Macpherson, Megan

Publications

• Abur, D., MacPherson, M. K., Shembel, A. C., & Stepp, C. E. (2023). Acoustic measures of voice and physiologic measures of autonomic arousal during speech as a function of cognitive load in older adults. Journal of Voice, 37(2), 194-202. https://doi.org/10.1016/j.jvoice.2020.12.027.
• Brice, A. E., Salnaitis, C., & MacPherson, M. K. (2023). Neural activation in bilinguals and monolinguals using a word identification task. Languages - Special Issue: Current Trends and Future Directions in Bilingual Language Acquisition, 8(216), 1-27. https://doi.org/10.3390/languages8030216.
• Exner, A. H., Francis, A. L., MacPherson, M. K., Darling White, M., & Huber, J. E. (2023). The effects of speech task on lexical stress in Parkinson disease. American Journal of Speech-Language Pathology, 32, 506-522. https://doi.org/10.1044/2022_AJSLP-22-00185.
• Douglas, N. F., & MacPherson, M. K. (2021). Positive changes in certified nursing assistants’ communication behaviors with people with dementia: Feasibility of a coaching strategy. American Journal of Speech-Language Pathology, 20, 239-252. https://doi.org/10.23641/asha.13564811.
• MacPherson, M. K. (2019). Cognitive load affects speech motor performance differently in older and younger adults. Journal of Speech, Language, and Hearing Research, 1258-1277. https://doi.org/10.1044/2018_JSLHR-S-17-0222.
• Johnson, R. K., Lasker, J. P., Stierwalt, J. A. G., MacPherson, M. K., & LaPointe, L. L. (2017). Motor learning guided treatment for acquired apraxia of speech: a case study investigating factors that influence treatment outcomes. Speech, Language and Hearing, 21(4), 213-223. https://doi.org/10.1080/2050571X.2017.1388488.
• MacPherson, M. K., Abur, D., & Stepp, C. E. (2017). Acoustic measures of voice and physiologic measures of autonomic arousal during speech as a function of cognitive load. Journal of Voice, 31(4), 504.e1-504.e9. https://doi.org/10.1016/j.jvoice.2016.10.021.
• Francis, A. L., MacPherson, M. K., Chandrasekaran, B., & Alvar, A. M. (2016). Autonomic nervous system responses during perception of masked speech may reflect constructs other than subjective listening effort. Frontiers in Psychology, 7 (Article 263), 1-15. https://doi.org/10.3389/fpsyg.2016.00263.
• Arnold, H., MacPherson, M. K., & Smith, A. (2014). Autonomic correlates of speech versus nonspeech tasks in children and adults. Journal of Speech, Language, and Hearing Research, 57, 1296-1307. https://doi:10.1044/2014_JSLHR-S-12-0265.
• Kaganovich, N., Kim, J., Herring, C., Schumaker, J., MacPherson, M. K., & Weber-Fox, C. (2013). Musicians show general enhancement of complex sound encoding and better inhibition of irrelevant auditory change in music: An ERP study. European Journal of Neuroscience, 37, 1295-1307. https://doi:10.1111/ejn.12110.
• Kemmerer, D., Miller, L., MacPherson, M. K., Huber, J., & Tranel, D. (2013). An investigation of semantic similarity judgments about action and non-action verbs in Parkinson's disease: Implications for the Embodied Cognition Framework. Frontiers in Human Neuroscience, 7, 1-19. https://doi.org/10.3389/fnhum.2013.00146.
• MacPherson, M. K., & Smith, A. (2013). Influences of sentence length and syntactic complexity on the speech motor control of children who stutter. Journal of Speech, Language, and Hearing Research, 56, 89-102. https://doi.org/10.1044/1092-4388(2012/11-0184).
• MacPherson, M. K., Huber, J. E., & Snow, D. P. (2011). The intonation-syntax interface in the speech of individuals with Parkinson's disease. Journal of Speech, Language, and Hearing Research, 54, 19-32. https://doi.org/10.1044/1092-4388(2010/09-0079).
• Sheffert, S., MacPherson, M. K., & Wilson, M. (2003). The influence of multimodality, talker variability, and noise on immediate serial recall. Cognitive Technology, 8(2), 42-50.

Presentations

• MacPherson, M. K. (2023, November 16-18). Autonomic correlates of physiological and cognitive-linguistic task demands in healthy older adults. [Poster technical session]. Annual Convention of the American Speech-Language-Hearing Association, Virtual – Boston, MA, United States.
• MacPherson, M. K., Ayotte, S., Ingalls, E., Merrow, O., Terry, A., & Kinnicutt, P. (2023, November 16-18). Effect of Parkinson’s disease on autonomic function for speech production. [Oral technical session]. Annual Convention of the American Speech-Language-Hearing Association, Virtual – Boston, MA, United States.
• Ingalls, E., & MacPherson, M. K. (2023, April 12). Interrater reliability of autonomic nervous system measurements in healthy older adults and individuals with Parkinson's disease. [Poster presentation]. 6th Annual Herbert H. & Grace A. Dow College of Health Professions Research Symposium, Mount Pleasant, MI, United States.
• MacPherson, M. K. (2023, April 12). Individual differences and group trends in sympathetic activation in speakers with Parkinson’s disease. [Poster presentation]. 6th Annual Herbert H. & Grace A. Dow College of Health Professions Research Symposium, Mount Pleasant, MI, United States.
• MacPherson, M. K. (2022, November 17-19). Heterogeneity of autonomic response profiles across speech tasks in individuals with Parkinson's disease. [Oral technical session]. Annual Convention of the American Speech-Language-Hearing Association, Virtual – New Orleans, LA, United States.
• MacPherson, M. K. (2022, October 21). A holistic approach to Childhood Onset Fluency Disorder. Invited oral presentation at the Communication is Central Professional Learning Event Series, Department of Communication Sciences and Disorders-Central Michigan University, Mount Pleasant, MI, United States.
• MacPherson, M. K. (2021, November 18-20). The autonomic-cognitive-speech relationship in healthy aging: Expanded findings. [Oral technical session]. Annual Convention of the American Speech-Language-Hearing Association, Virtual – Washington, D.C., United States.
• MacPherson, M. K. (2021, November 18-20). Effect of dysautonomia in Parkinson's disease on pre-speech resting levels of autonomic function. [Poster technical session]. Annual Convention of the American Speech-Language-Hearing Association, Virtual – Washington, D.C., United States.
• MacPherson, M. K. (2020, November 19-21). Age-related differences in the autonomic-cognitive relationship during speech production: Expanded findings. [Poster technical session proposal accepted]. Annual Convention of the American Speech-Language-Hearing Association, San Diego, CA, United States. (Convention canceled due to COVID-19).
• MacPherson, M. K. (2020, November 19-21). Effect of Parkinson's disease on pre-speech resting measures of autonomic nervous system function. [Poster technical session proposal accepted]. Annual Convention of the American Speech-Language-Hearing Association, San Diego, CA, United States. (Convention canceled due to COVID-19). 
• Lingo, S., Lodewyk, A., MacPherson, M. K., Affoo, R. H., & Lehman, M. (2020, March 19-21). Relationship between physical health status and acoustic measures of voice. [Poster presentation proposal accepted]. Annual Conference of the Michigan Speech-Language-Hearing Association, Detroit, MI, United States. (Conference canceled due to COVID-19).
• Lodewyk, A., Lingo, S., Affoo, R., Lehman, M., & MacPherson M. K. (2020, March 19-21). Normative acoustic voice data of healthy college-aged adults living in Michigan. [Poster presentation proposal accepted]. Annual Conference of the Michigan Speech-Language-Hearing Association, Detroit, MI, United States. (Conference canceled due to COVID-19).
• Ingvalson, E. M., MacPherson, M. K., & Lansford, K. L. (2019, November 14-19). [Spoken presentation]. Perceiving and comprehending dysarthric speech. 60th Annual Meeting of the Psychonomic Society, Montreal, QC, Canada.
• MacPherson, M. K. (2019, November 21-23). Effects of task repetition on autonomic nervous system function in individuals with Parkinson’s disease. [Poster technical session]. Annual Convention of the American Speech-Language-Hearing Association, Orlando, FL, United States.
• MacPherson, M. K. (2019, April 2). Cognitive load during sentence production differentially affects older and younger adults’ speech motor performance. [Poster presentation]. 2nd Annual Herbert H. and Grace A. Dow College of Health Professions Research Symposium, Mount Pleasant, MI, United States.
• MacPherson, M. K. (2018, November 15-18). Lower lip articulatory function as related to cognitive load in older adults. [Poster technical session]. Annual Convention of the American Speech-Language-Hearing Association, Boston, MA, United States.

• Certificate of Clinical Competence in Speech Language Pathology (CCC-SLP)
  
• Faculty Excellence Exhibition Nominee, Central Michigan University
• Award for Continuing Education, American Speech-Language-Hearing Association
• Editor's Award- Journal of Speech, Language, and Hearing Research
  • MacPherson, M. K., & Smith, A. (2013). Influences of sentence length and syntactic complexity on the speech motor control of children who stutter. Journal of Speech, Language, and Hearing Research, 56, 89-102. https://doi.org/10.1044/1092-4388(2012/11-0184).

• PhD, Speech Science and Gerontology, Purdue University
• MA, Speech-Language Pathology, Central Michigan University
• BS, Communication Disorders, Central Michigan University

• Speech motor control
• Speech physiology
• Healthy aging
• Parkinson’s disease
• Cognition
• Autonomic nervous system
• Childhood onset fluency disorder/developmental stuttering

• Acoustical Society of America
• American Speech-Language-Hearing Association
• Gerontological Society of America
• Michigan Speech-Language-Hearing Association
• Society for Neuroscience
• Society for Psychophysiological Research 

• Holder, Speech-Language Pathology, State of Michigan
• SPEAK OUT! Therapy for Parkinson's Disease Licensed Provider, Parkinson Voice Project