Vowel formant dispersion reflects severity of apraxia of speech

References

• Adank, P., Smits, R., & van Hout, R. (2004). A comparison of vowel normalization procedures for language variation research. The Journal of the Acoustical Society of America, 116, 3099–3107. doi:10.1121/1.1795335
   PubMed Web of Science ®Google Scholar
• Auzou, P., Ozsancak, C., Morris, R. J., Jan, M., Eustache, F., & Hannequin, D. (2000). Voice onset time in aphasia, apraxia of speech and dysarthria: A review. Clinical Linguistics & Phonetics, 14, 131–150. doi:10.1080/026992000298878
   Web of Science ®Google Scholar
• Ballard, K., Granier, J., & Robin, D. (2000). Understanding the nature of apraxia of speech: Theory, analysis, and treatment. Aphasiology, 969–995. doi:10.1080/02687030050156575
   Web of Science ®Google Scholar
• Basilakos, A., Rorden, C., Bonilha, L., Moser, D., & Fridriksson, J. (2015). Patterns of poststroke brain damage that predict speech production errors in apraxia of speech and aphasia dissociate. Stroke, 46, 1561–1566. doi:10.1161/STROKEAHA.115.009211
   PubMed Web of Science ®Google Scholar
• Basilakos, A., Yourganov, G., Den Ouden, D. B., Fogerty, D., Rorden, C., Feenaughty, L., & Fridriksson, J. (in press). A multivariate analytic approach to the differential diagnosis of apraxia of speech. Journal of Speech, Language, and Hearing Research.
   Web of Science ®Google Scholar
• Basilakos, A. A. (2016). Towards Improving the Evaluation of Speech Production Deficits in Chronic Stroke ( Unpublished doctoral dissertation). Columbia SC: University of South Carolina.
   Google Scholar
• Blumstein, S. E., Cooper, W. E., Goodglass, H., Statlender, S., & Gottlieb, J. (1980). Production deficits in aphasia: A voice-onset time analysis. Brain and Language, 153–170. doi:10.1016/0093-934X(80)90137-6
   PubMed Web of Science ®Google Scholar
• Boersma, P. (2001). Praat, a system for doing phonetics by computer. Glot International, 5, 341–345.
   Google Scholar
• Cicchetti, D. V. (1994). Guidelines, criteria, and rules of thumb for evaluating normed and standardized assessment instruments in psychology. Psychological Assessment, 6, 284. doi:10.1037/1040-3590.6.4.284
   Google Scholar
• Code, C. (1998). Models, theories and heuristics in apraxia of speech. Clinical Linguistics and Phonetics, 12, 47–65. doi:10.3109/02699209808985212
   Web of Science ®Google Scholar
• Dabul, B. L. (2000). Apraxia battery for adults (2nd ed.). Austin, TX: Pro-Ed.
   Google Scholar
• Darley, F. L., Aronson, A. E., & Brown, J. R. (1969). Differential diagnostic patterns of dysarthria. Journal of Speech and Hearing Research, 12, 246–269. doi:10.1044/jshr.1202.246
   PubMedGoogle Scholar
• Den Ouden, D. B. (2011). Phonological disorders. In B. Botma, N. C. Kula, & K. Nasukawa (Eds.), Continuum companion to phonology (pp. 320–340). London: Continuum.
   Google Scholar
• Fletcher, A. R., McAuliffe, M. J., Lansford, K. L., & Liss, J. M. (2017). Assessing vowel centralization in dysarthria: A comparison of methods. Journal of Speech, Language, and Hearing Research, 60, 341–354. doi:10.1044/2016_jslhr-s-15-0355
   PubMed Web of Science ®Google Scholar
• Galluzzi, C., Bureca, I., Guariglia, C., & Romani, C. (2015). Phonological simplifications, apraxia of speech and the interaction between phonological and phonetic processing. Neuropsychologia, 71, 64–83. doi:10.1016/j.neuropsychologia.2015.03.007
   PubMed Web of Science ®Google Scholar
• Gandour, J., & Dardarananda, R. (1984). Voice onset time in aphasia - Thai .2. Production. Brain and Language, 23, 177–205. doi:10.1016/0093-934x(84)90063-4
   PubMed Web of Science ®Google Scholar
• Goodglass, H., Kaplan, E., & Barresi, B. (2000). Boston diagnostic aphasia examination (3rd ed.). San Antonio, TX: Pearson.
   Google Scholar
• Haley, K. L., Jacks, A., de Riesthal, M., Abou-Khalil, R., & Roth, H. L. (2012). Toward a quantitative basis for assessment and diagnosis of apraxia of speech. Journal of Speech Language and Hearing Research, 55, S1502–S1517. doi:10.1044/1092-4388(2012/11-0318)
   PubMed Web of Science ®Google Scholar
• Haley, K. L., Ohde, R. N., & Wertz, R. T. (2001). Vowel quality in aphasia and apraxia of speech: Phonetic transcription and formant analyses. Aphasiology, 15, 1107–1123. doi:10.1080/02687040143000519
   Web of Science ®Google Scholar
• Haley, K. L., & Overton, H. B. (2001). Word length and vowel duration in apraxia of speech: The use of relative measures. Brain and Language, 79, 397–406. doi:10.1006/brln.2001.2494
   PubMed Web of Science ®Google Scholar
• Hardcastle, W. J., Barry, R. A. M., & Clark, C. J. (1985). Articulatory and voicing characteristics of adult dysarthric and verbal dyspraxic speakers - an instrumental study. British Journal of Disorders of Communication, 20, 249–270. doi:10.3109/13682828509012266
   PubMedGoogle Scholar
• Itoh, M., Sasanuma, S., Tatsumi, I. F., Murakami, S., Fukusao, Y., & Suzuki, T. (1982). Voice onset time characteristics in apraxia of speech. Brain and Language, 17, 193–210. doi:10.1016/0093-934x(82)90016-5
   PubMed Web of Science ®Google Scholar
• Jacks, A. (2008). Bite block vowel production in apraxia of speech. Journal of Speech, Language, and Hearing Research, 51, 898–913. doi:10.1044/1092-4388(2008/066)
   PubMed Web of Science ®Google Scholar
• Jacks, A., Mathes, K., & Marquardt, T. (2010). Vowel acoustics in adults with apraxia of speech. Journal of Speech, Language, and Hearing Research, 53, 61–74. doi: 1092-4388_2009_08-0017. doi:10.1044/1092-4388(2009/08-0017)
   PubMed Web of Science ®Google Scholar
• Karlsson, F., & van Doorn, J. (2012). Vowel formant dispersion as a measure of articulation proficiency. Journal of the Acoustical Society of America, 132, 2633–2641. doi:10.1121/1.4746025
   PubMed Web of Science ®Google Scholar
• Keller, E. (1975). Vowel errors in aphasia ( Unpublished Doctoral Dissertation). University of Toronto, Canada.
   Google Scholar
• Kent, R. D., & Kim, Y. J. (2003). Toward an acoustic typology of motor speech disorders. Clinical Linguistics & Phonetics, 17, 427–445. doi:10.1080/0269920031000086248
   PubMed Web of Science ®Google Scholar
• Kent, R. D., & Rosenbek, J. C. (1983). Acoustic patterns of apraxia of speech. Journal of Speech and Hearing Research, 26, 231–249. doi:10.1044/jshr.2602.231
   PubMedGoogle Scholar
• Kertesz, A. (2007). Western aphasia battery - Revised. San Antonio, TX: Pearson.
   Google Scholar
• Lee, J., Shaiman, S., & Weismer, G. (2016). Relationship between tongue positions and formant frequencies in female speakers. The Journal of the Acoustical Society of America, 139, 426–440. doi:10.1121/1.4939894
   PubMed Web of Science ®Google Scholar
• Lennes, M. (2003). Collect_formant_data_from_files.praat [Praat script]. Retrieved from http://www.helsinki.fi/~lennes/praat-scripts/public
   Google Scholar
• Lobanov, B. M. (1971). Classification of Russian vowels spoken by different listeners. Journal of the Acoustical Society of America, 49, 606–608. doi:10.1121/1.1912396
   Web of Science ®Google Scholar
• Maas, E., Gutierrez, K., & Ballard, K. J. (2014). Phonological encoding in apraxia of speech and aphasia. Aphasiology, 28, 25–48. doi:10.1080/02687038.2013.850651
   PubMed Web of Science ®Google Scholar
• Maas, E., Mailend, M. L., & Guenther, F. H. (2015). Feedforward and feedback control in apraxia of speech: Effects of noise masking on vowel production. Journal of Speech Language and Hearing Research, 58, 185–200. doi:10.1044/2014_jslhr-s-13-0300
   PubMed Web of Science ®Google Scholar
• Mauszycki, S. C., Dromey, C., & Wambaugh, J. L. (2007). Variability in apraxia of speech: A perceptual, acoustic, and kinematic analysis of stop consonants. Journal of Medical Speech-Language Pathology, 15, 223–242.
   Web of Science ®Google Scholar
• Mauszycki, S. C., Wambaugh, J. L., & Cameron, R. M. (2010). Variability in apraxia of speech: Perceptual analysis of monosyllabic word productions across repeated sampling times. Aphasiology, 24, 838–855. doi:10.1080/02687030903438516
   Web of Science ®Google Scholar
• McNeil, M. R., Doyle, P. J., & Wambaugh, J. (2000). Apraxia of speech: A treatable disorder of motor planning and programming. In S. E. Nadeau, L. J. G. Rothi, & B. Crosson (Eds.), Aphasia and language: Theory to practice (pp. 221–266). New York: The Guildford Press.
   Google Scholar
• Morris, R. J. (1989). Vot and dysarthria - a descriptive study. Journal of Communication Disorders, 22, 23–33. doi:10.1016/0021-9924(89)90004-X
   PubMed Web of Science ®Google Scholar
• Nearey, T. M. (1978). Phonetic feature systems for vowels. Indiana: Indiana University Linguistics Club.
   Google Scholar
• Ogar, J., Slama, H., Dronkers, N., Amici, S., & Gorno-Tempini, M. (2005). Apraxia of speech: An overview. Neurocase, 11, 427–432. doi:10.1080/13554790500263529
   PubMed Web of Science ®Google Scholar
• Ordin, M., & Polyanskaya, L. (2015). Perception of speech rhythm in second language: The case of rhythmically similar L1 and L2. Frontiers in Psychology, 6. Artn 316. doi:10.3389/Fssyg.2015.00316
   PubMed Web of Science ®Google Scholar
• Peterson, G. E., & Lehiste, I. (1960). Duration of syllable nuclei in English. Journal of the Acoustical Society of America, 32, 693–703. doi:10.1121/1.1908183
   Web of Science ®Google Scholar
• Rosenbek, J. C., Kent, R. D., & LaPointe, L. L. (1984). Apraxia of speech: An overview and some perspectives. In J. C. Rosenbek, M. R. McNeil, & A. E. Aronson (Eds.), Apraxia of speech: Physiology, acoustics, linguistics, management (pp. 1–72). San Diego: College-Hill Press.
   Google Scholar
• Ryalls, J. H. (1986). An acoustic study of vowel production in aphasia. Brain and Language, 29, 48–67. doi:10.1016/0093-934x(86)90033-7
   PubMed Web of Science ®Google Scholar
• Sapir, S., Ramig, L. O., Spielman, J. L., & Fox, C. (2010). Formant centralization ratio: A proposal for a new acoustic measure of dysarthric speech. Journal of Speech Language and Hearing Research, 53, 114–125. doi:10.1044/1092-4388(2009/08-0184)
   PubMed Web of Science ®Google Scholar
• Seddoh, S. A. K., Robin, D. A., Sim, H. S., Hageman, C., Moon, J. B., & Folkins, J. W. (1996). Speech timing in apraxia of speech versus conduction aphasia. Journal of Speech and Hearing Research, 39, 590–603. doi:10.1044/jshr.3903.590
   PubMedGoogle Scholar
• Strand, E. A., Duffy, J. R., Clark, H. M., & Josephs, K. (2014). The apraxia of speech rating scale: A tool for diagnosis and description of apraxia of speech. Journal of Communication Disorders, 51, 43–50. doi:10.1016/j.jcomdis.2014.06.008
   PubMed Web of Science ®Google Scholar
• Traunmüller, H. (1990). Analytical expressions for the tonotopic sensory scale. Journal of the Acoustical Society of America, 88, 97–100. doi:10.1121/1.399849
   Web of Science ®Google Scholar
• Vergis, M. K., Ballard, K. J., Duffy, J. R., McNeil, M. R., Scholl, D., & Layfield, C. (2014). An acoustic measure of lexical stress differentiates aphasia and aphasia plus apraxia of speech after stroke. Aphasiology, 28, 554–575. doi:10.1080/02687038.2014.889275
   Web of Science ®Google Scholar
• Wambaugh, J. L., Nessler, C., Cameron, R., & Mauszycki, S. C. (2012). Acquired apraxia of speech: The effects of repeated practice and rate/rhythm control treatments on sound production accuracy. American Journal of Speech-Language Pathology, 21, S5–27. doi:10.1044/1058-0360(2011/11-0102)
   PubMed Web of Science ®Google Scholar
• Wells, J. C. (1997). SAMPA computer readable phonetic alphabet. In D. Gibbon, R. Moore, & R. Winski (Eds.), Handbook of standards and resources for spoken language systems (Vol. Part IV, section B). Berlin: Mouton de Gruyter.
   Google Scholar
• Whiteside, S. P., Robson, H., Windsor, F., & Varley, R. (2012). Stability in voice onset time patterns in a case of acquired apraxia of speech. Journal of Medical Speech-Language Pathology, 20, 17–28.
   PubMedGoogle Scholar
• Ziegler, W. (2002). Psycholinguistic and motor theories of apraxia of speech. Seminars in Speech and Language, 23, 231–244. doi:10.1055/s-2002-35798
   PubMedGoogle Scholar
• Ziegler, W., Aichert, I., & Staiger, A. (2012). Apraxia of speech: Concepts and Controversies. Journal of Speech, Language, and Hearing Research, 55, S1485–1501. doi:10.1044/1092-4388(2012/12-0128)
   PubMed Web of Science ®Google Scholar