Learn More
Hue matching was used to obtain measures of Bezold-Brucke hue shifts with very brief flashes (17 msec) at ten wavelengths and several illuminance levels. Results were generally similar to those obtained by Purdy (1931) with uncontrolled stimulus duration. but there were also important differences. These were: the locations of invariant hues; the direction(More)
SUMMARY The Sarbanes-Oxley Act (2002) required the U.S. Comptroller General to study the potential effects of requiring the mandatory rotation of audit firms. The General Accounting Office (GAO) concludes in its recently released study of mandatory audit firm rotation that " …mandatory audit firm rotation may not be the most efficient way to strengthen(More)
Unique hue loci were obtained from three observers at several intensity levels with a I-set stimulus flash and a 17 msec stimulus flash. With the one-second stimulus the three spectral unique hues were approximately invariant but unique red was not. With the I7 msec stimulus none of the unique hues is strictly invariant. These results are discussed in terms(More)
An alternation method of color matching was used to obtain a series of extended Rayleigh matches from several deutan color deficients with varying degrees of color discrimination. With large stimulus fields there were differences in the matches made by observers with good color discrimination and the matches made by observers with poor color discrimination.(More)
  • 1