I am a Philosopher of Science. I am interested in the philosophical issues that are involved in scientists' assessment of models. I am also interest in model construction, particularly in how the model construction process affords justification for idealizing assumptions. I mostly focus on how scientists model nervous transmission in the present, and how they have done so in the past. This focus has led me to become interested in the role of material culture in scientific research and its relation to the historicity of scientific practice.