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Groundbreaking approach to understanding social interaction

Date:
August 11, 2014
Source:
Florida Atlantic University
Summary:
Scientists have created the Human Dynamic Clamp to address the difficult problem of studying social interactions in the laboratory. Using state-of-the-art human-machine interface technology, the Human Dynamic Clamp works by having humans interact with a computational model that behaves very much like humans themselves. In simple experiments, the model – on receiving input from human movement – drives an image of a moving hand which is displayed on a video screen.

Scientists at Florida Atlantic University’s Center for Complex Systems and Brain Sciences have created the Human Dynamic Clamp to address the difficult problem of studying social interactions in the laboratory. Their findings were released today in an article titled “The Human Dynamic Clamp as a Paradigm for Social Interaction” in the Proceedings of the National Academy of Sciences.

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“While it is fairly easy to study one person’s behavioral and brain functions in the laboratory (including an individual’s response to social stimuli), until now it has been very difficult to investigate real time interactions between two people in a way that is conducive to identifying the underlying mechanisms,” said Guillaume Dumas, Ph.D., who did his postdoctoral work at FAU and is now a research scientist at the Pasteur Institute in Paris. “Ordinary social interactions between human beings are seldom static and involve a continuous process of back and forth exchange, making it difficult for scientists to measure or control the experiment.”

Using state-of-the-art human-machine interface technology, the Human Dynamic Clamp works by having humans interact with a computational model that behaves very much like humans themselves. In simple experiments, the model – on receiving input from human movement – drives an image of a moving hand which is displayed on a video screen. To complete the reciprocal coupling, the subject sees and coordinates with the moving image as if it were a real person observed through a video circuit. This social “surrogate” can be precisely tuned and controlled – both by the experimenter and by the input from the human subject.

Along with Dumas, the study’s other authors J.A. Scott Kelso, Ph.D., FAU’s Eminent Scholar in Science; Emmanuelle Tognoli, Ph.D., research associate professor; and Gonzalo C. de Guzman, Ph.D., associate scientist, showed that the Human Dynamic Clamp can help subjects improve their joint actions, enhance cooperation and even learn new skills.

“The Human Dynamic Clamp is important because it offers a path toward an intelligent, socially-competent technological agent that will work and play with humans as if it were one of them,” said Kelso.

“The sound design of the Human Dynamic Clamp may even surpass the original scope of the Turing test of humanness – whether a human judge can tell if an agent is a human being or a machine,” said Dumas.

In the future, the researchers aim to endow the Human Dynamic Clamp with mathematical laws for brain activity as well as behavior.

“A Human Dynamic Clamp with a brain could be subjected to neurological diseases or lesions,” said Tognoli. “The benefit would be to understand and remediate brain disorders that impact social interaction, one of the cores of human existence.”


Story Source:

The above story is based on materials provided by Florida Atlantic University. Note: Materials may be edited for content and length.


Journal Reference:

  1. G. Dumas, G. C. de Guzman, E. Tognoli, J. A. S. Kelso. The human dynamic clamp as a paradigm for social interaction. Proceedings of the National Academy of Sciences, 2014; DOI: 10.1073/pnas.1407486111

Cite This Page:

Florida Atlantic University. "Groundbreaking approach to understanding social interaction." ScienceDaily. ScienceDaily, 11 August 2014. <www.sciencedaily.com/releases/2014/08/140811170000.htm>.
Florida Atlantic University. (2014, August 11). Groundbreaking approach to understanding social interaction. ScienceDaily. Retrieved January 26, 2015 from www.sciencedaily.com/releases/2014/08/140811170000.htm
Florida Atlantic University. "Groundbreaking approach to understanding social interaction." ScienceDaily. www.sciencedaily.com/releases/2014/08/140811170000.htm (accessed January 26, 2015).

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