title: Expert reflection in the process of diagnosis of diseases at the extraction of knowledge
abstract: Reflection of the expert takes among in the process of forming answers to the questions of the cognitive scientist. In medical diagnostics this process including the analysis of disease dynamics. This procedure can be presented in the form of a formula that includes the fuzzy of pathological manifestations, their relevant and the expert certainty factors. This factor characterizes linguistic (verbal) knowledge and visual holistic images in different time periods of the disease.