TY - JOUR
T1 - The role of callosal connections in speech prosody
AU - Klouda, Gayle V.
AU - Robin, Donald A.
AU - Graff-Radford, Neill R.
AU - Cooper, William E.
N1 - Funding Information:
This work was supported by NIH Grant NS19632. A portion of this research was presented at the 17th Annual Clinical Aphasiology Conference in Missouri, June, 1987. We thank Professor Antonio R. Damasio for providing testing facilities and Professor Hanna Damasio for her input in interpreting the anatomical data. We also thank Linda N. Hug for her assistance in performing the durational analyses. Please address reprint requests to Gayle V. Klouda, Department of Psychology, 304 Spence Laboratories, University of Iowa, Iowa City, IA 52242.
PY - 1988/9
Y1 - 1988/9
N2 - A 39-year-old right-handed woman suffered an aneurysmal hemorrhage damaging the anterior four-fifths of the corpus callosum as shown on MRI. Computeraided acoustical analyses of fundamental frequency (F0) contours and durational patterns were performed on emotive and nonemotive utterances at 4 weeks, 4 months, and 1 year postsurgery. The patient read sentences in each of five tones (happy, sad, angry, neutral, questioning) or with emphasis on certain words. She showed little F0 distinction with intended mood at 4 weeks, but her performance improved over time. This improvement in speech production was accompanied by an improvement in perceptual judgments of her intended tone by six normal listeners. F0 patterns characteristic of emphatic stress and question forms were found at all test periods, but again improved with time. Durationally, the patient showed appropriate emotive and nonemotive distinctions on most sentences. These results provide acoustic evidence that interhemispheric connections via the corpus callosum are important to proper F0 programming, especially emotive distinctions. The results suggest that the right hemisphere contributes to F0 programming but, following callosal damage, such programming can later be performed by the left hemisphere.
AB - A 39-year-old right-handed woman suffered an aneurysmal hemorrhage damaging the anterior four-fifths of the corpus callosum as shown on MRI. Computeraided acoustical analyses of fundamental frequency (F0) contours and durational patterns were performed on emotive and nonemotive utterances at 4 weeks, 4 months, and 1 year postsurgery. The patient read sentences in each of five tones (happy, sad, angry, neutral, questioning) or with emphasis on certain words. She showed little F0 distinction with intended mood at 4 weeks, but her performance improved over time. This improvement in speech production was accompanied by an improvement in perceptual judgments of her intended tone by six normal listeners. F0 patterns characteristic of emphatic stress and question forms were found at all test periods, but again improved with time. Durationally, the patient showed appropriate emotive and nonemotive distinctions on most sentences. These results provide acoustic evidence that interhemispheric connections via the corpus callosum are important to proper F0 programming, especially emotive distinctions. The results suggest that the right hemisphere contributes to F0 programming but, following callosal damage, such programming can later be performed by the left hemisphere.
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U2 - 10.1016/0093-934X(88)90106-X
DO - 10.1016/0093-934X(88)90106-X
M3 - Article
C2 - 3179701
AN - SCOPUS:0023762652
SN - 0093-934X
VL - 35
SP - 154
EP - 171
JO - Brain and Language
JF - Brain and Language
IS - 1
ER -