Thanks Carolyn,

I guess they still need data about sense of smell, but smoking also reduces the ability to smell. After having pd for many years, I still can smell things like cleaning liquids, air fresheners. I'm wondering what the scratch and sniff includes.

I accidentally started a small fire with a candle that melted some plastic and set the smoke alarm off in one of the bedrooms - I didn't smell it. Thank the Lord, the smoke alarm had fresh batteries in it. But I can smell strong, tangy, unfamiliar odors and fragrances that don't often go by the everyday nose.

I'll look for some info - now I'm curious. I think, again, that smell is going to be hard to define in PD terms, but that could change at anytime, right? It will be individualistic but interesting to read about.

paula