Sitting at a lab desk, more like a console than a table, Jane Smith intently grasps the space-age controls. A hint of perspiration crowns her forehead as the faint whine of a drill is replaced by the sound of slick-moving mechanical parts. She focuses on the deft hand movements needed to manipulate a threadlike glass pipette. Slowly it enters the shaved skull of her "anesthetized recording preparation" (in this case, a rat). Carefully she explores its brain cavity. She's hunting for certain cells, and she can hear them coming.