Appendix 1

Visual vestibular mismatch questionnaire

Are you made unwell by

• going on an escalator
• watching traffic at an intersection
• being in a supermarket
• walking in a shopping mall
• seeing checkerboard floor patterns

“VVM POSITIVE” = 3, 4, OR 5 POSITIVE ANSWERS
“VVM NEGATIVE” = 0, 1 OR 2 POSITIVE ANSWERS

It must be remembered that there are some limitations to the questionnaire:

• A patient may not have the English skills to answer the questions (or to give an accurate history)
• A questionnaire might be leading or suggestive
• A patient might not have been exposed to the offending stimuli
• A patient might be “overly cooperative” and supply positive answers without thinking