Hello and welcome to Neuro Talk Aspen, I am sorry I can not answer your question but can drop a link here to a forum that may help
http://neurotalk.psychcentral.com/forum71.html

feel free to look about and post and answer anywhere, I do think posing that question there will get better results,

and if anyone else here knows of another Forum for aspen to try please post the link too, you will find a lot of helpful and considerate people here

again welcome to NT, hope your day goes well.