Abstract: Study Sample and Ethics Statement The sample consisted of 71 university students, average age 20.38 years (SD = 2.96), 78.8% female. Subjects with previous cardio-vascular disorders and irregular ECG were excluded. The study has been approved by the Institutional Review Board of the Department of Psychology, University of Belgrade No. 2018-19. All participants signed Informed Consents in accordance with the Declaration of Helsinki. In the course of visual examination, it was decided to discard ECG from one subject due to the presence of bigemin...
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