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ThinkMind // GLOBAL HEALTH 2012, The First International Conference on Global Health Challenges // View article global_health_2012_5_30_50082


Time and Frequency Domain Measures of Heart Rate Variability in Schizophrenia

Authors:
Saime Akdemir Akar
Sadık Kara
Fatma Latifoğlu
Vedat Bilgiç

Keywords: schizophrenia; heart rate variability; photoplethysmography; time and frequency domain measures.

Abstract:
It has been reported that schizophrenia patients have altered cardiac autonomic regulation and changed heart rate variability. The goal of this study was to analyze whether schizophrenia patients may exhibit distinctive Heart rate variability time and frequency domain parameters for control subjects compared both at rest and during auditory stimulation periods. Photoplethysmographic signals of thirteen schizophrenic patients and thirteen healthy subjects were used in the analysis of heart rate variability. Results show that heart rate in patients was higher than that of control subjects indicating autonomic dysfunction throughout the entire experiment. In comparison with control subjects, patients with schizophrenia exhibited lower high frequency power and a greater low-frequency to high-frequency ratio. Moreover, while alerting stimulus decreased parasympathetic activity in healthy subjects, no significant changes in heart rate and frequency-domain HRV parameters were observed between the auditory stimulation and rest periods in schizophrenia patients.

Pages: 108 to 112

Copyright: Copyright (c) IARIA, 2012

Publication date: October 21, 2012

Published in: conference

ISSN: 2308-4553

ISBN: 978-1-61208-243-1

Location: Venice, Italy

Dates: from October 21, 2012 to October 26, 2012

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