 | 1903 - 808 pages
...purple is the visual substance, then we have an easy explanation of the facts. •;•••:••* 'i The fibres of the optic nerve pass to the visual center....color-blindness, and it will be seen that it gives a simple explanation of the facts. Cases of color-blindness may be divided into two classes, which... | |
 | 1903 - 498 pages
...centre is, therefore, acted upon by impulses caused by all rays of light, the colour-perceiving centre being concerned with the quality of the impulse within...power of perceiving differences possessed by that centre, or portions of that centre. I will now apply this theory to colour-blindness, and it will be... | |
 | British Association for the Advancement of Science - 1903 - 1174 pages
...centre is, therefore, acted upon by impulses caused by all rays of light, the colour-perceiving centre being concerned with the quality of the impulse within the power of perceiving differences possessed by tlint centre, or portions of that centre. I will now apply this theory to colour-blindness, and it... | |
 | 1905 - 786 pages
...transmitted. The center is acted upon by impulses caused by all rays of light, the color perceiving center being concerned with the quality of the impulse...perceiving differences possessed by that center, or portion of it. The theory is therefore dependent upon two hypotheses — one retinal, and the other... | |
 | 1905 - 710 pages
...centre is, therefore, acted upon by impulses caused by all rays of light, the colour perceiving centre being concerned with the quality of the impulse within...power of perceiving differences possessed by that centre, or portions of that centre. I will now apply this theory to colour-blindness, and it will be... | |
 | Lawrance Webster Fox - 1909 - 854 pages
...there is a special perceptive center in the brain by which the quality of the impulse is perceived, within the power of perceiving differences possessed by that center or portions of that center. COLOR-BLINDNESS (DALTONISM) In certain cases there exists an inability to distinguish certain colors,... | |
 | British Association for the Advancement of Science. Meeting - 1903 - 1182 pages
...centre i«. therefore, acted upon by impulsos caused by all rays of light, the colour-perctivin^ centre being concerned with the quality of the impulse within...power of perceiving differences possessed by that centre, or portions of thnt centre. I will now apply this theory to colour-blindness, and it will be... | |
 | Ophthalmological Society of the United Kingdom - 1906 - 460 pages
...centre is therefore acted upon by impulses caused by all rays of light, the colour perceiving centre being concerned with the quality of the impulse within...power of perceiving differences possessed by that centre or portions of that centre. It now remains for me to show how a colour system can be developed... | |
 | 1903 - 828 pages
...visual center is, therefore, acted upon by impulses caused by all rays of light, the color- perceiving center being concerned with the quality of the impulse...color-blindness, and it will be seen that it gives a simple explanation of the facts. Cases of color-blindness may be divided into two classes, which... | |
 | 1905 - 802 pages
...transmitted. The center is acted upon by impulses caused by all rays of light, the color perceiving center being concerned with the quality of the impulse...perceiving differences possessed by that center, or portion of it. The theory is therefore dependent upon two hypotheses — one retinal, and the other... | |
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The visual center is, therefore, acted upon by impulses caused by all rays of light, the color- perceiving center being concerned with the quality of the impulse within the power of perceiving differences possessed by that center, or portions of that... 