When Phobot sees a larger robot, it retreats, and spins around, making high pitched noises, seemingly in panic.[1] When it is gradually exposed to smaller robots, and is coached by holding its hands and talking to it in a soothing manner, it learns to overcome its fear.[2] This approach mimics the process of systematic desensitization, or graded exposure treatment, common in the treatment of phobias.
Design
Phobot was built for a competition at the international conference on human-robot interaction 2008 from a Lego Mindstorms robot kit, and its behaviour implemented in the Mindstorms software.[1] It uses RFID, sound and touch sensors to interact with humans.[3] It was designed as a low cost proof of concept for an affective robot, coaching children to deal with phobias and anxieties.[2]