Research / 2020 / Article / Fig 4

Research Article

3D Printed Ultrastretchable, Hyper-Antifreezing Conductive Hydrogel for Sensitive Motion and Electrophysiological Signal Monitoring

Figure 4

Performance of a flexible electrode made of the printed hydrogel for capturing human neural signals. (a) Illustration of the 3D printed flexible electrode acting as a human-machine interface. (b) The EOG of the nerve of horizontal rotation of the eye balls: the opposite signals indicate the EOG of right and left eyeballs. (c) The EOG signal of blinking the eyes. (d) The EEG signal of blinking the eyes. (e) The Fourier transformation of the signal of closing the eyes and relaxing. (f) The Fourier transformation of the signal of opening the eyes and focusing to show the neural activity.