Does anxiety increase the likelihood of developing motion sickness? In general, does a person's anxiety or "fear of flying" have an effect on his likelihood of experiencing motion sickness during flight?

I am wondering if providing some ground education to first-time flyers would have a positive impact on their experience by reducing anxiety levels and, therefore, the chances of needing to use regurgitation collection devices.

Assume all other factors such as specific G-forces and accelerations experienced, temperatures, meals eaten, etc. are controlled or disregarded.
It's different for everyone, but I'd expect stress/anxiety to be a contributing factor for many, which is an ultimately self-defeating cycle; if you "know" you're going to get sick, you'll be anxious about that, and that'll make you sick.

The trigger for me is inadequate ventilation. I'm fortunate enough to rarely get motion sickness, but when it does happen it's usually because I'm in a hot, still cabin without a good source of fresh air.