1. Motor speech disorders
2. Voice disorders
My research addresses normal and disordered speech motor control, voice, and speech breathing. Most of my research with disordered subjects deals with Parkinson's disease. Lately, I am focusing on oromotor assessment techniques, and beginning to consider treatment issues.
Peer-Reviewed Publications
Solomon, N. P. & Robin, D. A. (in press). Perceptions of effort during handgrip and tongue elevation in Parkinson's Disease. Parkinsonism & Related Disorders.
Solomon, N. P. (2004). Assessment of weakness and fatigue of the tongue [Invited]. International Journal of Orofacial Myology, 30, 8-19.
Solomon, N. P., Makashay, M. J., Kessler, L. S. & Sullivan, K. W. (2004). Speech-breathing treatment and LSVT for a patient with hypokinetic-spastic dysarthria after TBI. Journal of Medical Speech-Language Pathology, 12, 213-220.
Munson, B. & Solomon, N. P. (2004). The effects of phonological neighborhood density on vowel articulation. Journal of Speech, Language, and Hearing Research, 47, 1048-1058.
Jiang, J., Stern, J., Chen, H.-J. & Solomon, N. P. (2004). Vocal efficiency measurements in subjects with vocal polyps and nodules: A preliminary report. Annals of Otology, Rhinology & Laryngology, 113, 277-282.
Solomon, N. P. & Munson, B. (2004). The effect of jaw position on measures of tongue strength and endurance. Journal of Speech, Language, and Hearing Research, 47, 584-594.
Milbrath, R. L. & Solomon, N. P. (2003). Do vocal warm-up exercises alleviate vocal fatigue? Journal of Speech, Language, and Hearing Research, 46, 422-436.
Solomon, N. P., Glaze, L. E., Arnold , R. R. & van Mersbergen, M. (2003). Effects of a vocally fatiguing task and systemic hydration on men's voices. Journal of Voice, 17, 31-46.
Solomon, N. P., Drager, K. D. R., & Luschei, E. S. (2002). Sustaining a constant effort by the tongue and hand: Effects of acute fatigue. Journal of Speech, Language, and Hearing Research, 45, 613-624.
Solomon, N. P., McKee, A. S. & Garcia-Barry, S. (2001). Intensive voice treatment and respiration treatment for hypokinetic-spastic dysarthria after traumatic brain injury. American Journal of Speech-Language Pathology, 10, 51-64.
Solomon, N. P. (2000). Changes in normal speech after fatiguing the tongue. Journal of Speech, Language, and Hearing Research, 43, 1416-1428.
Solomon, N. P. & DiMattia, M. S. (2000). Effects of a vocally fatiguing task and systemic hydration on phonation threshold pressure. Journal of Voice, 14, 341-362.
Solomon, N. P., Garlitz, S. J. & Milbrath, R. L. (2000). Respiratory and laryngeal contributions to maximum phonation duration. Journal of Voice, 14, 331-340.
Solomon, N. P., McKee, A. S., Larson, K. J., Nawrocki, M. D., Tuite, P. J., Eriksen, S., Low, W. C. & Maxwell, R. E. (2000). Effects of pallidal stimulation on speech in three men with severe Parkinson's disease. American Journal of Speech-Language Pathology, 9, 241-256.
Solomon, N. P., Robin, D. A. & Luschei, E. S. (2000). Strength, endurance, and stability of the tongue and hand in Parkinson disease . Journal of Speech, Language, and Hearing Research, 43, 256-267.
Solomon, N. P. & Charron, S. (1998). Speech breathing in able-bodied children and children with cerebral palsy: A review of the literature and implications for clinical intervention. American Journal of Speech-Language Pathology, 7, 61-78.
Jaffe, D. M., Solomon, N. P., Robinson, R. A., Hoffman, H. T. & Luschei, E. S. (1998). Comparison of concentric needle versus hooked-wire electrodes in the canine larynx. Otolaryngology - Head & Neck Surgery, 118, 655-662.
Liu, K., Solomon, N.P. & Luschei, E.S. (1998). Midbrain regions for eliciting vocalization by electrical stimulation in anesthetized dogs. Annals of Otology, Rhinology & Laryngology, 107, 977-986.
Solomon, N. P., Robin, D. A., Mitchinson, S. I., VanDaele, D. J. & Luschei, E. S. (1996). Sense of effort and the effects of fatigue in the tongue and hand. Journal of Speech and Hearing Research, 39, 114-125.
Solomon, N. P., Lorell, D. M., Robin, D. A., Rodnitzky, R. L. & Luschei, E. S. (1995). Tongue strength and endurance in mild to moderate Parkinson's disease. Journal of Medical Speech-Language Pathology, 3, 15-26.
Solomon, N. P., Luschei, E. S. & Liu, K. (1995). Fundamental frequency and tracheal pressure during three types of vocalizations elicited from anesthetized dogs. Journal of Voice, 9, 403-412.
Hsiao, T.-Y., Solomon, N. P., Luschei, E. S. & Titze, I. R. (1994). Modulation of fundamental frequency by laryngeal muscles during vibrato. Journal of Voice, 8, 224-229.
Hsiao, T.-Y., Solomon, N. P., Luschei, E. S., Titze, I. R., Liu, K., Fu, T.-C. & Hsu, M.-M. (1994). Effect of subglottic pressure on fundamental frequency of the canine larynx with active muscle tensions. Annals of Otology, Rhinology and Laryngology, 103, 817-821.
Titze, I. R., Solomon, N. P., Luschei, E. S. & Hirano, M. (1994). Interference between normal vibrato and artificial stimulation of laryngeal muscles at near-vibrato rates. Journal of Voice, 8, 215-223.
Hoit, J. D., Solomon, N. P. & Hixon, T. J. (1993). The effect of lung volume on voice onset time (VOT). Journal of Speech and Hearing Research, 36, 516-521.
Solomon, N. P. & Hixon, T. J. (1993). Speech breathing in Parkinson's disease. Journal of Speech and Hearing Research, 36, 294-310.
Lansing, R. W., Solomon, N. P., Kossev, A. R. & Andersen, A. B. (1991). Recording single motor unit activity of human nasal muscles with surface electrodes: Applications for respiration and speech. Electroencephalography and Clinical Neurophysiology, 81, 167-175.
Stathopoulos, E. T., Hoit, J. D., Hixon, T. J., Watson, P. J. & Solomon, N. P. (1991). Respiratory and laryngeal function during whispering. Journal of Speech and Hearing Research, 34, 764-767.
Solomon, N. P., McCall, G. N., Trosset, M. W., & Gray, W. (1989). Laryngeal configuration and constriction during two types of whispering. Journal of Speech and Hearing Research, 32, 161-174.
Hixon, T. J., Watson, P. J., Harris, F. P. & Pearl, N. B. (1988). Relative volume changes of the rib cage and abdomen during prephonatory chest wall posturing. Journal of Voice, 2, 13-19.
Non-Peer-Reviewed Publications
Ballard, K. J., Solomon, N. P., Robin, D. A., Moon, J. B. & Folkins, J. W. (in press). In M. R. McNeil (Ed.), Clinical management of sensorimotor speech disorders (2nd Ed.). New York : Thieme Medical Publishers.
Robin, D. A., Solomon, N. P., Moon, J. B. & Folkins, J. W. (1997). Nonspeech assessment of the speech production mechanism. In M. R. McNeil (Ed.), Clinical management of sensorimotor speech disorders (pp. 49-62). New York : Thieme Medical Publishers.
Jaffe, D. M., Solomon, N. P. & Luschei, E. S. (1996). Activation of laryngeal muscle by electrical stimulation of the canine motor cortex. In P. J. Davis & N. H. Fletcher (Eds.), Vocal fold physiology: Controlling complexity and chaos (pp. 187-200). San Diego: Singular Publishing Group.
Solomon, N. P., Lorell, D. M., Robin, D. A., Rodnitzky, R. L. & Luschei, E. S. (1995). Tongue strength and endurance in mild to moderate Parkinson's disease. In D. A. Robin, K. M. Yorkston & D. R. Beukelman (Eds.), Disorders of motor speech: Recent advances in assessment, treatment, and clinical characterization, Baltimore: Paul H. Brookes. Reprinted from Journal of Medical Speech-Language Pathology, 3, 15-26, 1995.
Stierwalt, J. A. G., Robin, D. A., Solomon, N. P., Weiss, A. L. & Max, J. E. (1995). Tongue strength and endurance: Relation to the speaking ability of children and adolescents following traumatic brain injury. In D. A. Robin, K. M. Yorkston & D. R. Beukelman (Eds.), Disorders of motor speech: Recent advances in assessment, treatment, and clinical characterization (pp. 243-258). Baltimore: Paul H. Brooks.
Solomon, N. P. & Stierwalt, J. A. G. (1995). Strength and endurance training for dysarthria. In M. A. Workinger (Ed.), Special Interest Division 2: Neurophysiology and neurogenic speech and language disorders, Vol. 5, No. 3. Rockville, MD: American Speech-Language-Hearing Association.
Solomon, N. P., Robin, D. A., Lorell, D. M., Rodnitzky, R. L. & Luschei, E. S. (1994). Tongue function testing in Parkinson's disease: Indications of fatigue. In J. Till, K. Yorkston & D. Beukelman (Eds.), Motor speech disorders: Advances in assessment and treatment (pp. 147-160). Baltimore: Paul H. Brookes.
Gabelnick, F., Howarth, J. & Pearl , N. (1984). Intellectual development in university honors students. Proceedings of the 10th International Conference on Improving University Teaching, College Park, Maryland.
