Off-line and On-line Stress Detection Through Processing of the Pupil Diameter Signal

@article{Ren2013OfflineAO,
  title={Off-line and On-line Stress Detection Through Processing of the Pupil Diameter Signal},
  author={Peng Ren and Armando Barreto and Jian Huang and Ying Gao and Francisco R. Ortega and Malek Adjouadi},
  journal={Annals of Biomedical Engineering},
  year={2013},
  volume={42},
  pages={162-176}
}
The pupil diameter (PD), controlled by the autonomic nervous system, seems to provide a strong indication of affective arousal, as found by previous research, but it has not been investigated fully yet. In this study, new approaches based on monitoring and processing the PD signal for off-line and on-line “relaxation” vs. “stress” differentiation are proposed. For the off-line approach, wavelet denoising, Kalman filtering, data normalization, and feature extraction are sequentially utilized… CONTINUE READING

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