THE SPEED AND ACCURACY OF DISCRIMINATING DIFFERENCES IN SINGLE AND COMPOUND ASPECTS OF VISION.
Human engineering rept.
MOUNT HOLYOKE COLL SOUTH HADLEY MASS PSYCHOPHYSICAL RESEARCH UNIT
Pagination or Media Count:
CONCLUSIONS People discriminate the compound hue and shape faster than any other compound, whether or not other aspects vary in a given group of symbols. Hue and area, and hue and brilliance require very little more discrimination time than hue and shape. It would seem that hue is an aspect that consistently forms compounds that are quickly discriminated. Compounds are, in general, discriminated more accurately than single aspects. This difference in accuracy, however, is too small to be significant. There is no evidence that compounds are discriminated significantly faster than single aspects. Good single aspects such as hue or shape would probably be better than a compound of two aspects in ordinary coding situations. There are indications that the speed of discriminating a compound is determined by the speed of discriminating the faster of the two aspects in that compound. Author
- Human Factors Engineering and Man Machine Systems