Currently viewing Vol. 8 • Issue 5 • 2021

Striking the Right Balance

Book Review

Michael Vekasi, AuD, R.Aud, Aud(C), FAAA and Erica Zaia, MSc, RAUD are coordinating the “Striking the Right Balance,” feature which will cover the latest information on ‘all things vestibular.’

If you would like to be more involved in all things vestibular, please sign-up for the Vestibular Special Interest Group. Sign-up by simply emailing CAAvestibular@gmail.com to let us know you want to be a part. Also, check out our Facebook page for a free list of online vestibular resources at the CAA National Vestibular Special Interest Group page.

Electronystagmography and Videonystagmography:

ENG/VNG, 2nd Edition by Devin L. McCaslin
Plural Publishing, Inc., 2020, ISBN 978-1-63550-081-3
Reviewed by Michael Vekasi, AuD, R.Aud, Aud(C), FAAA


The second edition of this book by Devin L. McCaslin is an excellent resource to add to one’s personal (or professional) library, whether a student, novice audiologist, or experienced audiologist. This book is written concisely yet still can dive deeper into important topics (such as some of the more technical aspects of performing a VNG/ENG).

As a newer instructor of doctoral-level students for vestibular assessment and management, I enjoy using this book for the material in my lectures and as a resource for the students. In addition, compared to some of the other great vestibular books, this book has the most significant number of images, diagrams, and tables for succinctly summarizing information – something that I know students (and instructors) find valuable.

The first edition of this book was approximately 200 pages, and the second edition is nearly 300 pages, so a good amount of new or updated information has been added to the second edition. In addition to incorporating new references throughout, this edition has more illustrations, a chapter dedicated to common vestibular disorders, and a companion website from the publisher with 10 cases (including 17 videos to help support learning).

If someone in the field of Audiology was looking to add videonystagmography (VNG) or electronystagmography (ENG) to their clinical practice, this is one of the best books available to walk you through most of what you need to know for these vestibular assessments.

The only thing missing from my copy of this book is a signed message from the author (I had a nerdy fandom moment at an audiology conference where I met Dr. McCaslin and had my copy of the first edition with me, so naturally I could not resist asking him to sign it).

Book chapters include:

  • Neural Control of Eye Movements
  • Anatomy and Physiology of the Vestibular System
  • Pretest Procedures for VNG
  • Eye Movement Examination
  • Positional and Positioning Testing
  • The Caloric Test
  • Common Vestibular Disorders: Clinical Presentation
  • Appendices that cover:
    • Dizziness Questionnaire
    • Understanding Dizziness
    • Pediatric Literature for Vestibular Testing
    • Example Alerting Tasks for Vestibular Testing
    • Reliability and Localizing Value of VNG Findings

Supplementary videos included on the publisher’s companion website:

  • Case 1 – Downbeat Gaze Nystagmus
  • Case 2 – Bidirectional Gaze-Evoked Nystagmus
  • Case 3 – Hypermetric Saccades
  • Case 4 – Infantile Nystagmus
  • Case 5 – Ocular Flutter
  • Case 6 – Slow Saccades
  • Case 7 – Spontaneous Vestibular Nystagmus
  • Case 8 – Posterior Canal Benign Paroxysmal Positional Vertigo
  • Case 9 – Square Wave Jerks
  • Case 10 – Geotropic Horizontal Canal Benign Paroxysmal Positional Vertigo
About the author

Michael Vekasi, AuD, R.Aud, Aud(C), FAAA

Michael is a Senior Trainer for Allied Health with a province-wide clinical information system implementation at Alberta Health Services. He was previously a clinical audiologist where his caseload focused on vestibular diagnostic assessments as well as a multi-disciplinary vestibular clinic. He is an Adjunct Assistant Professor with A.T. Still University, teaching vestibular assessment and management to post-professional Doctor of Audiology students, and a sessional instructor at MacEwan University. He obtained his Au.D. from A.T. Still University, his M.Cl.Sc. (Audiology) from Western University and his certificate of Advanced Studies in Vestibular Sciences and Disorders from Salus University. He is currently serving as a board member of the Canadian Academy of Audiology. He is co-editor of the Striking the Right Balance column in Canadian Audiologist, an executive member of the National Vestibular Special Interest Group, and volunteers his time with ACSLPA (the Alberta College of Speech-Language Pathologists and Audiologist), CAA, SAC, AAofA (the Alberta Association of Audiologists), and TAP Canada (the Audiology Project – Canadian cohort). He was awarded the 2020 Professional Leadership Award from A.T. Still University.