Brain Advance Access originally published online on June 23, 2003
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Brain, Vol. 126, No. 8, 1838-1850,
August 2003
© 2003 Guarantors of Brain
doi: 10.1093/brain/awg186
Revisiting the dissociation between singing and speaking in expressive aphasia
1 University of Montreal and Montreal University Geriatric Institute, Montrèal, Quebec, and 2 Research Center on Aging, Sherbrooke, Québec, Canada
Correspondence to: Sylvie Hébert, PhD, École dorthophonie et daudiologie, Faculté de médecine, Université de Montréal C.P. 6128, succ. Centre-ville Montréal, Québec, Canada H3C 3J7 E-mail: sylvie.hebert{at}umontreal.ca
We investigated the production of sung and spoken utterances in a non-fluent patient, C.C., who had a severe expressive aphasia following a right-hemisphere stroke, but whose language comprehension and memory were relatively preserved. In experiment 1, C.C. repeated familiar song excerpts under four different conditions: spoken lyrics, sung lyrics on original melody, lyrics sung on new but familiar melody and melody sung to a neutral syllable la. In experiment 2, C.C. repeated novel song excerpts under three different conditions: spoken lyrics, sung lyrics and sung-to-la melody. The mean number of words produced under the spoken and sung conditions did not differ significantly in either experiment. The mean number of notes produced was not different either in the sung-to-la and sung conditions, but was higher than the words produced, hence showing a dissociation between C.C.s musical and verbal productions. Therefore, our findings do not support the claim that singing helps word production in non-fluent aphasic patients. Rather, they are consistent with the idea that verbal production, be it sung or spoken, result from the operation of same mechanisms.
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