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The author has produced an excellent summary on developmental aphasia, a term covering the various types of psychologic disorders which are commonly known as word blindness, word deafness, speech disorders, speech delay and apraxia. He analyzes the syndrome in considerable detail and studies a group of 140 retarded children by means of the Terman-Merrill revision of the Stanford-Binet scale and a number of tests of language attainment, as well as tests of laterality and squint. The author devotes many pages to graphs, tables and charts showing psychologic characteristics such as reading and spelling accomplishments, relationship of retardation to learning interference and eye dominance as related to learning interference of both a qualitative and a quantitative nature. The author's conclusion is that the problem of retardation in children due to interference in language learning has a high relationship with left laterality of the eye and some relationship to lefthandedness and squint
Developmental Aphasia in Educationally Retarded Children: An Examination of the Thesis that the Core of Backwardness in the Primary School, in so far as This is not due to low Mental Capacity, is Provided by Aphasic Characters of Learning Interference. JAMA. 1943;121(9):712. doi:10.1001/jama.1943.02840090082041
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