منابع مشابه
Testing Hypotheses About Visual Pigments Underlying Deutan Color Vision
A classical theory held that deuteranomaly was caused by the replacement of the normal M cone pigment by an anomalous M pigment, which was spectrally red-shifted. Two assumptions associated with that theory were: (1) that there was a single, fixed L pigment, shared by deuteranomals and normals; (2) and that everyone had two genes for cone pigments on the X-chromosome. Those two assumptions are ...
متن کاملMolecular genetics of color vision and color vision defects.
Color is an extremely important component of the information that we gather with our eyes. Most of us use color so automatically that we fail to appreciate how important it is in our daily activities. It serves as a nonlinguistic code that gives us instant information about the world around us. From observing color, for example, we can find the bee sting on an infant's arm even before it begins...
متن کاملComputational theories of vision
Neuroscientists study the brain at many different levels, from molecular to psychological. Despite progress on many of these levels, there is a disappointing lack of coherence in neuroscience research: we have yet to find an overarching theoretical framework for understanding what the brain does. Vision is one of the most intensively studied areas of brain function. Yet, even in this field, the...
متن کامل[Color vision].
INTRODUCTION .......................................................................................................... 42 Trichromacy and the Trichromatic Theory .............................................................. 42 Psychol~hysical l~$timates of the Cone Sensitivities .................................................... 44 The Two-Color Procedure and the ~" Mechanisms ................
متن کاملColor-Vision and Color-Blindness
Special public attention was called to the subject in 1875 by an enquiry into the causes of a railway accident which had taken place in Sweden, from which it appears that colourblindness was the cause of the disaster. Our author having described colour-sensations, goes on to discuss the theories of colour-perception and colour-blindness, classifying the latter defect as total and partial. Total...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 1959
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.45.1.89