Sona Systems was reset in December 2015 and all Participant accounts have been deleted. Please request a new account, per the instructions below.

You need to have an account to sign up for research studies. Please click on "Request an Account" below. You MUST use your email address as your User ID.

If you do not remember the email address you used to register here, please email, from your DU email account, with your DU ID# and that you need help retrieving your missing user information.

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