Editorial: Ear-Centered Sensing: From Sensing Principles to Research and Clinical Devices

Heart rate, respiratory rate, skin conductance, eye blink, and eye motion signals, as well as the electrical activity from muscles and the brain can be recorded from the ear. [...]the ears provide a discreet and natural anchoring point for placing the necessary wearable hardware, thereby reducing the visibility of integrated devices. [...]Favre-Félix et al. discuss how ear-EOG (electrooculography) can be used to estimate the direction of attention based on the eye gaze. 3. [...]for long-term usage sensor and amplifier technology need to be unobtrusive in every aspect: the materials need to be bio-compatible, adjust to the individual's anatomy and be comfortable to wear.