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This is an excellent treatise on agnosia, apraxia and aphasia. The author had the good fortune of having Dr. Samuel D. Ingham, a keen neurologist, as an adviser as well as a teacher. The work is based on a clinical study of 240 cases with twenty-five necropsies, thirteen surgical verifications and two roentgenologic corroborations. Because of gross errors and unwarranted conclusions in the old teaching, Nielsen does not believe that the idea that aphasia can be of diagnostic value in cerebral localization should be discarded for the psychologic point of view. He shows where neurosurgical removal of portions of the brain has given confirmatory evidence to the old doctrine. He feels that a diagnostic method should not be permitted to fall into discard merely because it is difficult. The book is divided into three parts. Part I includes an introduction, the author's concept of eugnosia, eupraxia and euphasia, the method
Agnosia, Apraxia, Aphasia: Their Value in Cerebral Localization. JAMA. 1937;109(7):531. doi:10.1001/jama.1937.02780330059037
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