International Journal of Engineering and Manufacturing (IJEM)
IJEM Vol. 7, No. 3, 8 May 2017
Cover page and Table of Contents: PDF (size: 379KB)
A Simple Emotion Discrimination Technique Based on Triangle Phase Space Mapping of HRV Signals
Full Text (PDF, 379KB), PP.41-48
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Author(s)
Ateke Goshvarpour
1
Ataollah Abbasi
1,*
Atefeh Goshvarpour
1
Index Terms
Emotion, Gender, Heart Rate, Nonlinear Dynamics, Statistical Data Analysis
Abstract
Physiological signal processing techniques are commonly used in emotion recognition. Heart rate variability (HRV) is an important tool in disease diagnosis and psychological investigations. Because of the chaotic nature of HRV, customary methods may not be proficient. Taking the advantage of geometrically based algorithms can lead to the uncomplicated and better representation of heart rate dynamics. The aim of this study was to test whether a simple HRV measure, based on triangle phase space mapping and polynomial fitting, provides a useful emotion recognition technique. HRV of women (n = 12) aged 19-25 years were compared to that of 12 matched aged men, while subjects were induced by four emotional stimuli: happy, sad, afraid, and relax. Kruskal-Wallis test was applied to show the level of significance of the features. The results confirm that emotional responses to sad, afraid and relax stimuli can be differentiated by the proposed indices. In addition, they are significantly different in both genders' physiological reactions. It seems that the suggested simple quantifiers are most promising in offering new insight into the dynamics assessments of HRV signals in different emotional states.
Cite This Paper
Ateke Goshvarpour, Ataollah Abbasi, Atefeh Goshvarpour,"A Simple Emotion Discrimination Technique Based on Triangle Phase Space Mapping of HRV Signals", International Journal of Engineering and Manufacturing(IJEM), Vol.7, No.3, pp.41-48, 2017. DOI: 10.5815/ijem.2017.03.05
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