The ABO system consists of A, B, AB, and O blood types. People with type A have antibodies in the blood against type B. People with type B have antibodies in the blood against type A. People with AB have no anti-A or anti-B antibodies.
Developmental dyslexia, or specific reading disability, is a disorder in which children with normal intelligence and sensory abilities show learning deficits for reading.
Both pathways lead to the thalamus, but action potentials from the magnocellular system arrive 7-10 ms sooner (Maunsell & Gibson, 1992). A deficit in magnocellular processing has long been hypothesized to be the root cause of developmental dyslexia (e.g., Stein & Walsh, 1997).o see but not to read; the magnocellular theory of dyslexia. Trends In Neurosciences, 20(4), 147-152. doi:10.1016/S0166-2236(96)01005-3Slaghuis, W. L., & Ryan, J. F. (1999). Spatio-temporal contrast sensitivity, coherent motion and visible persistence in developmental dyslexia.