Jason A. Whitfield, Ph.D., CCC-SLP

Educational Experience

Ph.D. [2014]. Communication Sciences and Disorders. Bowling Green State University. Dissertation: Speech Motor Sequence Learning in Parkinson Disease and Normal Aging: Acquisition, Consolidation, and Automatization

M.S. [2012]. Speech-Language Pathology. Bowling Green State University. Thesis: Pressures and Flows for a Convergent and Divergent Oblique Glottis of 15 Degrees

B.A. [2010]. Speech-Language Pathology & Audiology. University of North Texas.

B.A. [2010]. Music. University of North Texas.

Courses Taught

CDIS 3010: Anatomy and Physiology of the Speech Mechanism
CDIS 3020: Acoustics of Speech and Hearing
CDIS 6110: Motor Speech Disorders
CDIS 6190: Clinical Instrumentation
CDIS 6320: Cognitive Rehabilitation
CDIS 6760: Research Methods
CDIS 7610: Adv. Research Instrumentation
CDIS 7800: Speech Motor Control
CDIS 7820: Quantitative Methods in CSD

Certifications Held

Certificate of Clinical Competence in Speech-Language Pathology (CCC-SLP), granted by the American Speech-Language Hearing Association (ASHA).

Licensed Speech-Language Pathologist, State of Ohio.

Research Interests

Speech communication in people with Parkinson's disease

Effects of concurrent tasks on speech production

Race and Racism in Higher Education and Speech-Language Pathology

Awards

2024 Olscamp Research Award, Office of Sponsored Programs and Research, Bowling Green State University

2017-2018 Clyde R. Willis Faculty Development Award, College of Health and Human Services, Bowling Green State University

Grants

External Grants

Principle Investigator, Interprofessional Collaboration Research Grant, “Barriers to Equity for Students of Color in Health and Human Service Programs Association of Schools Advancing Health Professions. Funding period: June 2023 – June 2025

Co-Investigator, Building Strengths Internal Grant, “A study of the therapeutic effects of the Lee Silverman Voice Training (LSVT) approach on speech and swallowing dysfunction in people with Parkinson disease.” Bowling Green State University, Office of the Vice President for Research and Economic Development, Bowling Green State University, Funding period: May 1 – December 31, 2017.

Principle Investigator, Building Strengths Internal Grant, “Protocols for testing speech motor automaticity: Application to Parkinson.” Bowling Green State University, Office of the Vice President for Research and Economic Development, Bowling Green State University, Funding period: January 1 – December 31, 2016.

Internal Grants

Principle Investigator, Optimal Aging Institute Grant, “Effects of Lee Silverman Voice Treatment (LSVT) on dual-task interference between speech and non-speech tasks in speakers with Parkinson disease.” Bowling Green State University, Funding period: Feb 2018 –June 2019.

Co-Investigator, Building Strengths Internal Grant, “A study of the therapeutic effects of the Lee Silverman Voice Training (LSVT) approach on speech and swallowing dysfunction in people with Parkinson disease.” Bowling Green State University, Office of the Vice President for Research and Economic Development, Bowling Green State University, Funding period: May 1 – December 31, 2017.

Principle Investigator, Building Strengths Internal Grant, “Protocols for testing speech motor automaticity: Application to Parkinson.” Bowling Green State University, Office of the Vice President for Research and Economic Development, Bowling Green State University, Funding period: January 1 – December 31, 2016.

Recent Refereed Publications

Kriegel, Z., Fullenkamp, A. M., & Whitfield, J. A. (in press). Speech Kinematics and Perioral Muscle Activity are Influenced by Stroop Effects. Journal of Speech, Language, and Hearing Research.

Whitfield, J. A. (in press) Racial Inequities in Undergraduate Student Success: Implications for the Diversity of Allied Health Professions. Journal of Allied Health.

Neuhaus T., Scherer, R., & Whitfield, J. A. (2024). Gender Perception of Speech: Dependence on Fundamental Frequency, Implied Vocal Tract Length, and Source Spectral Tilt. Journal of Voice. doi: 10.1016/j.jvoice.2024.01.014.

Ghasemi, M., Mojiri, F., Whitfield, J. A., Haresabadi, F., Masumi, J. & Zainaee, S. (2024). Cross-Cultural Adaptation, Validation, and Diagnostic Accuracy of the Voice Fatigue Handicap Questionnaire-Persian Version Corresponding. Journal of Voice. doi: 10.1016/j.jvoice.2024.02.013.

Kriegel, Z. & Whitfield, J. A. (2024). Speaking Demands: Concurrent Visuomotor Rotor Pursuit Tracking Measures Cognitive Load for Speech. Speech, Language, and Hearing. doi: 10.1080/2050571X.2024.2317027.

Whitfield, J. A., Fullenkamp, A. M., & Kriegel, Z. (2023). Order Affects Clear and Loud Speech Response. Journal of Speech, Language, and Hearing Research, 66, 3871-3881. doi: 10.1044/2023_JSLHR-23-00028.

Coy, A. G. & Whitfield, J. A. (2023). Effect of Clear Speech on Acoustic Measures of Dysprosody in Parkinson Disease for Different Reading Tasks. International Journal of Speech-Language Pathology. 1-14. doi: 10.1080/17549507.2023.2240041.

Whitfield, J. A., Kriegel, Z., & Fullenkamp, A. M. (2023). Quantifying Spatial and Temporal Variability of Clear and Loud Speech Produced while Performing a Concurrent Visuomotor Task. Journal of Speech, Language, and Hearing Research, 66, 3182-3193. doi: 10.1044/2022_JSLHR-22-00289.

Gravelin A. C., Archer, B., Oddo, M., & Whitfield, J. A. (2023). Reliability of a Linguistic Segmentation Procedure specified by Systemic Functional Linguistics to Examine Extemporaneous Speech. Journal of Speech, Language, and Hearing Research, 66, 1280-1290. doi: 10.1044/2023_JSLHR-22-00554.

Reif, A. E., Summers, D. K., Whitfield, J. A., & Goberman, A. M. (2023). Prolonged central processing time for manual and vocal responses in Parkinson Disease: A psychological refractory period paradigm study. Journal of Speech, Language, and Hearing Research, 66, 461-474. doi: 10.1044/2022_JSLHR-22-00435.

Whitfield, J. A. (2023). Systemic Racism in Communication Sciences and Disorders Academic Programs: A Commentary on Trends in Racial Representation. American Journal of Speech-Language Pathology. 32, 381-390. doi: 10.1044/2022_AJSLP-22-00210.

Whitfield, J. A., Holdosh, S. R., Kriegel, Z., Sullivan, L. E., & Fullenkamp, A. M (2021). Tracking the costs of Clear and Loud Speech: Interactions between speech motor control and concurrent visuomotor tracking. Journal of Speech, Language, and Hearing Research, 64, 2181-2195. doi: 10.1044/2020_JSLHR-20-00264. [Erratum: 2023, v. 66, p. 2670].

Whitfield, J. A. & Holdosh, S. R. (2021). Practice mediates bidirectional dual-task interference when performing a novel sequential nonword repetition task. Journal of Speech, Language, and Hearing Research, 64, 1904-1917. doi: 10.1044/2021_JSLHR-20-00605.

Whitfield, J. A. (2020). Sources of Intraspeaker Variation in Parkinsonian Speech Related to Speaking Style. In: Godino-Llorente, J.I. (eds) Automatic Assessment of Parkinsonian Speech. AAPS 2019. Communications in Computer and Information Science, vol 1295. Springer, Cham. doi: 10.1007/978-3-030-65654-6_2.

Whitfield, J. A. (2019). Exploration of metrics for quantifying formant space in speakers with Parkinson Disease: Implications for vowel space assessment. Perspectives of the ASHA Special Interest Groups, 4, 402-410. doi: 10.1044/2019_PERS-SIG19-2018-0004.

Whitfield, J. A., Kriegel, Z., Fullenkamp, A. M., & Mehta, D. D. (2019). Bidirectional effects of concurrent manual task performance on connected speech acoustics in individuals with Parkinson disease. Journal of Speech, Language, and Hearing Research, 62, 2099-2117. doi: 10.1044/2019_JSLHR-S-MSC18-18-0190.

Whitfield, J. A. & Mehta, D. D. (2019). Examination of clear speech in Parkinson disease using measures of working vowel space. Journal of Speech, Language, and Hearing Research, 62, 2082-2098. doi: 10.1044/2019_JSLHR-S-MSC18-18-0189.

Gravelin, A. & Whitfield, J. A. (2019). Effects of clear speech on silent interval duration at syntactic and phonemic boundaries in speakers with Parkinson disease. American Journal of Speech-Language Pathology, 29, 793-806. doi: 10.1044/2018_AJSLP-MSC18-18-0102.

Perrine, B., Scherer, R. C., & Whitfield, J. A. (2019). Signal interpretation considerations when estimating subglottal pressure from oral air pressure. Journal of Speech, Language, and Hearing Research, 62(5), 1326-1337, DOI: 1044/2018_JSLHR-S-17-0432.

Whitfield, J. A. & Gravelin, A. (2019). Characterizing the distribution of silent intervals in the connected speech of individuals with Parkinson disease. Journal of Communication Disorders, 78, 10-32, DOI: 10.1016/j.jcomdis.2018.12.001.

Whitfield, J. A., Kriegel, Z., Fullenkamp, A. M., & Mehta, D. D. (in press). Bidirectional effects of concurrent manual task performance on connected speech acoustics in individuals with Parkinson disease. Journal of Speech, Language, and Hearing Research.

Whitfield, J. A. & Mehta, D. D. (in press). Examination of clear speech in Parkinson disease using measures of working vowel space. Journal of Speech, Language, and Hearing Research.

Gravelin A. & Whitfield, J. A. (in press). Effects of clear speech on silent interval duration at syntactic and phonemic boundaries in speakers with Parkinson disease. American Journal of Speech-Language Pathology.

Perrine, B., Scherer, R. C., & Whitfield, J. A. (in press). Signal interpretation considerations when estimating subglottal pressure from oral air pressure. Journal of Speech, Language, and Hearing Research.

Whitfield, J. A. (2019). Exploration of metrics for quantifying formant space in speakers with Parkinson Disease: Implications for vowel space assessment. Perspectives of the ASHA Special Interest Groups, 4, 402-410.

Whitfield, J. A. & Gravelin, A. (2019). Characterizing the distribution of silent intervals in the connected speech of individuals with Parkinson disease. Journal of Communication Disorders, 78, 10-32, DOI:10.1016/j.jcomdis.2018.12.001

Whitfield, J. A., Dromey, C., & Palmer, P. (2018). Examining Acoustic and Kinematic Measures of Articulatory Working Space: Effects of Speech Intensity. Journal of Speech, Language, and Hearing Research, 61, 1104-1117, DOI:10.1044/2018_JSLHR-S-17-0388.

Whitfield, J. A., Reif, A., & Goberman, A. M. (2018). Voicing contrast of stop consonant production in the speech of individuals with Parkinson disease ON and OFF dopaminergic medication. Clinical Linguistics and Phonetics, 32(7), 587-594, DOI: 10.1080/02699206.2017.1387816.

Whitfield, J. A., DeLong, C., Blomgren, M., & Goberman, A. M (2018). Fluency adaptation effect in individuals with Parkinson disease: A motor learning perspective.International Journal of Speech-Language Pathology, 20, 699-707. DOI: 10.1080/17549507.2017.1341549.

Whitfield, J. A., & Goberman, A. M. (2017). Speech motor sequence learning: Effect of Parkinson disease and normal aging on dual-task performance. Journal of Speech, Language, and Hearing Research, 60, 1752-1765. DOI:10.1044/2017_JSLHR-S-16-0246.

Whitfield, J. A., & Goberman, A. M. (2017). Speech motor sequence learning: Acquisition and retention in Parkinson disease and normal aging. Journal of Speech, Language, and Hearing Research, 60, 1477-1492. DOI:10.1044/2016_JSLHR-S-16-0104.

Whitfield, J. A., & Goberman, A. M. (2017). Articulatory-acoustic vowel space: Associations between acoustic and perceptual measures of clear speech. International Journal of Speech-Language Pathology, 19(2), 184-194. DOI:10.1080/17549507.2016.1193897.

Whitfield, J. A., & Goberman, A. M. (2014). Articulatory-Acoustic Vowel Space: Application to Clear Speech in Individuals with Parkinson disease. Journal of Communication Disorders, 51, 19-28. DOI: 10.1016/j.jcomdis.2014.06.005.

Goberman, A. M. & Whitfield, J. A. (2013). Acoustics of infant cries: Fundamental frequency as a measure of pain. Perspectives Speech Science and Orofacial Disorders, 23(1), 18-26. DOI: 10.1044/ssod23.1.18

Complete List of Refereed Publications: https://www.ncbi.nlm.nih.gov/myncbi/jason.whitfield.1/bibliography/public/

Invited Presentations

Whitfield, J. A. (accepted for 2025). Tracking the attentional demands of speech [Invited presentation] 2025 Boston Speech Motor Control Symposium, Boston, MA. (Conference link: https://sites.bu.edu/stepplab/upcoming-events/bsmcs/2025-bsmcs/)

Whitfield, J. A. (2024, Apr. 11). Estimating vowel space in talkers with dysarthria [Invited presentation]. Virtual Special Interest Group (SIG) 19, Speech Science, Professional Development Session on Topics in Speech Science: Applying Research to Practice.

Whitfield, J. A. (2023, May. 9). Dual-task costs of clear and loud speech: Implications for talkers with Parkinson disease [Invited conference presentation] 184th Meeting of the Acoustical Society of America, Chicago, IL.

Whitfield J. A. (2021, Dec. 13). Interactions between attentional control and speech production [Invited virtual presentation]. Neuropsycholinguistic Research Group at the University of Geneva, Geneva, Switzerland.

Whitfield J. A. (2019, Sep. 20). Sources of intraspeaker variability in speakers with Parkinson disease related to attentional focus [Invited conference presentation]. 1st Automatic Assessment of Parkinsonian Speech Workshop, Cambridge, MA.

Behroozmand, R., Borrie, S., Lansford, K., Whitfield, J. A., Finan, D. (2018, Nov. 15). Towards Revolutionary Change in Clinical Practice: Emerging Research with Clinical Application. Invited oral session presented at the 2018 American Speech-Language Hearing Association Convention, Boston, MA.

Whitfield, J. A. (2018, March 23). Effects of Parkinson disease on voice, speech, and cognition. One and a half hour invited oral session presented at the 2018 Ohio Speech-Language-Hearing Association Convention, Columbus, OH.

Whitfield, J. A. (2018, Feb 10). Motor learning in individuals with Parkinson disease: Implication for clinical practice. One hour invited oral session presented at the 2018 Illinois Speech-Language-Hearing Association Convention, Chicago, IL.

Whitfield, J. A. (2018, Feb 10). Effects of dual-task performance on speaker with Parkinson disease: Clinical considerations. One hour invited oral session presented at the 2018 Illinois Speech-Language-Hearing Association Convention, Chicago, IL.

Whitfield, J. A. (2018, Jan. 12). Treatment of Speech Impairments in Individuals with Parkinson Disease: Principles of Motor Learning. Three hour Invited oral session presented to the Northwest Ohio Speech-Language-Hearing Association, Toledo, OH.