Dynamical analysis in real time: detecting perturbations to team communication

作者：Gorman Jamie C^*; Hessler Eric E; Amazeen Polemnia G; Cooke Nancy J; Shope Steven M

来源：Ergonomics, 2012, 55(8): 825-839.

DOI：10.1080/00140139.2012.679317

• dynamical systems
• Lyapunov exponent
• perturbation
• real-time analysis
• team communication

Dynamical systems methods characterise patterns of change over time. Typically, such methods are applied only after data collection is complete. However, brief disturbances - perturbations - can occur as a process unfolds and can result in undesirable outcomes if not acted on. The application of dynamics in real time would be useful for detecting these sudden changes. Real-time analysis was accomplished by updating dynamical estimates simultaneously across different window sizes. We calculated the largest Lyapunov exponent, a measure of dynamical stability, to detect a perturbation to team communication in a simulated uninhabited air vehicle (UAV) reconnaissance mission. The perturbation consisted of information demands from a confederate that occurred unexpectedly during performance of a UAV mission. We demonstrate the use of real-time methods in detecting that perturbation as it occurred. In application, this technique would have enabled real-time intervention. Extensions of the real-time dynamical method to other domains of psychological inquiry are discussed.

• 出版日期2012