If trichromacy is correct that result cannot as the authors claim ".
An even more direct example of the author's confusion regarding trichromacy and prime colors is their statement in section 4.
Hence the conclusion of the authors' that the study failed to show any of the hypothesized effect of spectrum or the pRGC's on brightness perception or that the results are consistent with trichromacy remains equivocal.
The major challenge to the hypothesis that trichromacy evolved for finding fruit emerged in 1996, when Gerald H.
He and Lucas reported the data in 2001, claiming confirmation that trichromacy originally evolved for picking out the most nutritious leaves and not for finding ripe fruit.
LOSING BY A NOSE Even as vision researchers wrestle over why trichromacy evolved, other investigators have linked its development in primates to a decline in another sensory system: smell.
That timing approximately coincides with the appearance of the third opsin gene, and therefore trichromacy, in Old World primates.