Biosignals are information sources obtained from the different biological and physiological structures of the human organism. This paper presents the advance of the proposal of a method for the biosignals analysis, which allows serving as support for the design of adaptive user-interfaces. This method includes four stages: biosignals collection, extraction and preparation, analysis, and getting patterns. This analysis and obtaining of user patterns through the biosignals could be especially useful because they represent valuable information related to events or actions of user behavior, which could be incorporated in the stage of requirements specification for the design of adaptive user-interfaces, and even serve for the refinement of these.