Definition of some terms from the arsenal of concepts related to illusions in aspects of costume design

The article highlights the problems associated with the study and explanation of the phenomenon of "illusion". The analysis and comparison of definitions given to the concept of "illusion" and related derivatives from this word. Given several definitions of the word "illusion" contained in various reference books and literature. Identified the need to develop a comprehensive methodology for large-scale series of scientific experiments with the use of sociological methods of research, variance analysis, method, participant observations, and computer technology.