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http://dx.doi.org/10.5392/JKCA.2018.18.02.370

The Recognition Method for Focus Level using ECG(electrocardiogram)  

Lee, Dong Won (상명대학교 감성공학과)
Park, Sangin (상명대학교 산학협력단)
Whang, Mincheol (상명대학교 미래융합공학대학 휴먼지능정보공학과)
Publication Information
The Journal of the Korea Contents Association / v.18, no.2, 2018 , pp. 370-377 More about this Journal
Abstract
Focus level has been important mental state in user study. Cardiac response has been related to focus and less clarified. The study was to determine cardiac parameters for recognizing focus level. The sixty participants were asked to play shooting game designed to control two focus levels. Electrocardiogram was measured during task. The parameters of time domain and frequency domain were determined from ECG. As a result of independent t-test, RRI, SDNN, rMSSD and pNN50 of time domain indicator were statistically significant in recognizing focus level. LF, HF, lnLF and lnHF of frequency domain were observed to be significant indicator. The rule base for recognition has been developed by the combination of RRI, rMSSD and lnHF. The rule base has been verified from another sixty data samples. The recognition accuracy were 95%. This study proposed significant cardiac indicators for recognizing focus level. The results provides objective measurement of focus in user interaction design in the fields of contents industry and service design.
Keywords
Focus; Emotion Recognition; Electrocardiogram;
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