Share This Author
Mapping striate and extrastriate visual areas in human cerebral cortex.
Findings suggest that human and simian cortical organization may begin to differ in extrastriate cortex at, or beyond, V3A and V4 of the macaque monkey.
Organization of the Human Trichromatic Cone Mosaic
- H. Hofer, J. Carroll, J. Neitz, M. Neitz, David Williams
- BiologyThe Journal of Neuroscience
- 1 May 2003
The results suggest that the assignment of L and M pigment, although highly irregular, is not a completely random process, and in the protan carrier, there was no evidence of clumping, perhaps as a result of cone migration during foveal development.
Trichromatic colour vision in New World monkeys
It is reported that multiple X-chromosome pigment genes and trichromatic colour vision are the norm for one genus of platyrrhine monkey, the howler monkey, Alouatta.
Retinal receptors in rodents maximally sensitive to ultraviolet light
It is reported that some rodents have a retinal mechanism that is maximally sensitive to ultraviolet light, which was thought not to exist in the eyes of mammals.
Spectral tuning of pigments underlying red-green color vision.
Comparisons of the deduced amino acid sequences suggest that three amino acid substitutions produce the approximately 30-nanometer difference in spectral peaks of the pigments underlying human red-green color vision, and red shifts of specific magnitudes are produced by replacement of nonpolar with hydroxyl-bearing amino acids at each of the three critical positions.
Functional consequences of the relative numbers of L and M cones.
- D. Brainard, A. Roorda, G. H. Jacobs
- MathematicsJournal of the Optical Society of America. A…
- 1 March 2000
This study examines the functional consequences of variation in the relative numbers of L and M cones (L/M cone ratio) for two observers whose ratios were measured by direct imaging and indicates that neural factors play an important role in stabilizing unique yellow against variation inThe L/M cones ratio.
Local cellular sources of apolipoprotein E in the human retina and retinal pigmented epithelium: implications for the process of drusen formation.
Color Perception Is Mediated by a Plastic Neural Mechanism that Is Adjustable in Adults
The genetics of normal and defective color vision
Mutations in S-cone pigment genes and the absence of colour vision in two species of nocturnal primate
Examination of the nucleotide sequences of the S-cone pigment genes reveals that each species has deleterious mutational changes: in comparison to the sequence for the corresponding region of the human gene, exon 4 of the bushbaby S- cone pigment gene has a two nucleotide deletion and a single nucleotide insertion that produces a frame shift and results in the introduction of a stop codon.