Long Wavelength Cone System

Long-wavelength-sensitive cones dominate the primate retina, comprising 90% of all the cones. The short-wavelength-sensitive or S cones comprise only 10% of the cones and are absent from the central fovea, the area of highest visual resolution. The long wave cones are composed of two types of cones, with similar opsins. Both absorb best in the long wave or yellow half of the spectrum. One type, M or "green" cones, absorbs slightly better in the middle or green part of the spectrum, and the other, L or "red" cones, absorbs slightly better in the long or red part of the spectrum (Fig. 2). These L and M cones seem to be


Understanding And Treating Autism

Understanding And Treating Autism

Whenever a doctor informs the parents that their child is suffering with Autism, the first & foremost question that is thrown over him is - How did it happen? How did my child get this disease? Well, there is no definite answer to what are the exact causes of Autism.

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