Speech and bimanual hand organization in adult stutterers and nonstutterers |
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Authors: | Hiram E Fitzgerald Paul A Cooke Jay R Greiner |
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Institution: | Department of Psychology and Audiology and Speech Sciences Michigan State University, East Lansing, Michigan, USA |
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Abstract: | A multivariate approach was used to investigate the relationship between speech fluency and bimanual handwriting in right-handed male stutterers and nonstutterers. Handedness was determined by the Harris Test of Lateral Dominance. Subjects were required to write the numbers 1 through 12 simultaneously, as quickly as possible. Speech measures were derived from the Stuttering Severity Instrument and from a reading passage. Stutterers performed more poorly than nonstutterers on all speech measures. There were no differences in bimanual handwriting performance for the dominant hand. However, stutterers performed more poorly than nonstutterers in nondominant handwriting. There were no relationships between speech measures and bimanual handwriting for stutterers or nonstutterers. Some stutterers performed better on the handwriting task than did some nonstutterers. It is suggested that disorganization in interhemispheric integration functions may be a more fundamental problem in stuttering than is incomplete cerebral dominance. |
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Keywords: | Address correspondence to Hiram E Fitzgerald Department of Psychology Psychology Research Building Michigan State University East Lansing MI 48824 USA |
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