JAAA CEU Program

The questions refer to Jha et al, “Video Head Impulse Test in Persons with Blindness: Feasibility and Outcomes,” pages 116–124.

Learner Outcomes

Readers of this article should be able to:

• Explain the need for developing vestibular-assessment techniques for persons with blindness.

• Summarize the outcomes of the Video Head Impulse Test (vHIT) in persons with blindness.

CEU Questions

1. Vestibular abnormality in persons with blindness is likely to _________________ their vulnerability for falls.

   • Increase

   • Decrease

   • Not affect

2. The sacculo-collic pathway in persons with blindness can be assessed using the

   • Ocular Vestibular Evoked Myogenic Potential (oVEMP)

   • Cervical Vestibular Evoked Myogenic Potential (cVEMP)

   • Video Head Impulse Test (vHIT)

3. Which of the following can assess the functioning of all of the six semi-circular canals for naturally occurring high-frequency head movements?

   • Caloric stimulation

   • Rotary chair examination

   • Video Head Impulse Test (vHIT)

4. In this study, how many times did the persons with blindness undergo the vHIT?

   • One time

   • Two times

   • Three times

5. For the control group, Condition 1 was used to simulate blindness. How did the authors simulate blindness?

   • By testing in an anechoic chamber where no sound could be heard.

   • By administering the vHIT in a pitch-dark room and by not providing any target or any instructions.

   • By asking the participants to not sleep for three days.

6. What degrees of calibration did the authors use?

   • 15 degrees

   • 10 degrees

   • Default calibration

7. The range of peak velocity maintained during head thrusts to record the vHIT was:

   • 100 to 250 degrees per second

   • Less than 150 degrees per second

   • At least 250 degrees per second

8. The Vestibular Ocular Refl ex (VOR) gain is the ratio of:

   • Head velocity/eye velocity

   • Eye velocity/head velocity

   • Body acceleration/eye acceleration

9. Which of the canals had the least VOR gain among persons with blindness?

   • Lateral canals

   • Anterior canals

   • Posterior canals

10. In this study, which condition yielded the least amount of VOR gain among persons with normal vision?

    • Condition 1 (simulated blindness)

    • Condition 2

    • Condition 3

Publication History

Article published online:
10 October 2022