The effect of hypoxia on reaction time to visual psychomotor task.

Completed

• Conditions: Oxygen shortage in body tissue; Decrease in partial pressure of oxygen; hypobaric hypoxia

• Registration Number: NL-OMON50992
• Lead Sponsor: Royal Netherlands Air Force, Centre for Man in Aviation

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Last Update Posted: 19 August 2024

Recruitment & Eligibility

• Status: Completed
• Sex: Not specified
• Target Recruitment: 20

Inclusion Criteria

Pilots of the Royal Netherlands Air Force
Male
Age 22-55
The pilots need to pass their mandatory medical examination and be declared
fit to fly.

Exclusion Criteria

Pilots exposed to altitudes higher than 8000 feet for a period longer than one
week in the three months prior to the research.

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
<p>The primary study parameter in this study is reaction time. Reaction time (in<br /><br>sec) will be measured from the moment a stimulus is presented till the<br /><br>participants press a right or left button</p><br>

Secondary Outcome Measures

Name	Time	Method
<p>The following scondary study aparemeters will be measured:<br /><br><br /><br>1. The following response parameters will be measured during each of the visual<br /><br>tasks: 1. hits - correct identification of targets, 2. misses * error or<br /><br>omissions of target , 3. false alarms * error of commission and 4. anticipation<br /><br>- responses less than 200 ms following the onset of the stimulus.<br /><br><br /><br>2. Dwell time - Total duration of fixations made in the area of interest.<br /><br>Fixation is defined as the time between the end of one saccade and the<br /><br>beginning of the next one. Only fixations longer than 90 ms will be used in the<br /><br>analysis.<br /><br><br /><br>3. The participants* self-perceived state of alertness. The state of alertness<br /><br>will be assessed at the beginning and end of each test using the 7-point scale<br /><br>Sanford Sleepiness Scale (SSS).</p><br>