Objective To explore the kinematics characteristics of articulators (including lips, tongue and jaw) during articulation in dysarthric individuals post brain injury by using electromagnetic articulography (electromagnetic articulography, EMA). Methods From October, 2017 to October, 2018, six eligible individuals with dysarthria were recruited as dysarthria group, and ten age-gender matched healthy adults were recruited as healthy control group. Both groups received EMA assessment, and the dysarthria group was assessed with Chinese modified version of Frenchay Dysarthria Assessment before EMA assessment. To track and record kinematic parameters data (including duration, velocity, acceleration, distance) and displacement movement trajectories, a series of sensors were attached on the participant's lips, tongue (tip, blade and back of tongue) and jaw, the reference sensor was attached on the bridge of nose, all of the sensors were along midsagittal plane. During EMA assessment, each participant was received syllable repetition task, which containing consonants (/d/, /t/, /j/, /q/, /g/, /k/, /b/, /p/) at word initial position and vowels (/a/, /ia/, /iu/), to produce the single word with the Chinese linguistic meaning, every syllable produced was repeated three times. Then Praat software and Matlab software were used to process acoustic and kinematic data, so as to compare the differences of articulatory kinematic performance between two groups. Results The outcome of the Frenchay Dysarthria Assessment indicated that the severity of dysarthria was from moderate to extreme severe. EMA assessment demonstrated that, compared with the healthy control group, the dysarthria group showed a reduction of velocity, acceleration and distance of tongue and lip movement (t > 2.422, P < 0.05), and longer duration of tongue tip, tongue back and jaw movement (t > 3.369, P < 0.05). There was no statistical difference in duration of tongue blade and lip movement (t < 2.146, P > 0.05), the same as the velocity, acceleration and distance of jaw movement between two groups (t < 1.016, P > 0.05). Image analysis of kinematics parameters and synchronous audio data showed that, compared with the healthy control group, the dysarthria group varied unstably in velocity and acceleration, and the audio data showed that, when repeated /da/ three times, the duration of each syllable was not equal. The coordination of articulation movement displacement in the anterior-posterior dimension and inferior-superior dimension was poor, there were significant differences in visual inspection of movement trajectories between two groups, and a smaller displacement was found in the anterior-posterior dimension in the dysarthric group. Conclusion EMA assessment has significant advantages in evaluating kinematics parameters quantitatively, which could reveal the kinematics characteristics of articulators.
FENG Xiao-huan
,
QIU Wei-hong
,
CHEN Zhao-cong
,
WU Hui-xiang
,
QIN Xiao-yi
. Articulatory Kinematic Characteristics during Speech Production for Individuals with Dysarthria: A Study Based on Electromagnetic Articulography[J]. Chinese Journal of Rehabilitation Theory and Practice, 2019
, 25(2)
: 125
-134
.
DOI: 10.3969/j.issn.1006-9771.2019.02.001
[1] Duffy J R. Motor Speech Disorders: Substrates, Differential Diagnosis, and Management [M]. 3rd ed. St Louis, Missouri: Elsevier Health Sciences, 2013: 3-4.
[2] Yorkston K M. Treatment efficacy: dysarthria [J]. J Speech Hear Disord, 1996, 39(5): S46-S57.
[3] Yunusova Y, Weismer G, Kent R D, et al. Breath-group intelligibility in dysarthria: characteristics and underlying correlates [J]. J Speech Lang Hear Res, 2005, 48(6): 1294-1310.
[4] Lee J, Littlejohn M A, Simmons Z. Acoustic and tongue kinematic vowel space in speakers with and without dysarthria [J]. Int J Speech Lang Pathol, 2017,19(2): 195-204.
[5] Brady M C, Clark A M, Dickson S, et al. The impact of stroke-related dysarthria on social participation and implications for rehabilitation [J]. Disabil Rehabil, 2011, 33(3): 178-186.
[6] Johns D F. Clinical Management of Neurogenic Communicative Disorders [M]. Boston: Little, Brown and Company, 1978: 251-310.
[7] Mefferd A. Articulatory-to-acoustic relations in talkers with dysarthria: a first analysis [J]. J Speech Lang Hear Res, 2015, 58(3): 576-589.
[8] Kearney E, Giles R, Haworth B, et al. Sentence-level movements in Parkinson's disease: loud, clear, and slow speech [J]. J Speech Lang Hear Res, 2017, 60(12): 3426-3440.
[9] Goozee J V, Murdoch B E, Theodoros D G, et al. Kinematic analysis of tongue movements in dysarthria following traumatic brain injury using electromagnetic articulography [J]. Brain Inj, 2000, 14(2): 153-174.
[10] Chen Y T, Murdoch B E, Goozee J V. Electromagnetic articulographic assessment of tongue function in dysarthric and non-dysarthric speakers following stroke [J]. J Med Speech Lang Pa, 2008, 16(1): 21-32.
[11] Lee J, Pond A L, Sincavage J. Tongue and lower lip movement in semivowel/w/production [J]. Folia Phoniatr Logop, 2016, 68(1): 46-51.
[12] Mefferd A S. Tongue- and jaw-specific contributions to acoustic vowel contrast changes in the diphthong /ai/ in response to slow, loud, and clear speech [J]. J Speech Lang Hear Res, 2017, 60(11): 3144-3158.
[13] Green J R, Moore C A, Higashikawa M, et al. The physiologic development of speech motor control: lip and jaw coordination [J]. J Speech Lang Hear Res, 2000, 43(1): 239-255.
[14] Bartle C J, Goozee J V, Scott D, et al. EMA assessment of tongue-jaw co-ordination during speech in dysarthria following traumatic brain injury [J]. Brain Inj, 2006, 20(5): 529-545.
[15] 吴民华,陈旸,王芷琪. 电磁构音图谱仪对神经控制异常性构音障碍粤语患者说话时舌头运动的研究[J]. 康复学报, 2016, 26(5): 8-16, 24.
[16] 张清丽. 言语语言障碍的现代康复[J]. 中国康复, 1996, 11(2): 87-90.
[17] 张丞然. 对构音障碍的发音空间和声学特征的分析研究[D]. 天津:天津大学, 2014.
[18] Murdoch B E. Dysarthria: A Physiological Approach to Assessment and Treatment [M]. Cheltenham, UK: Stanely Thornes, 1998: 337-372.
[19] Kuehn D P. A cineradiographic study of VC and CV articulatory velocities [J]. J Phon, 1976, 4(4): 303-320.
[20] Rudzicz F, Namasivayam A K, Wolff T. The TORGO database of acoustic and articulatory speech from speakers with dysarthria [J]. Lang Resour Eval, 2012, 46(4): 523-541.
[21] Goozee J V, Murdoch B E, Theodoros D G. Interlabial contact pressures exhibited in dysarthria following traumatic brain injury during speech and nonspeech tasks [J]. Folia Phoniatr Logop, 2002, 54(4): 177-189.
[22] Eisenfeld J, DeLisi C. Mathematics and Computers in Biomedical Applications [M]. Amsterdam: Elsevier, 1985: 363-371.
[23] Ziegler W. To speak or not to speak: distinctions between speech and non-speech motor control [J]. Aphasiology, 2003,17(2): 99-105.
[24] McClean M D, Clay J L. Activation of lip motor units with variations in speech rate and phonetic structure [J]. J Speech Hear Res, 1995, 38(4): 772-782.
[25] McAuliffe M J, Ward E C, Bruce E M. Articulatory function in hypokinetic dysarthria: an electropalatographic examination of two cases [J]. J Med Speech Lang Pa, 2005, 13(2): 149-168.
[26] Kent R, Netsell R. Articulatory abnormalities in athetoid cerebral palsy [J]. J Speech Hear Disord, 1978, 43(3): 353-373.
[27] Lee J, Bell M, Simmons Z. Articulatory kinematic characteristics across the dysarthria severity spectrum in individuals with amyotrophic lateral sclerosis [J]. Am J Speech Lang Pathol, 2018, 27(1): 258-269.
[28] Mooshammer C, Geumann A, Hoole P, et al. Coordination of lingual and mandibular gestures for different manners of articulation [C]. Barcelona, Spain: 15th International Congress of Phonetic Sciences, 2003: 81-84.
[29] Green J R, Moore C A, Higashikawa M, et al. The physiologic development of speech motor control: lip and jaw coordination [J]. J Speech Lang Hear Res, 2000, 43(1): 239-255.
[30] Weismer G, Yunusova Y, Bunton K. Measures to evaluate the effects of DBS on speech production [J]. J Neurolinguistics, 2012, 25(2): 74-94.
[31] Yunusova Y, Weismer G, Westbury J R, et al. Articulatory movements during vowels in speakers with dysarthria and healthy controls [J]. J Speech Lang Hear Res, 2008, 51(3): 596-611.
[32] MacKenzie C, Muir M, Allen C, et al. Non-speech oro-motor excises in post-stroke dysarthria intervention: a randomized feasibility trial [J]. Int J Lang Commun Disord, 2014, 49(5): 602-617.
[33] Lansford K L, Liss J M. Vowel acoustics in dysarthria: speech disorder diagnosis and classification [J]. J Speech Lang Hear Res, 2014, 57(1): 57-67.
