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Humanoid robot helps train children with autism
Date:3/20/2013

anager at TRIAD, and Julie Crittendon, assistant professor of pediatrics at the Vanderbilt University Medical Center.

The team decided that a robotic system had the greatest potential working with young children. "Research has shown that early intervention, individualized to the learner's needs, is currently the most effective approach for helping children with autism develop the foundational social communication skills they need to become productive adults," Crittendon said.

So the researchers built an "intelligent environment" around NAO, a commercial humanoid robot made in France, whose control architecture was augmented for the purpose. The small robot stands on a table at the front of the room. Flat panel displays are attached to the side walls. The chair where the child sits faces the front of the room and is high enough to put the robot at eye level. The room is equipped with a number of inexpensive web cameras that are aimed at the chair. Their purpose is to track the child's head movements, so the system can determine where he or she is looking. To aid in this effort, children in the study wore a baseball cap decorated with a strip of LED lights that allowed the computer to infer where they are looking.

NAO has been programmed with a series of verbal prompts, such as "look over here" and "let's do some more," and gestures such as looking and pointing at one of the displays, that imitate the prompts and gestures that human therapists use in joint attention training. The protocol begins with a verbal prompt that asks the child to look at an image or video displayed on one of the screens. If the child doesn't respond, then the therapist provides increasing support by combining a verbal prompt with physical gestures such as turning her head or pointing. When the child looks at the target then the therapist responds with praise, such as telling the child, "good job."

The set up allowed the researchers to test the relative effe
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Contact: David Salisbury
david.salisbury@vanderbilt.edu
615-343-6803
Vanderbilt University
Source:Eurekalert  

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