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Journal of Learning Disabilities
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Motor-Perceptual Function in Children with Developmental Reading Disorders

Neuropsychophysiological Analysis

Giuseppe Augusto Chiarenza

Giuseppe Chiarenza received the Italian degree (Laurea) in medicine from the University of Catania in 1971. He is a physician specialist in neurology and child neuropsychiatry and senior researcher at the Istituto di Neuropsichiatria Infantile, University of Milano. Dr. Chiarenza is the scientific secretary of the Italian Society of Higher Nervous Activity and the Psychoneurobiology section of the World Psychiatric Association. Address: Giuseppe Augusto Chiarenza, Istituto di Neuropsichiatria Infantile-Università degli Studi di Milano, Via Besta n. I, 20161 Milano, Italy.

The aim of this paper is to compare the motor performances and the movement-related macropotentials of 8 male children aged 10 years with developmental reading disorders with those of 9 nondisabled male children of the same age. The task employed consisted of initiating the sweep of an oscilloscope with a self-paced movement and terminating it within 50 ± 10 msec. The children with reading disorders were slower, less accurate, and achieved a smaller number of target performances. Their brain macropotentials associated with motor programming, processing of sensory information, and evaluation of the results were altered in amplitude and latency. In the children with reading disorders, the systems involved in planning strategies and processing of sensory information are inadequate and those involved in the correction of errors are less efficient. Therefore, reading disorders could express defective integration and dysfunction of numerous processes occurring at different levels and times.

Journal of Learning Disabilities, Vol. 23, No. 6, 375-385 (1990)
DOI: 10.1177/002221949002300609
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[Abstract] [PDF]