  
Keyword(s):  
Cognitive Performance ◽  
Air Force ◽  
Cognitive Tasks ◽  
Emotional States ◽  
Fatigue Index ◽  
Fighter Aircraft ◽  
Mission Duration ◽  
Fatigue Development ◽  
Long Duration ◽  
Negative Emotional State

BACKGROUND: Fatigue of air force pilots has become an increasing concern due to changes in mission characteristics. In the current study we investigated fatigue, emotions, and cognitive performance in a simulated 11-h mission in the 39 Gripen fighter aircraft. METHODS: A total of 12 subjects were evaluated in a high-fidelity dynamic flight simulator for 12 consecutive hours. Perceived fatigue was measured by the Samn-Perelli Fatigue Index (SPFI). Emotions were assessed with the Circumplex Affect Space. Cognitive performance was assessed by five cognitive tasks. RESULTS: Significant increase in self-reported fatigue, general decrease in two positive emotional states, as well increase of one negative emotional state occurred after approximately 7 h into the mission. Self-reported fatigue negatively correlated with enthusiasm and cheerfulness (r 0.75; 0.49, respectively) and positively correlated with boredom and gloominess (r 0.61; r 0.30, respectively). Response time in the low-order task negatively correlated with enthusiasm, cheerfulness and calmness (r 0.44; r 0.41; r 0.37, respectively) and positively correlated with boredom and anxiousness (r 0.37; r 0.28, respectively). Mission duration had an adverse impact on emotions in these environmental conditions, particularly after 7 h. DISCUSSION: These results contribute to the understanding of fatigue development in general and of emotion-cognition relationships. These findings emphasize that both emotional states and the type of cognitive tasks to be performed should be considered for planning long-duration missions in single-piloted fighter aircrafts as to increase the probability of missions success. Rosa E, Gronkvist M, Kolegard R, Dahlstrom N, Knez I, Ljung R, Willander J. Fatigue, emotion, and cognitive performance in simulated long-duration, single-piloted flight missions. Aerosp Med Hum Perform. 2021; 92(9):710719.

Effects of Fatigue on Cognitive Performance in Long-Duration Simulated Flight Missions

2020 ◽  
Vol 10 (2) ◽  
pp. 82-93
Author(s):  
Eduardo Rosa ◽  
Ola Eiken ◽  
Mikael Grönkvist ◽  
Roger Kölegård ◽  
Nicklas Dahlström ◽  
...  
Keyword(s):  
Executive Functions ◽  
Task Performance ◽  
Cognitive Performance ◽  
Cognitive Tasks ◽  
Fatigue Index ◽  
Fighter Aircraft ◽  
Long Duration ◽  
Metacognitive Accuracy

Abstract. Fighter pilots may be exposed to extended flight missions. Consequently, there is increasing concern about fatigue. We investigated the effects of fatigue and cognitive performance in a simulated 11-hr mission in the 39 Gripen fighter aircraft. Five cognitive tasks were used to assess cognitive performance. Fatigue was measured with the Samn–Perelli Fatigue Index. Results showed that performance in the non-executive task degraded after approximately 7 hr. Fatigue ratings showed a matching trend to the performance in this task. Performance in tasks taxing executive functions did not decline. We interpreted that fatigue can be overridden by increased attentional effort for executive tasks but not for non-executive components of cognition. Participants underestimated their performance and metacognitive accuracy was not influenced by fatigue.

Alcohol Dependence Conceptualized as a Stress Disorder

2019 ◽  
pp. 198-220
Author(s):  
Leandro F. Vendruscolo ◽  
George F. Koob
Keyword(s):  
Prefrontal Cortex ◽  
Alcohol Use ◽  
Alcohol Dependence ◽  
Glucocorticoid Receptors ◽  
Critical Role ◽  
Emotional States ◽  
Brain Circuits ◽  
Negative Emotional State ◽  
Alcohol Alcohol

Alcohol use disorder is a chronically relapsing disorder that involves (1) compulsivity to seek and take alcohol, (2) difficulty in limiting alcohol intake, and (3) emergence of a negative emotional state (e.g., dysphoria, anxiety, irritability) in the absence of alcohol. Alcohol addiction encompasses a three-stage cycle that becomes more intense as alcohol use progresses: binge/intoxication, withdrawal/negative affect, and preoccupation/anticipation. These stages engage neuroadaptations in brain circuits that involve the basal ganglia (reward hypofunction), extended amygdala (stress sensitization), and prefrontal cortex (executive function disorder). This chapter discusses key neuroadaptations in the hypothalamic and extrahypothalamic stress systems and the critical role of glucocorticoid receptors. These neuroadaptations contribute to negative emotional states that powerfully drive compulsive alcohol drinking and seeking. These changes in association with a disruption of prefrontal cortex function that lead to cognitive deficits and poor decision making contribute to the chronic relapsing nature of alcohol dependence.

The Impact of Cognitive Load on Volitional Running

2016 ◽  
Vol 60 (1) ◽  
pp. 1179-1183 ◽  
Author(s):  
Megan J. Blakely ◽  
Kyle Wilson ◽  
Paul N. Russell ◽  
William S. Helton
Keyword(s):  
Physical Activity ◽  
Cognitive Load ◽  
Cognitive Performance ◽  
Cognitive Task ◽  
High Load ◽  
Interactive Effects ◽  
Cognitive Tasks ◽  
Running Speed ◽  
Original Experiment ◽  
The Impact

The effects of physical activity on cognition and the effects of cognitive load on physical activity are complex. Both the nature of the physical activity and cognitive task may influence the interactive effects of performing a physical task while also performing a cognitive task. In a previous study examining the impact of increasing cognitive load on outdoor running speed and the impact of outdoor running on cognitive performance, Blakely et al. (2015) found running speed decreased as cognitive load increased. They also found that the impact of running itself on cognitive performance occurred when the cognitive task was itself demanding (high cognitive load). In the current study we expanded on this previous research by improving the experimental task to rule out peripheral sensory, not central or executive, interference and by incorporating heart rate measures and VO2 max estimates. Twelve runners completed five conditions, two seated cognitive tasks (one low load and one high load), two dual running cognitive tasks and one run only. Results were similar to the original experiment, as the cognitive task became more difficult, voluntary running speed decreased. Also the effects of running on cognitive performance (counting) were found only when the cognitive task was high load.

Cognitive Performance During Long-Duration Vibration

1982 ◽  
Author(s):  
Richard W. Shoenberger ◽  
C. S. Harris
Keyword(s):  
Cognitive Performance ◽  
Long Duration

When Is It Safe to Fly or Travel to High Altitude?

2019 ◽  
pp. 175-175
Author(s):  
David L. Brody
Keyword(s):  
Cognitive Function ◽  
High Altitude ◽  
Cognitive Performance ◽  
Air Force ◽  
Moderate Altitude ◽  
Impaired Balance

Most commercial airplanes are pressurized to the equivalent of about 7000 to 8000 feet. U.S. Air Force researchers have shown that uninjured people experience very little change in cognitive function or symptoms at this altitude, but that this is not the case after concussion. Symptoms and deficits that had resolved can come back at altitude, most notably headaches, slowing of cognitive performance, and impaired balance. Inform the patient and family about this risk and then let them make their own decisions about whether it is worth it. No evidence of permanent harm from flying or traveling to moderate altitude in concussion patients exists, but it has not been carefully studied.

Thunder Versus Lightning: A Performance and Cost Analysis of the A-10 “Warthog” Versus the F-35 Joint Strike Fighter

2019 ◽  
Vol 10 (3) ◽  
pp. 434-468
Author(s):  
John Green ◽  
Richard Zeckhauser
Keyword(s):  
Quantitative Analysis ◽  
Service Life ◽  
Cost Analysis ◽  
Air Force ◽  
Fighter Aircraft ◽  
Low Intensity ◽  
Effectiveness Analysis ◽  
Critical Requirement ◽  
Cas A ◽  
The U.S

AbstractFor decades, the U.S. Air Force has contemplated replacing the A-10 Thunderbolt II “Warthog” with a newer fighter aircraft. However, a quantitative analysis comparing the Warthog’s performance and costs with those of its intended replacement, the F-35 Lightning II Joint Strike Fighter, shows that retiring the Warthog would be operationally unsound and fiscally imprudent. The rationale for the replacement is that it would increase airpower capability while controlling costs. That rationale does not withstand scrutiny. An effectiveness analysis based on results from a survey of joint terminal attack controllers indicates that the A-10 vastly outperforms the F-35 in providing close-air support (CAS), a critical requirement for future conflicts against terrorists and insurgents. A cost analysis demonstrates that replacing the A-10 before its service life ends in 2035 would cost at least $20.9 billion. The replacement plan would waste substantial resources and seriously impair U.S. military capabilities. Given that constrained future budgets and low-intensity conflicts requiring precision CAS can be expected, the U.S. air fleet should include the A-10 Thunderbolt II.

scholarly journals Differential MR/GR Activation in Mice Results in Emotional States Beneficial or Impairing for Cognition

2007 ◽  
Vol 2007 ◽  
pp. 1-11 ◽  
Author(s):  
Vera Brinks ◽  
Maaike H. van der Mark ◽  
E. Ron de Kloet ◽  
Melly S. Oitzl
Keyword(s):  
Mental Health ◽  
Stress Response ◽  
Cognitive Functioning ◽  
Cognitive Performance ◽  
Emotional States ◽  
High Affinity ◽  
Mediated Effects ◽  
Additional Constant ◽  
Hole Board ◽  
The Brain

Corticosteroids regulate stress response and influence emotion, learning, and memory via two receptors in the brain, the high‐affinity mineralocorticoid (MR) and low‐affinity glucocorticoid receptor (GR). We test the hypothesis that MR- and GR-mediated effects interact in emotion and cognition when a novel situation is encountered that is relevant for a learning process. By adrenalectomy and additional constant corticosterone supplement we obtained four groups of male C57BL/6J mice with differential chronic MR and GR activations. Using a hole board task, we found that mice with continuous predominant MR and moderate GR activations were fast learners that displayed low anxiety and arousal together with high directed explorative behavior. Progressive corticosterone concentrations with predominant action via GR induced strong emotional arousal at the expense of cognitive performance. These findings underline the importance of a balanced MR/GR system for emotional and cognitive functioning that is critical for mental health.

THE EFFECT OF EMOTIONAL STATE ON WAITING IN DECISION MAKING

2008 ◽  
Vol 36 (5) ◽  
pp. 591-602 ◽  
Author(s):  
Ya-Chung Sun ◽  
Shih-Chia Wu
Keyword(s):  
Decision Making ◽  
Experimental Study ◽  
Emotional State ◽  
Emotional States ◽  
Extra Time ◽  
New Information ◽  
Negative Emotional State ◽  
Current Mood ◽  
The Relationship ◽  
Do So

Previous research has indicated that many people often take extra time to consider existing information. They do so possibly in order to acquire more information, or even to “wait” in the hope that new information may be forthcoming before they make a decision. However, recent studies have provided scant information about how waiting affects a person's choice given different emotional states. In this paper, an experimental study was carried out to demonstrate and explain the relationship between waiting and a person's choice. Results show that when conditions are certain, more people choose to wait – when they are in a positive emotional state – in order to maintain their current mood. However, under either certain or uncertain conditions, when people are in a negative emotional state they prefer to take immediate action rather than wait. The causes and implications of this phenomenon are discussed in relation to the existing literature on emotions and choice.

scholarly journals Unhappiness, health and cognitive ability in old age

2007 ◽  
Vol 38 (2) ◽  
pp. 229-236 ◽  
Author(s):  
P. Rabbitt ◽  
M. Lunn ◽  
S. Ibrahim ◽  
M. Cobain ◽  
L. McInnes
Keyword(s):  
Life Satisfaction ◽  
Cognitive Performance ◽  
Old Age ◽  
Economic Advantage ◽  
Drop Out ◽  
Cognitive Tasks ◽  
Mental Ability ◽  
Age Related ◽  
New Finding ◽  
Age Related Cognitive Decline

BackgroundTo test whether scores on depression inventories on entry to a longitudinal study predict mental ability over the next 4–16 years.MethodAssociations between scores on the Beck Depression Inventory and on tests of intelligence, vocabulary and memory were analysed in 5070 volunteers aged 49–93 years after differences in prescribed drug consumption, death and drop-out, sex, socio-economic advantage and recruitment cohort effects had also been considered.ResultsOn all cognitive tasks Beck scores on entry, even in the range 0–7 indicating differences in above average contentment, affected overall levels of cognitive performance but not rates of age-related cognitive decline suggesting effects of differences in life satisfaction rather than in depression.ConclusionsA new finding is that, in old age, increments in life satisfaction are associated with better cognitive performance. Implications for interpreting associations between depression inventory scores and cognitive performance in elderly samples are discussed.

Individual Differences in Reported Visual Imagery and Cognitive Performance

1978 ◽  
Vol 46 (2) ◽  
pp. 451-458 ◽  
Author(s):  
Stuart J. McKelvie ◽  
Mary M. Rohrberg
Keyword(s):  
Individual Differences ◽  
Cognitive Performance ◽  
Visual Imagery ◽  
Visual Space ◽  
The Other ◽  
Cognitive Tasks ◽  
Visual Images ◽  
Abstract Reasoning ◽  
Numerical Ability ◽  
And Control

Selected on the basis of their scores on the Vividness of Visual Imagery Questionnaire, 16 High Visualizers and 14 Low Visualizers (equally divided by sex) completed various cognitive tasks thought to involve visual (Space Relations, Watch Rotation) and non-visual (Verbal Reasoning, Abstract Reasoning, Numerical Ability) processes. Although Low Visualizers (particularly males) were superior to High Visualizers in Numerical Ability, both groups performed equally well on the other tests. Since correlational analyses indicated that scores on the vividness questionnaire and the Gordon Controllability of Imagery Questionnaire were not independent, particularly for females, it was suggested that questionnaires ought to be developed better to differentiate the abilities to generate and control visual images.

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