Data-based articles evaluating the efficacy of the LSVT LOUD in Parkinson’s and atypical PD
**Finnimore, A., Theodoros, D., & Rumbach, A. (2022). The Impact of PD Check-In, a Model for Supported Self-Managed Maintenance of Speech on the Quality of Life of People with Parkinson’s Disease: A Phase 1 Study. Brain Sciences, 12(4), 433. https://doi.org/10.3390/brainsci12040433
**Hemsley, B., & Gregory, C. (2022). People with Parkinson’s disease who succeed in the LSVT LOUD® treatment also report significant improvement in communication effectiveness, vocal disability, and communicative participation1. Evidence-Based Communication Assessment and Intervention, 16(1), 17–23. https://doi.org/10.1080/17489539.2022.2060041
Moya-Galé, G., Spielman, J., Ramig, L. A., Campanelli, L., & Maryn, Y. (2022). The Acoustic Voice Quality Index (AVQI) in People with Parkinson’s Disease Before and After Intensive Voice and Articulation Therapies: Secondary Outcome of a Randomized Controlled Trial. Journal of Voice. https://doi.org/10.1016/j.jvoice.2022.03.014
Narayana, S., Franklin, C., Peterson, E., Hunter, E. J., Robin, D. A., Halpern, A., Spielman, J., Fox, P. T., & Ramig, L. O. (2022). Immediate and long‐term effects of speech treatment targets and intensive dosage on Parkinson’s disease dysphonia and the speech motor network: Randomized controlled trial. Human Brain Mapping, 43(7), 2328–2347. https://doi.org/10.1002/hbm.25790
**Finnimore, A., Theodoros, D., & Rumbach, A. F. (2021). PD Check‐In: The development and trial of a supported self‐management program for people with Parkinson’s disease following intensive speech intervention. International Journal of Language & Communication Disorders, 57(1), 138–151. https://doi.org/10.1111/1460-6984.12682\
**Konnai, R., van Harn, M., & Silbergleit, A. (2021). Conversational Vocal Intensity in Parkinson’s Disease: Treatment and Environmental Comparisons. Journal of Voice. https://doi.org/10.1016/j.jvoice.2021.04.019
**Li, Y., Tan, M., Fan, H., Wang, E. Q., Chen, L., Li, J., Chen, X., & Liu, H. (2021). Neurobehavioral Effects of LSVT® LOUD on Auditory-Vocal Integration in Parkinson’s Disease: A Preliminary Study. Frontiers in Neuroscience, 15, 1–12. https://doi.org/10.3389/fnins.2021.624801
Schulz, G., Halpern, A., Spielman, J., Ramig, L., Panzer, I., Sharpley, A., & Freeman, K. (2021). Single Word Intelligibility of Individuals with Parkinson’s Disease in Noise: Pre-Specified Secondary Outcome Variables from a Randomized Control Trial (RCT) Comparing Two Intensive Speech Treatments (LSVT LOUD vs. LSVT ARTIC). Brain sciences, 11(7), 857. https://doi.org/10.3390/brainsci11070857
**Scobie, S., Jowett, S., Lambe, T., Patel, S., Woolley, R., Ives, N., Rick, C., Smith, C., Brady, M. C., Clarke, C., & Sackley, C. (2021). Lee Silverman Voice Treatment versus standard speech and language therapy versus control in Parkinson’s disease: preliminary cost-consequence analysis of the PD COMM pilot randomised controlled trial. Pilot and Feasibility Studies, 7(1). https://doi.org/10.1186/s40814-021-00888-y
**Bryans, L. A., Palmer, A. D., Anderson, S., Schindler, J., & Graville, D. J. (2021). The impact of Lee Silverman Voice Treatment (LSVT LOUD®) on voice, communication, and participation: Findings from a prospective, longitudinal study. Journal of communication disorders, 89, 106031. https://doi.org/10.1016/j.jcomdis.2020.106031
*Li, Q., Millard, K., Tetnowski, J., Narayana, S., & Cannito, M. (2021). Acoustic analysis of intonation in persons With Parkinson’s disease receiving transcranial magnetic stimulation and intensive voice treatment. Journal of Voice, S0892-1997(20), 30475–6. Advance online publication. https://doi.org/10.1016/j.jvoice.2020.12.019
**Nozaki, S., Fujiu-Kurachi, M., Tanimura, T., Ishizuka, K., Miyata, E., Sugishita, S., Imai, T., Nishiguchi, M., Furuta, M., & Yorifuji, S. (2021). Effects of Lee Silverman Voice Treatment (LSVT LOUD) on Swallowing in Patients with Progressive Supranuclear Palsy: A Pilot Study. Progress in Rehabilitation Medicine, 6, 20210012. https://doi.org/10.2490/prm.20210012
Levy, E., Moya-Galé, G., Chang, Y., Freeman, K., Forrest, K., Brin, M. F., & Ramig, L.A. (2020). The effects of intensive speech treatment on intelligibility in Parkinson’s disease: A randomised controlled trial. The Lancet’s EClinicalMedicine, 24, 1–11. https://doi.org/10.1016/j.eclinm.2020.100429
Nightingale, C., Swartz, M., Ramig, L. O., & McAllister, T. (2020). Using crowdsourced listeners’ ratings to measure speech changes in hypokinetic dysarthria: A proof-of-concept study. American Journal of Speech-Language Pathology, 29(2), 873–882. https://doi.org/10.1044/2019_AJSLP-19-00162
**Nakayama, K., Yamamoto, T., Oda, C., Sato, M., Murakami, T., & Horiguchi, S. (2020). Effectiveness of Lee Silverman Voice Treatment® LOUD on Japanese-speaking patients with Parkinson’s disease. Rehabilitation Research and Practice, 2020. https://doi.org/10.1155/2020/6585264
**Sackley, C. M., Rick, C., Au, P., Brady, M. C., Beaton, G., Burton, C., Caulfield, M., Dickson, S., Dowling, F., Hughes, M., Ives, N., Jowett, S., Masterson-Algar, P., Nicoll, A., Patel, S., Smith, C. H., Woolley, R., & Clarke, C. E. (2020). A multicentre, randomised controlled trial to compare the clinical and cost-effectiveness of Lee Silverman Voice Treatment versus standard NHS Speech and Language Therapy versus control in Parkinson’s disease: a study protocol for a randomised controlled trial. Trials, 21(1). https://doi.org/10.1186/s13063-020-04354-7
**Alharbi, G. G., Cannito, M. P., Buder, E. H., & Awan, S. N. (2019). Spectral/cepstral analyses of phonation in Parkinson’s disease before and after voice treatment: A preliminary study. Folia Phoniatrica et Logopaedica, 71(5-6), 275–285. https://doi.org/10.1159/000495837
**Saffarian, A., Amiri Shavaki, Y., Shahidi, G. A., Hadavi, S., & Jafari, Z. (2019). Lee Silverman Voice Treatment (LSVT) mitigates voice difficulties in mild Parkinson’s disease. Medical Journal of the Islamic Republic of Iran, 33. https://doi.org/10.34171/mjiri.33.5
** Baumann, A., Nebel, A., Granert, O., Giehl, K., Wolff, S., Schmidt, W., Baasch, C., Schmidt, G., Witt, K., Deuschl, G., Hartwigsen, G., Zeuner, K. E., & van Eimeren, T. (2018). Neural correlates of hypokinetic dysarthria and mechanisms of effective voice treatment in Parkinson disease. Neurorehabilitation and Neural Repair, 32(12), 1055–1066. https://doi.org/10.1177/1545968318812726
Ramig, L. O., Halpern, A., Spielman, J., Fox, C., & Freeman, K. (2018). Speech treatment in Parkinson’s Disease: Randomized controlled trial (RCT). Movement Disorders, 33(11), 1777–1791. https://doi.org/10.1002/mds.27460
**Moya-Galé, G., Goudarzi, A., Bayés, A., McAuliffe, M., Bulté, B., & Levy, E. S. (2018). The effects of intensive speech treatment on conversational intelligibility in Spanish speakers with Parkinson’s disease. American Journal of Speech-Language Pathology, 27(1), 154–165. https://doi.org/10.1044/2017_AJSLP-17-0032
**Miles, A., Jardine, M., Johnston, F., de Lisle, M., Friary, P., & Allen J. (2017). Effect of Lee Silverman Voice Treatment (LSVT LOUD®) on swallowing and cough in Parkinson’s disease: A pilot study. Journal of the Neurological Sciences, 383, 180–187. https://doi.org/10.1016/j.jns.2017.11.015
**Sale, P., Castiglioni, D., De Pandis, M. F., Torti, M., Dall’armi, V., Radicati, F. G., & Stocchi, F. (2015). The Lee Silverman Voice Treatment (LSVT®) speech therapy in progressive supranuclear palsy. European Journal of Physical and Rehabilitation Medicine, 51(5), 569–574. PMID: 26138088
**Sauvageau, V. M., Roy, J. P., Langlois, M., & Macoir, J. (2015). Impact of the LSVT on vowel articulation and coarticulation in Parkinson’s disease. Clinical Linguistics & Phonetics, 29(6), 424–440. https://doi.org/10.3109/02699206.2015.1012301
Dumer, A. I., Oster, H., McCabe, D., Rabin, L. A., Spielman, J. L., Ramig, L. O., & Borod, J. C. (2014). Effects of the Lee Silverman Voice Treatment on hypomimia in Parkinson’s disease. Journal of the International Neuropsychological Society, 20(3), 302–312. https://doi.org/10.1017/S1355617714000046
**Cannito, M. P., Suiter, D. M., Beverly, D., Chorna, L., Wolf, T., & Pfeiffer, R. M. (2012). Sentence intelligibility before and after voice treatment in speakers with idiopathic Parkinson’s disease. Journal of Voice, 26(2), 214–219. https://doi.org/10.1016/j.jvoice.2011.08.014
**Whitehill, T. L., Kwan, L., Lee, F. P.-H., & Chow, M. M.-N. (2011). Effect of LSVT on lexical tone in speakers with Parkinson’s disease. Parkinson’s Disease, 2011. http://doi.org/10.4061/2011/897494
Spielman, J., Mahler, L., Halpern, A., Gilley, P., Klepitskaya, O., & Ramig. L. (2011). Intensive voice treatment (LSVT® LOUD) for Parkinson’s disease following deep brain stimulation of the subthalamic nucleus. Journal of Communication Disorders, 44(6), 688–700. https://doi.org/10.1016/j.jcomdis.2011.05.003
Narayana, S., Fox, P. T., Zhang, W., Franklin, C., Robin, D. A., Vogel, D., & Ramig, L. O. (2010). Neural correlates of efficacy of voice therapy in Parkinson’s disease identified by performance–correlation analysis. Human Brain Mapping, 31(2), 222–236. https://doi.org/10.1002/hbm.20859
Sapir, S., Ramig, L., Spielman, J., & Fox, C. (2010). Formant centralization ratio (FCR): A proposal for a new acoustic measure of dysarthric speech. Journal of Speech, Language, and Hearing Research, 53(1), 114–125. https://dx.doi.org/10.1044%2F1092-4388(2009%2F08-0184)
Sapir, S., Spielman, J., Ramig, L., Story, B., & Fox, C. (2007). Effects of intensive voice treatment (LSVT®) on vowel articulation in dysarthric individuals with idiopathic Parkinson disease: Acoustic and perceptual findings. Journal of Speech, Language, and Hearing Research, 50(4), 899–912. https://doi.org/10.1044/1092-4388(2007/064)
Spielman, J., Ramig, L., Mahler, L., Halpern, A., & Gavin, W. J. (2007). Effects of an extended version of the Lee Silverman Voice Treatment on voice and speech in Parkinson’s disease. American Journal of Speech-Language Pathology, 16(2), 95–107. https://doi.org/10.1044/1058-0360(2007/014)
**Whitehill, T. L., & Wong, L. N. (2007). Effect of intensive voice treatment on tone-language speakers with Parkinson’s disease. Clinical Linguistics and Phonetics, 21(11-12), 919–925. https://doi.org/10.1080/02699200701602045
Huber, J., Stathopoulos, E., Ramig, L., & Lancaster, S. (2003). Respiratory function and variability in individuals with Parkinson disease: Pre- and post-Lee Silverman Voice Treatment (LSVT®). Journal of Medical Speech-Language Pathology, 11(4), 185–201.
Liotti, M., Ramig, L., Vogel, D., New, P., Cook, C., Ingham, R. J., Ingham, J. C., & Fox, P. (2003).
Hypophonia in Parkinson’s disease: Neural correlates of voice treatment revealed by PET. Neurology, 60(3), 432–440. https://doi.org/10.1212/wnl.60.3.432
Spielman, J., Borod, J., & Ramig. L. (2003). Effects of intensive voice treatment (LSVT®) on facial expressiveness in Parkinson disease: Preliminary data. Cognitive and Behavioral Neurology, 16(3), 177–188. https://doi.org/10.1097/00146965-200309000-00005
El Sharkawi, A., Ramig, L., Logemann, J., Pauloski, B., Rademaker, A., Smith, C., Pawlas, A., Baum, A., & Werner, C. (2002). Swallowing and voice effects of Lee Silverman Voice Treatment (LSVT®): A pilot study. Journal of Neurology, Neurosurgery, and Psychiatry, 72(1), 31–36. http://doi.org/10.1136/jnnp.72.1.31
Sapir, S., Ramig, L., Hoyt, P, Countryman, S., O’Brien, C., & Hoehn, M. (2002). Speech loudness and quality 12 months after intensive voice treatment (LSVT) for Parkinson’s disease: A comparison with an alternative speech treatment. Folia Phoniatrica et Logopaedica, 54(6), 296–303. https://doi.org/10.1159/000066148
Baumgartner, C., Sapir, S., & Ramig, L. (2001). Voice quality changes following phonatory-respiratory effort treatment (LSVT®) versus respiratory effort treatment for individuals with Parkinson disease. Journal of Voice, 15(1), 105–114. https://doi.org/10.1016/s0892-1997(01)00010-8
Ramig, L., Sapir, S., Countryman, S., Pawlas, A., O’Brien, C., Hoehn, M., & Thompson, L. (2001).
Intensive voice treatment (LSVT®) for patients with Parkinson’s disease: A 2 year follow up. Journal of Neurology, Neurosurgery, and Psychiatry, 71(4), 493–498. http://doi.org/10.1136/jnnp.71.4.493
Ramig, L., Sapir, S., Fox, C., & Countryman, S. (2001). Changes in vocal loudness following intensive voice treatment (LSVT®) in individuals with Parkinson’s disease: A comparison with untreated patients and normal age-matched controls. Movement Disorders, 16(1), 79–83. https://doi.org/10.1002/1531-8257(200101)16:1%3C79::aid-mds1013%3E3.0.co;2-h
Countryman, S., Hicks, J., Ramig, L., & Smith, M. (1997). Supraglottal hyperadduction in an individual with Parkinson disease: A clinical treatment note. American Journal of Speech-Language Pathology, 6(4), 74–84. https://doi.org/10.1044/1058-0360.0604.74
Ramig, L., Countryman, S., O’Brien, C., Hoehn, M., & Thompson, L. (1996). Intensive speech treatment for patients with Parkinson’s disease: Short- and long-term comparison of two techniques. Neurology, 47(6), 1496–1504. https://doi.org/10.1212/wnl.47.6.1496
Ramig, L., & Dromey, C. (1996). Aerodynamic mechanisms underlying treatment related changes in vocal intensity in patients with Parkinson disease. Journal of Speech and Hearing Research, 39(4), 798–807. https://doi.org/10.1044/jshr.3904.798
Dromey, C., Ramig, L., & Johnson, A. B. (1995). Phonatory and articulatory changes associated with increased vocal intensity in Parkinson disease: A case study. Journal of Speech and Hearing Research, 38(4), 751–764. https://doi.org/10.1044/jshr.3804.751
Ramig, L., Countryman, S., Thompson, L., & Horii, Y. (1995). Comparison of two forms of intensive speech treatment for Parkinson disease. Journal of Speech and Hearing Research, 38(6), 1232–1251. https://doi.org/10.1044/jshr.3806.1232
Smith, M. E., Ramig, L., Dromey, C., Perez, K. S., & Samandari, R. (1995). Intensive voice treatment in Parkinson disease: Laryngostroboscopic findings. Journal of Voice, 9(4), 453–459. https://doi.org/10.1016/s0892-1997(05)80210-3
Countryman, S., Ramig, L., & Pawlas, A. (1994). Speech and voice deficits in Parkinsonian plus syndromes: Can they be treated? Journal of Medical Speech-Language Pathology, 2(3), 211–225.
Ramig, L., Bonitati, C. M., Lemke, J. H., & Horii, Y. (1994). Voice treatment for patients with Parkinson disease: Development of an approach and preliminary efficacy data. Journal of Medical Speech-Language Pathology, 2(3), 191–209.
Countryman, S., & Ramig, L. (1993). Effects of intensive voice therapy on voice deficits associated with bilateral thalamotomy in Parkinson’s disease: A case study. Journal of Medical Speech-Language Pathology, 1, 233–250.