This paper engages general debates about the production of knowledge and, within that, more specific debates about the place of the researcher in the research process. There are two main objectives: one is a theoretical interest that involves examining the issue of subjectivity and how intersubjective negotiations take shape in research encounters. A second objective is to speculate from my own data what these understandings of the researcher's subjectivity tell us about the production of knowledge. It is also to understand the part that emotions and unconscious interference play in research. [For the complete proceedings, "Shaping the Future of Mathematics Education. Proceedings of the Annual Conference of the Mathematics Education Research Group of Australasia (33rd, Freemantle, Western Australia, Australia, July 3-7, 2010)," see ED520764.]