Testing psychomotor performance during sustained acceleration

Collyer, Stanley C.

doi:10.1037/e480082008-001

Cited by 3 publications

(4 citation statements)

References 10 publications

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“…However, this is not the case since the only effect of changed-Gz that was found for RT is a general increase of RT in high-Gz. Such a slowing of RT during increased levels of acceleration is consistent with previous studies that were conducted in human centrifuges (Collyer 1973).…”

supporting

confidence: 92%

Exaggerated force production in altered Gz-levels during parabolic flight: The role of computational resources allocation

Mierau

Girgenrath

2010

Ergonomics

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The purpose of the present experiment was to examine whether the previously observed exaggerated isometric force production in changed-Gz during parabolic flight (Mierau et al. 2008) can be explained by a higher computational demand and, thus, inadequate allocation of the brain's computational resources to the task. Subjects (n = 12) were tested during the micro-Gz, high-Gz and normal-Gz episodes of parabolic flight. They produced isometric forces of different magnitudes and directions, according to visually prescribed vectors with their right, dominant hand and performed a choice reaction-time task with their left hand. Tasks were performed either separately (single-task) or simultaneously (dual-task). Dual-task interference was present for both tasks, indicating that each task was resources-demanding. However, this interference remained unaffected by the Gz-level. It was concluded that exaggerated force production in changed-Gz is probably not related to inadequate allocation of the brain's computational resources to the force production task. Statement of Relevance: The present study shows that deficient motor performance in changed-Gz environments (both micro-Gz and high-Gz) is not necessarily related to inadequate computational resources allocation, as was suggested in some previous studies. This finding is of great relevance not only for fundamental research, but also for the training and safety of humans operating in changed-Gz environments, such as astronauts and jet pilots.

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confidence: 92%

Exaggerated force production in altered Gz-levels during parabolic flight: The role of computational resources allocation

Mierau

Girgenrath

2010

Ergonomics

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“…We found that tracking performance (as refl ected by the RMSE) decreased by about 50% due to the acceleration to 1 3 G z when compared to the 1-G data, confi rming that motor performance is degraded during acceleration ( 3,4,15,17,27 ). The slight increase in performance in the second 1 G z episode (episode 10) indicates that the 1 G z -related deficit can be somewhat modulated by continuously performing the task.…”

Section: Discussionmentioning

confidence: 61%

“…Performance defi cits in 1 G z might, therefore, result in movement adjustments or additional cognitive effort by the pilot, which could impair their effectiveness. Other studies investigated compensatory tracking, which has similarities to pilot-manipulated missile targeting radar ( 4,15,17 ), and pursuit tracking of randomly moving targets, which is similar to tracking opponents ' aircraft during air combat ( 3,27 ), which is also known to be im-paired by 1 G z . However, tracking studies described only a general decrease of tracking performance in 1 G z , without analyzing specifi c task defi cits.…”

mentioning

confidence: 99%

Motor Performance and Motor Learning in Sustained +3 G<SUB>z</SUB> Acceleration

Guardiera¹,

Schneider²,

Noppe³

et al. 2008

aviat space environ med

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“…Analyzing the psychological aspect of our research, we found that the main cause of the changes in scope of the SRT is the effect of 1 G z acceleration. The shaping of 1 G z in the course of prolonged acceleration allows the trainers the ability to evaluate characteristics such as perceptiveness, reaction speed, and visual-motor coordination ( 12 ).…”

Section: Discussionmentioning

confidence: 99%

Reaction Time in Pilots at Sustained Acceleration of +4.5 G<SUB>z</SUB>

Truszczyński¹,

Wojtkowiak²,

Lewkowicz³

et al. 2013

Aviation, Space, and Environmental Medicine

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Exposure to prolonged acceleration of +4.5 G(z) significantly increases SRT. There was no statistically significant difference in SRT between the pilots with "short" and "long" time exposures. A pilot's SRT during a prolonged +4.5 G(z) exposure could be a reliable indicator of pilot G performance in the fast jet. Deterioration of SRT may be used to predict imminent +G(z) endurance limits between pilots with widely varying endurance abilities.

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Testing psychomotor performance during sustained acceleration

Cited by 3 publications

References 10 publications

Exaggerated force production in altered Gz-levels during parabolic flight: The role of computational resources allocation

Exaggerated force production in altered Gz-levels during parabolic flight: The role of computational resources allocation

Motor Performance and Motor Learning in Sustained +3 G<SUB>z</SUB> Acceleration

Reaction Time in Pilots at Sustained Acceleration of +4.5 G<SUB>z</SUB>

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