Abstract：
:Two protanopes, two deuteranopes, and two normal subjects named 424 OSA Uniform Color Scales samples using single-word color terms of their choice under three different experimental conditions. When viewing a stimulus field subtending about 4 deg, the performance of the dichromats revealed a substantial ability to discriminate colors along the red-green axis. When the stimuli were limited to the central fovea, or when rods were excluded with a bleach, dichromats could no longer categorize colors in the red-green dimension. The different conditions did not affect the performance of the normals. The results suggest that rods contribute signals used by dichromats, along with lightness cues, to help discriminate and categorize surface colors.
journal_name
Vision Resjournal_title
Vision researchauthors
Montag ED,Boynton RMdoi
10.1016/0042-6989(87)90129-5subject
Has Abstractpub_date
1987-01-01 00:00:00pages
2153-62issue
12eissn
0042-6989issn
1878-5646pii
0042-6989(87)90129-5journal_volume
27pub_type
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