Proceedings of the International scientific and practical conference ―Synergy of Modern Science and Education‖ (February 2-4, 2026) / Publisher website: www.naukainfo.com. – New York, USA, 2026. - 324 p.

69 INFORMATION TECHNOLOGIES AND SYSTEMS UDC 37:004.5 Chervynskyi Maksym PhD Student V. M. Glushkov Institute of Cybernetics of the NAS of Ukraine, Kyiv, Ukraine MOMENT-AWARE ADAPTIVE E-LEARNING: PROGRESSIVE DISCLOSURE OF THE INTERFACE BASED ON IN-THE-MOMENT OVERLOAD CUES Abstract. Traditional educational models have long relied on a unified pace and the same structure for everyone. However, digital learning increasingly takes place in an environment where learners differ not only in their level of preparation but also in their current psycho-emotional state: fatigue, tension, reduced attention. This paper proposes the concept of moment-aware adaptive e-learning that adjusts the presentation of material and the interface in real time not only to the learner‘s ―profile‖ but also to cues of in-the-moment overload. As an approach accessible for large-scale use, the paper considers a combination of behavioral interaction metrics (errors, pauses, returns, chaotic clicks) and ocular indicators (fixation duration, pupil dynamics, blinking) that can potentially be estimated even via a webcam. Adaptation is implemented through progressive disclosure and a mode-based design system of the interface (Focus/Normal/Power) that reduces ―extraneous‖ cognitive load and increases completion as well as learning quality. The theoretical foundation is