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February 12, 1968

"Patterning" Treatment For Brain Damage

JAMA. 1968;203(7):527. doi:10.1001/jama.1968.03140070083031

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To the Editor:—  The excellent articles by Drs. Roger D. Freeman and Melvyn P. Robbins on the Doman-Delacato rationale (202: 385, 389, 1967) deserve comment, as follows.Both authors, together with the proponents and other critics of this hypothesis, have ignored a simple anatomical fact which tends to negate the laterality concept of the rationale: the human being is endowed with an optic chiasm, in which there is a partial decussation of the fibers from each eye, so that the nerve fibers from each eye tend to be distributed to both sides of the brain.Obviously, eye dominance and limb dominance are two very different things, and attempts to establish laterality by placing filters over a dominant eye are patently foolish. In order to separate the laterality of visual stimuli to the brain, one would have to separate the right and left halves of the visual fields. This has been