The purpose of this study is to investigate the process of improvisational contemporary dance. To achieve this goal, we combine two types of methodology: analysis of data from interviews with dancers and analysis of their dance performances. Our findings reveal that while dancing, in order to create their movements, improvisational dancers interact with various stimuli that come from inside and outside of themselves (for example, images and feelings that they entertain during their dancing, and the music, space and audience of their dance performances). Through such interactions, dancers organize movements in their performances extemporarily, using various expressive techniques (for example, changing speed or image intentionally and seeing themselves from the viewpoint of a third person).