The development of the idea of coordination languages, as deened by Carriero and Gelernter 8], has enabled work in concurrency to abstract away from the internals of processes or agents and hence to focus on their external interactions. A variety of practical parallel and/or distributed systems have resulted from the application of the coordination language concept | the most widely-known of th...

The sequence of images generated by motion between observer and object spec-iies a spatiotemporal signature for that object. Evidence is presented that such spatiotemporal signatures are used in object recognition. Subjects learned novel, three-dimensional, rotating objects from image sequences in a continuous recognition task. During learning, the temporal order of images of a given object was...