Abstract：
:We have examined the ability of observers to determine the direction of movement of a variety of colored plaid patterns. When the two plaid components are of unequal spatial frequency or of unequal luminance or chromatic contrast, observers judge the direction of movement incorrectly. These errors are correlated with a misjudgement of the speeds of the two components. Our results provide support for an initial decomposition into oriented components followed by a subsequent component-to-pattern recombination of moving equiluminant and colored plaids. At equal multiples of threshold contrast a moving luminance grating is about 8 times more powerful than a moving equiluminant grating in determining the apparent direction of motion of a plaid. When both are present, luminance and color do not interact linearly. Color and motion must be processed in parallel in at least partially separate pathways.
journal_name
Vision Resjournal_title
Vision researchauthors
Kool FL,De Valois KKdoi
10.1016/0042-6989(92)90182-isubject
Has Abstractpub_date
1992-04-01 00:00:00pages
657-68issue
4eissn
0042-6989issn
1878-5646pii
0042-6989(92)90182-Ijournal_volume
32pub_type
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