Speech prosody in Broca's aphasia. Danly, M. and Shapiro, B. E Brain and Language, 16(2):171-190.
doi  abstract   bibtex   
Because speech prosody is thought to be impaired in Broca's aphasia, we conducted three experiments using Broca's aphasics and nonneurological control subjects in order to determine to what extent this statement is accurate. Using three acoustic measures of speech prosody - sentence-final fundamental frequency (F0) fall, F0 declination, and sentence-final lengthening - we found that some aspects of prosody were spared while others were abnormal. All Broca's aphasics, regardless of degree of impairment, exhibited sentence-final F0 fall. F0 declination was present in simple sentences but was absent over longer domains; moreover, the amount of declination was correlated with the degree of linguistic impairment. Sentence-final lengthening was clearly absent in Broca's aphasia; in fact, sentence-terminal words were actually shorter than their sentence-initials and medial counterparts.
@article{danly_speech_1982,
	Author = {Danly, Martha and Shapiro, Barbara E},
	Date = {1982},
	Date-Modified = {2017-04-19 08:04:06 +0000},
	Doi = {10.1016/0093-934X(82)90082-7},
	Issn = {0093934X},
	Journal = {Brain and Language},
	Keywords = {aphasia, clinical, clinical phonetics, neurolinguistics, phonetics, prosody},
	Number = {2},
	Pages = {171-190},
	Pmid = {7116126},
	Title = {Speech prosody in Broca's aphasia},
	Volume = {16},
	Abstract = {Because speech prosody is thought to be impaired in Broca's aphasia, we conducted three experiments using Broca's aphasics and nonneurological control subjects in order to determine to what extent this statement is accurate. Using three acoustic measures of speech prosody - sentence-final fundamental frequency (F0) fall, F0 declination, and sentence-final lengthening - we found that some aspects of prosody were spared while others were abnormal. All Broca's aphasics, regardless of degree of impairment, exhibited sentence-final F0 fall. F0 declination was present in simple sentences but was absent over longer domains; moreover, the amount of declination was correlated with the degree of linguistic impairment. Sentence-final lengthening was clearly absent in Broca's aphasia; in fact, sentence-terminal words were actually shorter than their sentence-initials and medial counterparts.},
	Bdsk-Url-1 = {http://dx.doi.org/10.1016/0093-934X(82)90082-7}}
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