The Future Of Color Vision

Color vision offers a valuable insight into how the cerebral cortex works because it is a well-defined process that depends on three retinal variables serving each area of visual space and is intimately associated with form vision. Many of the logical operations necessary for color vision, which are performed by circuits of nerve cells, are relatively well understood. The major impasse in our understanding of the process is how its clues to contrast are unified into the recognition of form. It is our poor understanding of form vision that makes the final stage of understanding color vision difficult. Understanding how nature interweaves clues from chromatic and achromatic contrast into those for form perception using arrays of neurons and neuronal interactions should lead to a better understanding of not only color vision but also the cerebral cortex in general. The problem of researching this topic, however, has been that the tools to study it have been and still are too crude. It is necessary to monitor large numbers of single neurons performing their operations within a fraction of a second and to continue doing so during long-term experiments. Such techniques are just beginning to evolve.

Breaking Bulimia

Breaking Bulimia

We have all been there: turning to the refrigerator if feeling lonely or bored or indulging in seconds or thirds if strained. But if you suffer from bulimia, the from time to time urge to overeat is more like an obsession.

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