Accession Number:

ADA123843

Title:

Performance of 40- to 50-Year-Old Subjects on a Radar Monitoring Task: The Effects of Wearing Bifocal Glasses and Interpolated Rest Periods on Target Detection Time,

Descriptive Note:

Corporate Author:

FEDERAL AVIATION ADMINISTRATION WASHINGTON DC OFFICE OF AVIATION MEDICINE

Report Date:

1982-04-01

Pagination or Media Count:

14.0

Abstract:

The present study examines the effects of wearing bifocal glasses and interpolated rest periods on the performance of 40- to 50-year-old subjects on a radar monitoring task. The visual display was designed to resemble an air traffic control radar display containing computer-generated alphanumeric symbols. Forty men and women were divided into four equal-sized groups, with each group consisting of one of the four possible combinations of bifocalno-bifocal and restno-rest conditions. All subjects were tested over a 2-hour session. Rest periods a 5-minute break every 30 minutes significantly reduced the performance decrement of 40- to 50-year-old subjects, bringing performance to a level approximating that of 18- to 29-year-old subjects without rest periods. The wearing of bifocal glasses did not contribute to visual strain or somatic discomfort.

Subject Categories:

  • Psychology
  • Human Factors Engineering and Man Machine Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE