デザイン活動における脳内ネットワークの働きに関する考察

Abstract

This paper explores the role of three major brain networks—Default Mode Network (DMN), Frontoparietal Network (FPN), and Salience Network (SN)—in facilitating creative and problem-solving processes in design activities. Each network plays a distinct role in design: the DMN supports introspection, self-referential thinking, and spontaneous idea generation, which are critical for the initial stages of creativity and envisioning solutions. The FPN, involved in executive functions and decisionmaking, assists in focusing on goals, evaluating ideas, and organizing steps to transform concepts into concrete designs. The SN, which detects and prioritizes salient stimuli from internal and external sources, helps the brain efficiently switch between introspective and goal-oriented thinking, enabling designers to direct attention to important insights and refine their ideas accordingly. This study highlights how fluctuations in brain network activity under stress impact ideation and creative output. By maintaining a balance between self-reflective and task-focused thinking, designers can enhance their ability to innovate and adapt to user needs.