摘要: A field study of the ability of subjects to judge depressions in the snow was conducted at a cross-country ski area. Many pairs of depressions were made in the snow and each subject was asked to judge which depression in each pair... 展开 A field study of the ability of subjects to judge depressions in the snow was conducted at a cross-country ski area. Many pairs of depressions were made in the snow and each subject was asked to judge which depression in each pair was deeper. The percentage of correct judgments was significantly greater on an overcast day with yellow goggles than with luminance-matched neutral goggles. (Author) 收起