Characterization of HRV and QRS slope during audiovisual stimulation
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Document typeConference report
Defense date2017
Rights accessRestricted access - publisher's policy
Abstract
Emotions are directly related whit external or internal
stimulation which a person is submitted, influencing these
stimuli on their physical and mental health. These emotional
changes produce variations in cardiovascular behavior and respiratory
activity. This research proposes the characterization
of cardiac system in healthy subject submitted to 3 different
audiovisual stimuli, by means of the analysis of Heart Rate
Variability (HRV) and upward and downward slopes of the
QRS complex. The electrocardiographic signal (3 leads) was
recorded from 29 healthy subjects. An audiovisual stimulation
protocol was designed. Principal characteristic of ECG signals
were extracted. After, a model was designed based on a Fuzzy
K Nearest Neighbors classifier to determine different cardiac
patterns related to each stimulus. Two classification procedure
were performed, the first comparing all groups of stimuli, and
the second comparing each pair of stimuli. These comparisons
were applied to each obtained characteristic, HRV, and slopes.
According to the results, HRV was able to differentiate between
basal state and fear, with an area under the curve of 79%. Finally,
two new healthy subjects were analysed with the obtained model.
The pattern used with HRV and the upward slope of QRS showed
clear differences between the propose stimuli.
CitationArcentales, A., Raza, M., Giraldo, B. Characterization of HRV and QRS slope during audiovisual stimulation. A: IEEE CHILECON2017. "Proceeding IEEE CHILECON2017". 2017, p. 1-4.
ISBN978-1-5386-3123-2
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