This is a difficult test for normal
trichromats and up to five errors must be allowed as a pass.
There was a verified existence (and variance) of anomalous
trichromats (people having a mutated form of their red, green, or blue pigment) within the tested group of rabbinical stain examiners.
In contrast, between two kinds of
trichromats, say human and honey bee, the number of primary colours will be the same, although their respective ranges of wavelength sensitivities usually differ (p.
Similarly, the anomalous
trichromats mentioned in footnote 8 seem to make the colour discriminations we make; but, again, it is doubtful that they have the same phenomena we have.
Most protanomalous
trichromats have two L/M chimeras.
c) The applicant can be an anomalous
trichromat but not a dichromat
The patient is malingering and is actually a normal
trichromatA protanomalous
trichromat has two cone types with a photopigment spectral sensitivity peak around 530nm (Figure 11b).
Ten
trichromats (1 man, 9 women, age range 21-43) performed the two tasks included in the Simulcheck method.
TABLE 1: Color Vision Deficient Groups Extent Selection Criteria Deutan Protan Mild anomalous Pass Farnsworth lantern, pass 5 5
trichromats Farnsworth-Munsell Panel D-15 Moderate anomalous Fail Farnsworth lantern, pass 5 5
trichromats Farnsworth-Munsell Panel D-15 Strong anomalous Fail Farnsworth-Munsell Panel 5 5
trichromats D-15 (but not dichromats or extreme anomalous
trichromats (a)) Dichromats Match whole red-green range on 10 9 Nagel anomaloscope even after adaptation on Trendelenberg plate Note.
The specificity of a test is the percentage of normal
trichromats correctly identified as normal (true negatives).
c) It can reliably differentiate between dichromats and anomalous
trichromats
