Expertise depends on hours and hours of practice within a field before a state of proficiency is achieved. Normally, expert skills involve bodily knowledge associated to the practices of a field. Interactional expertise, i.e. the ability to talk competently about the field, however, is not causally dependent on bodily proficiency. Instead, interactional experts are verbally skilled to an extent that makes them impossible to distinguish from so-called contributory experts, the experienced practitioners. The concept of interactional expertise defines linguistic skills as (...) contingent on bodily knowledge. However, recent neuropsychological findings make it plausible that “first-person”-related neural activations would be relevant with respect to the subjects' verbal output, at least when subjects address concepts that refer to tangible objects. Using imitation games, we explore and expand on the apparently arbitrary relation between bodily experiences and linguistic skills in midwifery. In alignment with several findings within grounded cognition studies, the results presented suggest that somehow personal experiences make a linguistic difference, noticeable to contributory experts. (shrink)

Interactional expertise is here to stay. Undoubtedly, in some sense of the word, one can attain a linguistic expert level within a field without full scale practical immersion. In the context of the idea of embodied cognition, the claim is provocative. How can an interactional expert acquire full linguistic competence without the simultaneous bodily engagement and real life interaction needed to get the language right? How can one understand the concept of hammering if one has never seen a hammer or (...) felt the weight of the iron head on a fragile thumb? Here I will explore a strange and second-hand way in which bodily engagement could have an impact on our linguistic abilities; this is via the so called mirror neuron system. Since the mirror neuron system blurs the distinction between first and third person activity it can help us understand some of the enigmatic aspects of interactional expertise and pose further questions for research.Keywords: Mirror neurons; Interactional expertise; Contributory expertise; Embodied knowledge; Evolution. (shrink)