All Stories

  1. A Response to Mailend et al.: Refined Operational Definitions for the Apraxia of Speech Rating Scale

    Article • American Journal of Speech-Language Pathology, April 2026, American Speech-Language-Hearing Association (ASHA)

    Heather Clark, Ph.D. Joseph R Duffy, Rene Utianski

  2. Testing Feasibility of a Self-Administered Hearing Test for Patients With Progressive Apraxia of Speech and Aphasia

    Article • American Journal of Audiology, February 2025, American Speech-Language-Hearing Association (ASHA)

    Heather Clark, Rene Utianski, Ph.D. Joseph R Duffy

  3. Progression of Motor Speech Function in Speakers With Primary Progressive Apraxia of Speech

    Article • Journal of Speech Language and Hearing Research, November 2024, American Speech-Language-Hearing Association (ASHA)

    Ph.D. Joseph R Duffy, Rene Utianski, Heather Clark

  4. Acute onset Wernicke's aphasia can be misdiagnosed and mismanaged

    Article • Perspectives of the ASHA Special Interest Groups, November 2024, American Speech-Language-Hearing Association (ASHA)

    Heather Clark, Dr. Adithya Chandregowda

  5. Automatic Speech Recognition in Primary Progressive Apraxia of Speech

    Article • Journal of Speech Language and Hearing Research, August 2024, American Speech-Language-Hearing Association (ASHA)

    Heather Clark, Ph.D. Joseph R Duffy, Rene Utianski, Katerina Tetzloff, Daniela Wiepert

  6. Identifying and Addressing Functional Communication Challenges in Patients With Behavioral Variant Frontotemporal Dementia

    Article • American Journal of Speech-Language Pathology, June 2024, American Speech-Language-Hearing Association (ASHA)

    Heather Clark, Rene Utianski, Ph.D. Joseph R Duffy

  7. Characterizing Speech Errors Across Primary Progressive Apraxia of Speech Subtypes

    Article • Journal of Speech Language and Hearing Research, February 2024, American Speech-Language-Hearing Association (ASHA)

    Heather Clark, Rene Utianski, Ph.D. Joseph R Duffy

  8. Erratum to “Comorbidity and Severity in Childhood Apraxia of Speech: A Retrospective Chart Review”

    Article • Journal of Speech Language and Hearing Research, October 2023, American Speech-Language-Hearing Association (ASHA)

    Heather Clark, Karen Chenausky, Jordan R Green

  9. The Apraxia of Speech Rating Scale: Reliability, Validity, and Utility

    Article • American Journal of Speech-Language Pathology, March 2023, American Speech-Language-Hearing Association (ASHA)

    Heather Clark, Ph.D. Joseph R Duffy, Rene Utianski

  10. Comorbidity and Severity in Childhood Apraxia of Speech: A Retrospective Chart Review

    Article • Journal of Speech Language and Hearing Research, February 2023, American Speech-Language-Hearing Association (ASHA)

    Heather Clark, Karen Chenausky, Jordan R Green

  11. Rate Modulation Abilities in Acquired Motor Speech Disorders

    Article • Journal of Speech Language and Hearing Research, February 2023, American Speech-Language-Hearing Association (ASHA)

    Heather Clark, Ph.D. Joseph R Duffy, Dr. Julie A.G. Stierwalt, Rene Utianski

  12. Assessing Patients and Care Partner Ratings of Communication-Related Participation Restrictions: Insights From Degenerative Disease

    Article • American Journal of Speech-Language Pathology, February 2023, American Speech-Language-Hearing Association (ASHA)

    Heather Clark, Ph.D. Joseph R Duffy, Dr. Julie A.G. Stierwalt, Rene Utianski

  13. Characterizing anarthria to facilitate neurological diagnosis

    Article • Perspectives of the ASHA Special Interest Groups, December 2021, American Speech-Language-Hearing Association (ASHA)

    Dr. Adithya Chandregowda, Heather Clark

  14. Assessing Change in Communication Limitations in Primary Progressive Apraxia of Speech and Aphasia: A 1-Year Follow-Up Study

    Article • American Journal of Speech-Language Pathology, November 2021, American Speech-Language-Hearing Association (ASHA)

    Heather Clark, Ph.D. Joseph R Duffy, Rene Utianski

  15. Distinguishing Spastic and Dystonic Features in a Patient With a History of Brainstem Encephalitis: A Clinical Case Study

    Article • Perspectives of the ASHA Special Interest Groups, June 2021, American Speech-Language-Hearing Association (ASHA)

    Heather Clark

  16. Motor Speech Disorders and Communication Limitations in Progressive Supranuclear Palsy

    Article • American Journal of Speech-Language Pathology, June 2021, American Speech-Language-Hearing Association (ASHA)

    Heather Clark, Rene Utianski

  17. A Longitudinal Evaluation of Speech Rate in Primary Progressive Apraxia of Speech

    Article • Journal of Speech Language and Hearing Research, February 2021, American Speech-Language-Hearing Association (ASHA)

    Heather Clark, Ph.D. Joseph R Duffy, Rene Utianski

  18. Communication Limitations in Patients With Progressive Apraxia of Speech and Aphasia

    Article • American Journal of Speech-Language Pathology, November 2020, American Speech-Language-Hearing Association (ASHA)

    Heather Clark, Rene Utianski

  19. Western Aphasia Battery–Revised Profiles in Primary Progressive Aphasia and Primary Progressive Apraxia of Speech

    Article • American Journal of Speech-Language Pathology, February 2020, American Speech-Language-Hearing Association (ASHA)

    Ph.D. Joseph R Duffy, Heather Clark, Rene Utianski

  20. Clinical Progression in Four Cases of Primary Progressive Apraxia of Speech

    Article • American Journal of Speech-Language Pathology, November 2018, American Speech-Language-Hearing Association (ASHA)

    Heather Clark, Ph.D. Joseph R Duffy, Rene Utianski

  21. Electroencephalography in primary progressive aphasia and apraxia of speech

    Article • Aphasiology, November 2018, Taylor & Francis

    Ph.D. Joseph R Duffy, Heather Clark, Rene Utianski

  22. Neurogenic Orofacial Weakness and Speech in Adults With Dysarthria

    Article • American Journal of Speech-Language Pathology, August 2017, American Speech-Language-Hearing Association (ASHA)

    Dr. Nancy Pearl Solomon, Heather Clark

  23. Effects of Age, Sex, and Body Position on Orofacial Muscle Tone in Healthy Adults

    Article • Journal of Speech Language and Hearing Research, August 2015, American Speech-Language-Hearing Association (ASHA)

    Dr. Nancy Pearl Solomon, Dr. Angela Dietsch, Heather Clark

  24. Primary Progressive Apraxia of Speech: Clinical Features and Acoustic and Neurologic Correlates

    Article • American Journal of Speech-Language Pathology, May 2015, American Speech-Language-Hearing Association (ASHA)

    Ph.D. Joseph R Duffy, Heather Clark

  25. Volumes of Discrete Sips From Straws of Varying Internal Diameters

    Article • American Journal of Speech-Language Pathology, February 2014, American Speech-Language-Hearing Association (ASHA)

    Heather Clark

  26. Specificity of Training in the Lingual Musculature

    Article • Journal of Speech Language and Hearing Research, April 2012, American Speech-Language-Hearing Association (ASHA)

    Heather Clark

  27. Pediatric dysphaia preterm infants

    Article • American Journal of Speech-Language Pathology, November 2010, American Speech-Language-Hearing Association (ASHA)

    Tracy Schooling, Program Coordinator Feeding & Swallowing Joan C Arsvedson, Heather Clark, Tobi Frymark

  28. Neuromuscular Treatments for Speech and Swallowing

    Article • American Journal of Speech-Language Pathology, November 2003, American Speech-Language-Hearing Association (ASHA)

    Heather Clark