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Portable device for bi-emotional state identification using heart rate variability

Authors
 Sun K. Yoo  ;  ChungKi Lee  ;  GunKi Lee  ;  ByungChae Lee  ;  KeeSam Jeong  ;  YoonJung Park 
Citation
 Lecture Notes in Computer Science, Vol.4239 : 528-536, 2006 
Journal Title
Lecture Notes in Computer Science
ISSN
 0302-9743 
Issue Date
2006
Keywords
Heart Rate Variability ; Autonomic Nerve System ; Portable Device ; Ubiquitous Service ; Respiration Training
Abstract
For the Ubiquitous computing system, a well designed computer interface should have the ability of making the user feel comfortable so as to encourage user performance. In order to do this, systems should be able to identify the emotional state of the user. Thus, the identification of the user’s emotional state is of importance in developing context-related devices, which offer the optimal feedback to the user depending on the user’s emotional state. Those devices require portability and continuous measurement for daily use, which is particularly essential for an ubiquitous healthcare device. In this paper, the portable device for bi-emotional state identification was designed using heart rate variability (HRV) extracted from beat-to-beat photoplethysmography (PPG) waveforms. A portable wrist-band type PPG measuring device was equipped with a Bluetooth communication interface to provide mobility. HRV was estimated from smoothed differentiated PPG waveforms by the absolute value of the successive beat-to-beat interval difference. Two emotional states are artificially induced by a composed video clip, and then validated by the self-assessment Manikin method. The designed device was then applied to a respiration training device to adjust the balance level of the autonomous nervous system throughout the respiration pager, whose level changes in proportion to the estimated ratio between negative and positive emotional states. Experimentation using 19 male and six female participants demonstrated the feasibility of a ubiquitous emotional feedback control device.
Full Text
http://link.springer.com/chapter/10.1007/11890348_40
DOI
10.1007/11890348_40
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Medical Engineering (의학공학교실) > 1. Journal Papers
Yonsei Authors
Yoo, Sun Kook(유선국) ORCID logo https://orcid.org/0000-0002-6032-4686
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/111102
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