Contrast sensitivity and orientation selectivity in lamina IV of the striate cortex of Old World monkeys

1984 ◽  
Vol 54 (2) ◽  
Author(s):  
M.J. Hawken ◽  
A.J. Parker
Keyword(s):  
Contrast Sensitivity ◽  
Striate Cortex ◽  
Orientation Selectivity ◽  
Old World Monkeys ◽  
Old World

Ultrastructure and analytical microprobe analysis of simian lung mite pigments

1986 ◽  
Vol 44 ◽  
pp. 324-325
Author(s):  
R. W. Cole ◽  
J. C. Kim
Keyword(s):  
Biomedical Research ◽  
Tissue Damage ◽  
Microprobe Analysis ◽  
Old World Monkeys ◽  
Old World ◽  
Experimental Animals ◽  
The Past ◽  
Lung Mite ◽  
Mite Infestations ◽  
Cardiopulmonary System

In recent years, non-human primates have become indispensable as experimental animals in many fields of biomedical research. Pharmaceutical and related industries alone use about 2000,000 primates a year. Respiratory mite infestations in lungs of old world monkeys are of particular concern because the resulting tissue damage can directly effect experimental results, especially in those studies involving the cardiopulmonary system. There has been increasing documentation of primate parasitology in the past twenty years.

“Tho' she kneel'd in that place where they grew…” The uses and origins of primate colour vision

1989 ◽  
Vol 146 (1) ◽  
pp. 21-38 ◽  
Author(s):  
J. D. Mollon
Keyword(s):  
X Chromosome ◽  
Colour Vision ◽  
Visual Pathway ◽  
New World Monkeys ◽  
Old World Monkeys ◽  
Old World ◽  
Early Stages ◽  
Local Sign ◽  
Retinal Photoreceptor ◽  
Recent Duplication

The disabilities experienced by colour-blind people show us the biological advantages of colour vision in detecting targets, in segregating the visual field and in identifying particular objects or states. Human dichromats have especial difficulty in detecting coloured fruit against dappled foliage that varies randomly in luminosity; it is suggested that yellow and orange tropical fruits have co-evolved with the trichromatic colour vision of Old World monkeys. It is argued that the colour vision of man and of the Old World monkeys depends on two subsystems that remain parallel and independent at early stages of the visual pathway. The primordial subsystem, which is shared with most mammals, depends on a comparison of the rates of quantum catch in the short- and middle-wave cones; this system exists almost exclusively for colour vision, although the chromatic signals carry with them a local sign that allows them to sustain several of the functions of spatiochromatic vision. The second subsystem arose from the phylogenetically recent duplication of a gene on the X-chromosome, and depends on a comparison of the rates of quantum catch in the long- and middle-wave receptors. At the early stages of the visual pathway, this chromatic information is carried by a channel that is also sensitive to spatial contrast. The New World monkeys have taken a different route to trichromacy: in species that are basically dichromatic, heterozygous females gain trichromacy as a result of X-chromosome inactivation, which ensures that different photopigments are expressed in two subsets of retinal photoreceptor.

Old World Monkeys

2021 ◽  
pp. 80-85
Author(s):  
Stephen R Frost ◽  
Christopher C Gilbert
Keyword(s):  
Old World Monkeys ◽  
Old World

scholarly journals Expression Patterns of Killer Cell Immunoglobulin-Like Receptors (KIR) of NK-Cell and T-Cell Subsets in Old World Monkeys

PLoS ONE ◽  
2013 ◽  
Vol 8 (5) ◽  
pp. e64936 ◽  
Author(s):  
Meike Hermes ◽  
Christina Albrecht ◽  
Annette Schrod ◽  
Markus Brameier ◽  
Lutz Walter
Keyword(s):  
T Cell ◽  
Nk Cell ◽  
Expression Patterns ◽  
Killer Cell ◽  
T Cell Subsets ◽  
Old World Monkeys ◽  
Old World
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