Heartscape: Biofeedback through Real-Time Abstract Heart Rate Visualization

We present Heartscape, a real-time heart coherence visualization system that transforms physiological data into abstract, dynamic shapes using Unreal Engine. Unlike traditional heart rate monitors, Heartscape visualizes heart rate, interbeat intervals, and coherence through the size, color, and movement of circles, creating an esthetically pleasant interface for emotional self-awareness. In our user study, participants reported that Heartscape enhanced focus during wellbeing activities, promoted calmness, and provided insights into their emotional states. There was strong user interest in daily adoption of Heartscape - both personally and for supporting others - which demonstrates how abstract physiological visualizations can make heart coherence data emotionally relevant and practically useful.