Communication Sciences and Disorders
Faculty and Staff
Alexander M. Goberman, Ph.D., CCC-SLP
Parkinson Disease Research Page
VOLUNTEERS REQUESTED FOR SPEECH RESEARCH STUDIES
Dr. Alexander Goberman is an Associate Professor as BGSU. He has been doing research on speech and voice function in individuals with Parkinson Disease (PD) at BGSU since 2000. The research is ever-evolving, but below is a summary of what has been done so far. Send E-Mail
Sabiha Parveen is a Doctoral student in Communication Sciences and Disorders at BGSU. Her thesis is a study examining subtle aspects of speech sound production in individuals with PD. Send E-Mail
Nathan Miller is a Doctoral student in Psychology at BGSU. He is working on a research project examining timing in PD. Send E-Mail
Lindsey Lindenbaum is a Master's student working on PD-related research.
Research Areas and Publications
Background information on PD . Two papers have reported on background information for understanding speech and voice in individuals with PD. The first of these papers focuses on the medical aspects of PD and acoustic analysis of speech, and the second paper focuses on medicine-related issues affecting research of PD.
- Goberman, A., & Coelho, C. (2002). Acoustic analysis of Parkinsonian speech I: Speech characteristics and L-Dopa therapy. NeuroRehabilitation, 17, 237-246.
- Goberman, A., & Coelho, C. (2002). Acoustic analysis of Parkinsonian speech II: L-Dopa related fluctuations and methodological issues. NeuroRehabilitation, 17, 247-254.
Effect of medication on Parkinsonian speech and voice . The overall goal of this research is to use the sounds of speech (acoustic analysis) to determine how the brain controls speech and voice. This research also looks at speech and voice during the good times (when medication is working), as well as the not-so-good times (when medication is not working).
- Fischer, E., & Goberman, A. (2010). Voice onset time in Parkinson disease. Journal of Communication Disorders, 43, 21-34.
- Goberman, A., Blomgren, M., & Metzger, E. (2010). Characteristics of speech disfluency in Parkinson Disease. Journal of Neurolinguistics, 23, 470-478.
- Goberman, A., & Blomgren, M. (2008). Fundamental Frequency Change during Offset and Onset of Voicing in Individuals with Parkinson Disease. Journal of Voice, 22, 178-191.
- Goberman, A., & McMillan, J. (2005). Relative speech timing in Parkinson disease. Contemporary Issues in Communication Science and Disorders, 32, 22-29.
- Goberman, A., Coelho, C., & Robb, M. (2005). Prosodic characteristics of Parkinsonian speech: The effect of levodopa-based medication. Journal of Medical Speech-Language Pathology, 13, 51-68.
- Goberman, A., & Blomgren, M. (2003). Parkinsonian speech disfluencies: Effects of L-Dopa-related fluctuations. Journal of Fluency Disorders, 28, 55-70.
- Goberman, A., Coelho, C., & Robb, M. (2002).Phonatory characteristics of Parkinsonian speech before and after morning medication: the ON and OFF states. Journal of Communication Disorders, 35, 217-239.
- Other studies are currently underway.
Relationship between speech and non-speech function . It seems that PD affects speech and non-speech movement differently. Although both can be affected by PD, medication seems to have a greater effect on non-speech functions. The research examines possible reasons for this.
- Goberman, A. (2005). Correlation between acoustic speech characteristics and non-speech motor tasks in Parkinson's disease.Medical Science Monitor, 11, CR109-116.
- Other studies currently underway.
Studies of variability and factors that might affect variability . I am interested in examining the causes of speech and voice variability in individuals with PD. The below research examines variability, and this was completed in collaboration with the University of Toledo Medical Center.
- Goberman A.M., Parveen, S., & Recker, B. (2010). Performance effect: Does the presence of a microphone influence Parkinsonian speech? Journal of Medical Speech-Language Pathology, 18, 40-45.
- Goberman, A., & Elmer, L. (2005). Acoustic Analysis of Clear versus Conversational Speech in Individuals with Parkinson Disease. Journal of Communication Disorders, 38, 215-230.
- Other studies currently underway.
Future studies . If you have ideas for future studies, or you would like to help with future research (as a participant or as a researcher), please feel free to contact me.
University of Toledo Medical Center Center for Neurological Disorders - Parkinson's Disease and Movement Disorders Program - Neurology clinic appointments and information
Northwest Ohio Parkinson Foundation - Northwest Ohio support group information
WE MOVE - Medical information relating to Parkinson Disease
Feel free to contact me if you would like to receive a .pdf of any of this research.
For full list of Dr. Goberman's publications and presentations, please see his faculty page.