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Cui X, Wang J, Xue S, Qin Z, Peng CK. Quantifying the accuracy of inter-beat intervals acquired from consumer-grade photoplethysmography wristbands using an electrocardiogram-aided information-based similarity approach. Physiol Meas 2024; 45:035002. [PMID: 38387061 DOI: 10.1088/1361-6579/ad2c14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 02/22/2024] [Indexed: 02/24/2024]
Abstract
Objective. Although inter-beat intervals (IBI) and the derived heart rate variability (HRV) can be acquired through consumer-grade photoplethysmography (PPG) wristbands and have been applied in a variety of physiological and psychophysiological conditions, their accuracy is still unsatisfactory.Approach.In this study, 30 healthy participants concurrently wore two wristbands (E4 and Honor 5) and a gold-standard electrocardiogram (ECG) device under four conditions: resting, deep breathing with a frequency of 0.17 Hz and 0.1 Hz, and mental stress tasks. To quantitatively validate the accuracy of IBI acquired from PPG wristbands, this study proposed to apply an information-based similarity (IBS) approach to quantify the pattern similarity of the underlying dynamical temporal structures embedded in IBI time series simultaneously recorded using PPG wristbands and the ECG system. The occurrence frequency of basic patterns and their rankings were analyzed to calculate the IBS distance from gold-standard IBI, and to further calculate the signal-to-noise ratio (SNR) of the wristband IBI time series.Main results.The accuracies of both HRV and mental state classification were not satisfactory due to the low SNR in the wristband IBI. However, by rejecting data segments of SNR < 25, the Pearson correlation coefficients between the wristbands' HRV and the gold-standard HRV were increased from 0.542 ± 0.235 to 0.922 ± 0.120 for E4 and from 0.596 ± 0.227 to 0.859 ± 0.145 for Honor 5. The average accuracy of four-class mental state classification increased from 77.3% to 81.9% for E4 and from 79.3% to 83.3% for Honor 5.Significance.Consumer-grade PPG wristbands are acceptable for HR and HRV monitoring when removing low SNR segments. The proposed method can be applied for quantifying the accuracies of IBI and HRV indices acquired via any non-ECG system.
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Affiliation(s)
- Xingran Cui
- School of Biological Science and Medical Engineering, Southeast University, Nanjing, People's Republic of China
- Center for Nonlinear Dynamics in Medicine, Southeast University, Nanjing, People's Republic of China
| | - Jing Wang
- School of Biological Science and Medical Engineering, Southeast University, Nanjing, People's Republic of China
| | - Shan Xue
- School of Biological Science and Medical Engineering, Southeast University, Nanjing, People's Republic of China
| | - Zeguang Qin
- School of Biological Science and Medical Engineering, Southeast University, Nanjing, People's Republic of China
| | - Chung-Kang Peng
- School of Biological Science and Medical Engineering, Southeast University, Nanjing, People's Republic of China
- Center for Nonlinear Dynamics in Medicine, Southeast University, Nanjing, People's Republic of China
- Center for Dynamical Biomarkers, Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, United States of America
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De Calheiros Velozo J, Vaessen T, Claes S, Myin-Germeys I. Investigating adverse daily life effects following a psychosocial laboratory stress task, and the moderating role of Psychopathology. Stress 2024; 27:2380403. [PMID: 39028140 DOI: 10.1080/10253890.2024.2380403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 07/09/2024] [Indexed: 07/20/2024] Open
Abstract
Laboratory stress tasks are necessary to closely investigate the stress response in a controlled environment. However, to our knowledge, no study has tested whether participating in such tasks can pose any daily life adverse effect. Fifty-three healthy participants (46 women) took part in a laboratory session where stress was induced using a typical psychosocial stressor: the repeated Montreal Imaging Stress Task (rMIST). Average levels of negative affect (NA), heart rate (HR), root mean square of successive differences (RMSSD), and skin conductance level (SCL), as well as reactivity across all these parameters as measured with the experience sampling method (ESM) in the four days prior to the laboratory session were compared with the four days following the session. We also assessed whether vulnerability to psychopathology moderated these associations. Findings showed that the task did not pose any significant adverse effect on participants. However, there was an unexpected increase in average RMSSD and a decrease in average SCL pre- to post- task. In addition, more vulnerable individuals were more likely to experience an increase in average levels of NA in the days following the task compared to the days preceding it. Our findings suggest that laboratory stress tasks may pose a significant risk to more vulnerable individuals.
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Affiliation(s)
| | - Thomas Vaessen
- Center for Contextual Psychiatry, Department of Neurosciences, KU Leuven, Leuven, Belgium
- Faculty of Behavioural, Management and Social Sciences, Psychology, Health & Technology, University of Twente, Enschede, The Netherlands
- Mind Body Research, Department of Neurosciences, KU Leuven, Leuven, Belgium
| | - Stephan Claes
- Mind Body Research, Department of Neurosciences, KU Leuven, Leuven, Belgium
| | - Inez Myin-Germeys
- Center for Contextual Psychiatry, Department of Neurosciences, KU Leuven, Leuven, Belgium
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Moses TE, Gray E, Mischel N, Greenwald MK. Effects of neuromodulation on cognitive and emotional responses to psychosocial stressors in healthy humans. Neurobiol Stress 2023; 22:100515. [PMID: 36691646 PMCID: PMC9860364 DOI: 10.1016/j.ynstr.2023.100515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 12/19/2022] [Accepted: 01/09/2023] [Indexed: 01/12/2023] Open
Abstract
Physiological and psychological stressors can exert wide-ranging effects on the human brain and behavior. Research has improved understanding of how the sympatho-adreno-medullary (SAM) and hypothalamic-pituitary-adrenocortical (HPA) axes respond to stressors and the differential responses that occur depending on stressor type. Although the physiological function of SAM and HPA responses is to promote survival and safety, exaggerated psychobiological reactivity can occur in psychiatric disorders. Exaggerated reactivity may occur more for certain types of stressors, specifically, psychosocial stressors. Understanding stressor effects and how the body regulates these responses can provide insight into ways that psychobiological reactivity can be modulated. Non-invasive neuromodulation is one way that responding to stressors may be altered; research into these interventions may provide further insights into the brain circuits that modulate stress reactivity. This review focuses on the effects of acute psychosocial stressors and how neuromodulation might be effective in altering stress reactivity. Although considerable research into stress interventions focuses on treating pathology, it is imperative to first understand these mechanisms in non-clinical populations; therefore, this review will emphasize populations with no known pathology and consider how these results may translate to those with psychiatric pathologies.
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Affiliation(s)
| | | | | | - Mark K. Greenwald
- Corresponding author. Department of Psychiatry and Behavioral Neurosciences, Tolan Park Medical Building, 3901 Chrysler Service Drive, Suite 2A, Detroit, MI, 48201, USA.
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Kappen M, van der Donckt J, Vanhollebeke G, Allaert J, Degraeve V, Madhu N, Van Hoecke S, Vanderhasselt MA. Acoustic speech features in social comparison: how stress impacts the way you sound. Sci Rep 2022; 12:22022. [PMID: 36539505 PMCID: PMC9767914 DOI: 10.1038/s41598-022-26375-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 12/14/2022] [Indexed: 12/24/2022] Open
Abstract
The use of speech as a digital biomarker to detect stress levels is increasingly gaining attention. Yet, heterogeneous effects of stress on specific acoustic speech features have been observed, possibly due to previous studies' use of different stress labels/categories and the lack of solid stress induction paradigms or validation of experienced stress. Here, we deployed a controlled, within-subject psychosocial stress induction experiment in which participants received both neutral (control condition) and negative (negative condition) comparative feedback after solving a challenging cognitive task. This study is the first to use a (non-actor) within-participant design that verifies a successful stress induction using both self-report (i.e., decreased reported valence) and physiological measures (i.e., increased heart rate acceleration using event-related cardiac responses during feedback exposure). Analyses of acoustic speech features showed a significant increase in Fundamental Frequency (F0) and Harmonics-to-Noise Ratio (HNR), and a significant decrease in shimmer during the negative feedback condition. Our results using read-out-loud speech comply with earlier research, yet we are the first to validate these results in a well-controlled but ecologically-valid setting to guarantee the generalization of our findings to real-life settings. Further research should aim to replicate these results in a free speech setting to test the robustness of our findings for real-world settings and should include semantics to also take into account what you say and not only how you say it.
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Affiliation(s)
- Mitchel Kappen
- grid.5342.00000 0001 2069 7798Department of Head and Skin, Department of Psychiatry and Medical Psychology, Ghent University, University Hospital Ghent (UZ Ghent), Corneel Heymanslaan 10-13K12, 9000 Ghent, Belgium ,grid.5342.00000 0001 2069 7798Ghent Experimental Psychiatry (GHEP) Lab, Ghent University, Ghent, Belgium ,grid.5342.00000 0001 2069 7798Department of Experimental Clinical and Health Psychology, Ghent University, Ghent, Belgium
| | | | - Gert Vanhollebeke
- grid.5342.00000 0001 2069 7798Department of Head and Skin, Department of Psychiatry and Medical Psychology, Ghent University, University Hospital Ghent (UZ Ghent), Corneel Heymanslaan 10-13K12, 9000 Ghent, Belgium ,grid.5342.00000 0001 2069 7798Ghent Experimental Psychiatry (GHEP) Lab, Ghent University, Ghent, Belgium ,grid.5342.00000 0001 2069 7798Department of Electronics and Information Systems, Ghent University, Ghent, Belgium
| | - Jens Allaert
- grid.5342.00000 0001 2069 7798Department of Head and Skin, Department of Psychiatry and Medical Psychology, Ghent University, University Hospital Ghent (UZ Ghent), Corneel Heymanslaan 10-13K12, 9000 Ghent, Belgium ,grid.5342.00000 0001 2069 7798Ghent Experimental Psychiatry (GHEP) Lab, Ghent University, Ghent, Belgium ,grid.5342.00000 0001 2069 7798Department of Experimental Clinical and Health Psychology, Ghent University, Ghent, Belgium
| | - Vic Degraeve
- grid.5342.00000 0001 2069 7798IDLab, Ghent University-Imec, Ghent, Belgium
| | - Nilesh Madhu
- grid.5342.00000 0001 2069 7798IDLab, Ghent University-Imec, Ghent, Belgium
| | - Sofie Van Hoecke
- grid.5342.00000 0001 2069 7798IDLab, Ghent University-Imec, Ghent, Belgium
| | - Marie-Anne Vanderhasselt
- grid.5342.00000 0001 2069 7798Department of Head and Skin, Department of Psychiatry and Medical Psychology, Ghent University, University Hospital Ghent (UZ Ghent), Corneel Heymanslaan 10-13K12, 9000 Ghent, Belgium ,grid.5342.00000 0001 2069 7798Ghent Experimental Psychiatry (GHEP) Lab, Ghent University, Ghent, Belgium
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De Calheiros Velozo J, Vaessen T, Lafit G, Claes S, Myin-Germeys I. Is daily-life stress reactivity a measure of stress recovery? An investigation of laboratory and daily-life stress. Stress Health 2022. [PMID: 36521434 DOI: 10.1002/smi.3213] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 11/15/2022] [Accepted: 12/09/2022] [Indexed: 12/23/2022]
Abstract
Typical measures of laboratory reactivity (i.e. difference between control and stress) and recovery (i.e. difference between stress and post-stress) were compared with a conventional measure of daily-life reactivity, best known as event-related stress. Fifty-three healthy individuals between 19 and 35 years of age took part in a laboratory session where stress was induced using the repeated Montreal Imaging Stress Task and 8 days of experience sampling method. Measures of negative affect, heart rate (HR), HR variability, and skin conductance level were collected. Findings show no strong associations between laboratory and daily life measures with the exception of laboratory affective recovery and daily life reactivity. Findings and their implications are discussed.
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Affiliation(s)
| | - Thomas Vaessen
- Department of Neurosciences, Center for Contextual Psychiatry, KU Leuven, Leuven, Belgium.,Faculty of Behavioural, Management and Social Sciences, Psychology, Health & Technology, University of Twenty, Enschede, The Netherlands.,Department of Neurosciences, Mind Body Research, KU Leuven, Leuven, Belgium
| | - Ginette Lafit
- Department of Neurosciences, Center for Contextual Psychiatry, KU Leuven, Leuven, Belgium.,Research Group of Quantitative Psychology and Individual Differences, Faculty of Psychology, KU Leuven, Leuven, Belgium
| | - Stephan Claes
- Department of Neurosciences, Mind Body Research, KU Leuven, Leuven, Belgium
| | - Inez Myin-Germeys
- Department of Neurosciences, Center for Contextual Psychiatry, KU Leuven, Leuven, Belgium
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