-The focus of most information fusion research, so far, has been on the technology, i.e. information processing in machines. However, the importance of also understanding human information processing, and the interaction between humans and machines, is gaining increasing recognition. This position paper argues that a distributed cognition perspective, which considers cognitive processes not as taking place solely inside people's heads, but as distributed over human thought processes and the material, social and organisational environment they are embedded in, may help to provide a deeper understanding of information fusion processes.