Next-Gen Interaction
Subrata Tikadar, Kaushik Paul, Abhishek Mukhopadhyay · 2025
Human-Computer Interaction (HCI) has advanced greatly, yet the demand for more intuitive, adaptive, and emotionally aware systems continues to rise. As digital technologies become more embedded in daily life, smarter HCI—capable of sensing, interpreting, and responding to users' cognitive and emotional states—is essential. This chapter introduces key HCI principles and traces the shift toward intelligent interfaces driven by AI, machine learning, affective computing, brain-computer interfaces (BCI), and physiological computing. It highlights multimodal inputs such as EEG, EMG, heart rate, GSR, facial expressions, and behavioral cues, emphasizing the role of personalization in improving engagement, accessibility, and performance. Through case studies and interdisciplinary insights, it showcases how these technologies create real-time, adaptive systems tailored to individual users. Setting the tone for the book, this chapter outlines the future of empathetic, intelligent, and user-centered interaction design.