Studies of dialogue and dialogism reveal how language is deeply intersubjective. When we speak, we always address our interlocutors, taking their perspective and orienting to what we think they think (or, more often, don't think).[12] Within this tradition of research, it has been argued that the structure of individual signs or symbols, the basis of language, is intersubjective[13] and that the psychological process of self-reflection entails intersubjectivity.[14] Recent research on mirror neurons provides evidence for the deeply intersubjective basis of human psychology,[15] and arguably much of the literature on empathy and theory of mind relates directly to intersubjectivity.