Pilot Physiological Factors

concentrate on relative movement detected in the peripheral vision area. systematically focus on different segments of the sky for short intervals. continuously scan the sky from right to left.

All traffic or terrain features appear to be farther away than their actual distance. Haze causes the eyes to focus at infinity. The eyes tend to overwork in haze and do not detect relative movement easily.

Aerosinusitis. Aerotitis. Hyperventilation.

An extremely slow rate of breathing and insufficient oxygen. Emotional tension, anxiety, or fear. The excessive consumption of alcohol.

clear days. hazy days. cloudy nights.

slowing the breathing rate, breathing into a bag, or talking aloud. increasing the breathing rate in order to increase lung ventilation. closely monitoring the flight instruments to control the airplane.

peripheral vision by scanning small sectors and utilizing off-center viewing. a series of short, regularly spaced eye movements to search each 10-degree sector. regularly spaced concentration on the 3-, 9-, and 12-o’clock positions.

easily by an experienced pilot. by an ability to overcome sleep deprivation. as being in an impaired state.

Aerosinusitis. Hyperventilation. Aerotitis.

slowing the breathing rate, breathing into a paper bag, or talking aloud. increasing the breathing rate in order to increase lung ventilation. breathing spontaneously and deeply or gaining mental control of the situation.