Analysis of heart rate variability during auditory stimulation periods in patients with schizophrenia
Abstract
The vulnerability-stress model is a hypothesis for symptom development in schizophrenia patients who are generally characterized by cardiac autonomic dysfunction. Therefore, measures of heart rate variability (HRV) have been widely used in schizophrenics for assessing altered cardiac autonomic regulations. The goal of this study was to analyze HRV of schizophrenia patients and healthy control subjects with exposure to auditory stimuli. More specifically, this study examines whether schizophrenia patients may exhibit distinctive time and frequency domain parameters of HRV from control subjects during at rest and auditory stimulation periods. Photoplethysmographic signals were used in the analysis of HRV. Nineteen schizophrenic patients and twenty healthy control subjects were examined during rest periods, while exposed to periods of white noise (WN) and relaxing music. Results indicate that HRV in patients was lower 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 higher low-frequency to high-frequency ratio. Moreover, while WN 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. We can conclude that HRV can be used as a sensitive index of emotion-related sympathetic activity in schizophrenia patients.
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Other studies have reported a trend towards a higher LF/HF ratio in schizophrenia compared with healthy control groups.
“In contrast, other studies have reported a trend towards a higher LF/HF ratio in SCZ compared to HC groups35–37.”
From Autonomic nervous system dysfunction in schizophrenia: impact on cognitive and metabolic health (2021) · cites this paper as [36]
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Altered interoception in schizophrenia and its role in subjective emotional experiencePreprint
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- Authors
- Akar, S. A., Kara, S., Latifoğlu, F., & Bilgiç, V.
- Affiliations
- Fatih University (TR)
- Corresponding author
- Akar, Saime Akdemir
- ORCID
- Kara, Sadık
- Venue
- Journal of Clinical Monitoring and Computing
- Published
- 2014-05-16
- Volume
- 29
- Issue
- 1
- Pages
- 153-162
- ISSN
- 1387-1307 (ISSN-L)
- 1573-2614
- OpenAlex
- W2035994160
- Cited by
- 35
- References
- 52
- Citations by year
- 2026: 2 · 2025: 2 · 2024: 3 · 2023: 2 · 2022: 3 · 2021: 3 · 2020: 2 · 2019: 3 · 2018: 3 · 2017: 2 · 2016: 7 · 2015: 3
- FWCI
- 2.74
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Journal of Clinical Monitoring and Computing (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Heart Rate Variability and Autonomic Control
- Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
- Physical Sciences › Engineering › Biomedical Engineering › Non-Invasive Vital Sign Monitoring
- Keywords
- heart rate variability, schizophrenia, cardiac autonomic dysfunction, vulnerability-stress model, auditory stimulation, white noise, relaxing music, parasympathetic activity, sympathetic activity, photoplethysmography, time and frequency domain analysis, emotions
- MeSH terms
- Acoustic Stimulation, Adult, Autonomic Nervous System, Female, Heart, Heart Rate, Humans, Male, Music, Noise, Rest, Schizophrenia, Software, Temperature, Time Factors, Reproducibility of Results, Models, Statistical, Case-Control Studies, Photoplethysmography
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