Close your eyes just before you walk through the drape at the entrance of the Center for Contemporary Art, 1519 19th Street. Then listen: If there aren’t too many other viewers in the room buzzing excitedly, you can hear it—something indefinable. Open your eyes and there are nine gently moving, identical, shiny, silver antiquish horns, each attached to a small motor and mounted at varied levels on polished stands. They’re dispersed throughout the richly crimson room—at one end of which a large pillow hangs like a regal seat, occupied by a large stone. Step close enough to the horns and you’ll hear something not unlike that sound you get when you hold certain seashells up to your ear. Welcome to Authenticating Consciousness: Installations by Andrew Connelly, which tickles your senses until February 18. For more information call (916) 498-9811.