7 § EEG § Inertial Measurement Unit (IMU) sensors to detect movements of the head and face. § IMU measures changes in acceleration, orientation, and rotation, which allow the headset to detect head movements, such as tilting or nodding, as well as movements of the face, such as jaw clenching or mouth opening. Headset
8 1. Smile: The software recognizes a smile as an upward movement of the corners of the mouth (low-quality happy/agreement) 3. Clench: The software recognizes the clenching of the jaw 4. Mouth open: The software recognizes an open mouth Data
9 1.Raise Brow: The software recognizes the movement of raising the eyebrows (low-quality surprise) 2. Furrow Brow: The software recognizes the movement of raising the eyebrows (low-quality frustration) 1.Blink: The software recognizes a blink as a momentary closing of the eyes 3. Wink: The software recognizes a wink as a momentary closing of one eye Data
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