Reflections on shared cognition

The purpose of this paper is to highlight several fundamental questions tha t remain regarding shared cognition: (1) What must be 'shared'? (2) What do es 'shared' mean? (3) How should 'shared' be measured? and (4) What outcome s do we expect shared cognition to affect? A general and integrative descri ption of these questions is provided. In addition, the value of shared cogn ition is discussed along with recommendations for future research. Copyrigh t (C) 2001 John Wiley & Sons, Ltd.