This paper focuses on the shifting terrain of mobile researchers beginning with an overview of research and research policy on "brain mobility", and then discussing what we call their optical illusions/delusions. Subsequently, our main purpose is to elaborate on a line of inquiry that offers richer notions of researcher mobility, connectivity and…

Asserts that, with the new structure of the global economy, the pattern of international mobility of highly skilled personnel (HSP) is changing. Analyzes the development of a new phenomenon, "brain circulation," where HSP's stay a shorter period of time in host countries due to international job opportunities. (MJP)