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Wearable-Measured Sleep and Resting Heart Rate Variability as an Outcome of and Predictor for Subjective Stress Measures: A Multiple N-of-1 Observational Study

de Vries, H.J. (author), Pennings, H.J.M. (author), van der Schans, C.P. (author), Sanderman, R. (author), Oldenhuis, H.K.E. (author), Kamphuis, W. (author)

The effects of stress may be alleviated when its impact or a decreased stress-resilience are detected early. This study explores whether wearable-measured sleep and resting HRV in police officers can be predicted by stress-related Ecological Momentary Assessment (EMA) measures in preceding days and predict stress-related EMA outcomes in...

article 2023

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Does Wearable-Measured Heart Rate Variability During Sleep Predict Perceived Morning Mental and Physical Fitness?

de Vries, H. (author), Oldenhuis, H. (author), van der Schans, C. (author), Sanderman, R. (author), Kamphuis, W. (author)

The emergence of wearable sensor technology may provide opportunities for automated measurement of psychophysiological markers of mental and physical fitness, which can be used for personalized feedback. This study explores to what extent within-subject changes in resting heart rate variability (HRV) during sleep predict the perceived mental and...

article 2023

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Associations between Autonomic and Endocrine Reactivity to Stress in Adolescence: Related to the Development of Anxiety?

Stam, J.V. (author), Kallen, V.L. (author), Westenberg, P.M. (author)

Internalizing disorders in adolescence have been associated with disturbances in autonomic and endocrine functioning. Because the prefrontal cortex and the limbic system play a central role in regulating both the autonomic and the endocrine systems, their joint functioning is hypothesized to provide information about the potential development of...

article 2023

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Trends in Daily Heart Rate Variability Fluctuations Are Associated with Longitudinal Changes in Stress and Somatisation in Police Officers

de Vries, H. (author), Kamphuis, W. (author), van der Schans, C. (author), Sanderman, R. (author), Oldenhuis, H. (author)

The emergence of wearable sensors that allow for unobtrusive monitoring of physiological and behavioural patterns introduces new opportunities to study the impact of stress in a real-world context. This study explores to what extent within-subject trends in daily Heart Rate Variability (HRV) and daily HRV fluctuations are associated with...

article 2022

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Moderation of the stressor-strain process in interns by heart rate variability measured with a wearable and smartphone app: Within-subject design using continuous monitoring

de Vries, H. (author), Kamphuis, W. (author), Oldenhuis, H. (author), van der Schans, C. (author), Sanderman, R. (author)

Background: The emergence of smartphones and wearable sensor technologies enables easy and unobtrusive monitoring of physiological and psychological data related to an individual’s resilience. Heart rate variability (HRV) is a promising biomarker for resilience based on between-subject population studies, but observational studies that apply a...

article 2021

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Psychophysiological Models to Identify and Monitor Elderly with a Cardiovascular Condition: The Added Value of Psychosocial Parameters to Routinely Applied Physiological Assessments

Kallen, V. (author), Marck, J.W. (author), Stam, J. (author), Issa, A. (author), Johnson, B. (author), van Meeteren, N. (author)

The steadily growing elderly population calls for efficient, reliable and preferably ambulant health supervision. Since cardiovascular risk factors interact with psychosocial strain (e.g., depression), we investigated the potential contribution of psychosocial factors in discriminating generally healthy elderly from those with a cardiovascular...

article 2020

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No effects of successful bidirectional SMR feedback training on objective and subjective sleep in healthy subjects

Binsch, O. (author), Wilschut, E.S. (author), Arns, M. (author), Bottenheft, C. (author), Valk, P.J.L. (author), Vermetten, H.G.J.M. (author)

There is a growing interest in the application of psychophysiological signals in more applied settings. Unidirectional sensory motor rhythm-training (SMR) has demonstrated consistent effects on sleep. In this study the main aim was to analyze to what extent participants could gain voluntary control over sleep-related parameters and secondarily...

article 2018

document

How to improve human-robot interaction with Conversational Fillers

Wigdor, N. (author), de Greeff, J. (author), Looije, R. (author), Neerincx, M.A. (author)

Conversation Fillers (CFs), such as ‘um’, ‘hmm’, and ‘ah’, may help to improve the human-robot interaction by smoothening the robot’s responses. This paper presents the design and test of such CFs – alongside iconic pensive or acknowledging gestures – for Wizard of Oz (WoZ) controlled open-ended dialogues in child-robot interactions. A...

conference paper 2016

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Neuroticism, extraversion, conscientiousness and stress: Physiological correlates

Brouwer, A.M. (author), van Schaik, M.G. (author), Korteling, J.E. (author), van Erp, J.B.F. (author), Toet, A. (author)

High extraversion and conscientiousness and low neuroticism predict successful performance during and after stressful conditions. We investigated whether these personality factors are linked to stress sensitivity and to baseline physiology. Stress was induced through negative feedback on gaming performance. Stress sensitivity was determined as...

article 2015

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Modelling environmental and cognitive factors to predict performance in a stressful training scenario on a naval ship simulator

Cohen, I. (author), Brinkman, W.P. (author), Neerincx, M.A. (author)

Professionals working in risky or emergency situations have to make very accurate decisions, while the quality of the decisions might be affected by the stress that these situations bring about. Integrating task feedback and biofeedback into computer-based training environments could improve trainees’ stress-coping behaviour. This paper presents...

article 2015

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Heart rate variability and skin conductance biofeedback: A triple-blind randomized controlled study

Raaijmakers, S.F. (author), Steel, F.W. (author), de Goede, M. (author), van Wouwe, N.C. (author), van Erp, J.B.F. (author), Brouwer, A.M. (author)

High heart rate variability (HRV) and low skin conductance level (SCL) have been associated with low levels of stress. Biofeedback - providing an individual with online information about his or her own physiological state – may help to change these signals in the desired direction and therewith improve an individual’s physical or mental...

conference paper 2013

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Physiological correlates of stress in individuals about to undergo eye laser surgery

Hogervorst, M.A. (author), Brouwer, A.M. (author), Vos, W.K. (author)

We examined to what extent we can distinguish between ‘real-life’ stressed and relaxed participants on the basis of heart rate (HR), heart rate variability (HRV) and skin conductance level (SCL) as measured during rest. Physiological and subjective measures were compared between individuals that were to undergo eye laser surgery and a control...

conference paper 2013

document

Neuroticism, extraversion and stress: Physiological correlates

Brouwer, A.M. (author), van Schaik, M.G. (author), van Erp, J.B.F. (author), Korteling, J.E. (author)

Low neuroticism and high extraversion seem to be predictors for people performing well during and after extremely stressful circumstances. Here we investigate whether these personality factors are linked to stress sensitivity. Stress was induced through negative feedback on gaming performance and stress sensitivity was determined as the...

conference paper 2013

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A systematic review on heart-rate recovery to monitor changes in training status in athletes

Daanen, H.A.M. (author), Lamberts, R.P. (author), Kallen, V.L. (author), Jin, A. (author), Meeteren, N.L.U. (author)

Heart-rate recovery (HRR) has been proposed as a marker of autonomic function and training status in athletes. The authors performed a systematic review of studies that examined HRR after training. Five cross-sectional studies and 8 studies investigating changes over time (longitudinal) met our criteria. Three out of 5 cross-sectional studies...

article 2012

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Creatief gedrag gekleurd. Hoe ontmoetingsruimten creativiteit kunnen beïnvloeden

de Korte, E. (author), Kuijt, L. (author), van der Kleij, R. (author)

article 2011

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Effects of meeting room interior design on team performance in a creativity task

de Korte, E. (author), Kuijt, L. (author), van der Kleij, R. (author)

This study examines the effects of spatial characteristics of meeting rooms on the divergent phase in the creativity process of a group and on the mood states arousal and psychological safety. Thirty participants (12 male and 18 female) were randomly allocated to 10 mixed-gender three-person groups. They performed two creativity tasks in three...

conference paper 2011

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Real-Time Physiological and Psycho-Physiological Status Monitoring

TNO Defensie en Veiligheid (author), Hoyt, R.W. (author), Buller, M.J. (author), Gunga, H. (author), Werner, A. (author), Sattler, F. (author), Koch, J. (author), Nevola, V.R. (author), Ledderhos, C. (author), Valk, P. (author)

Dismounted warfighting groups are increasingly recognizing the benefits of knowing the medical status information that body-worn computerized physiological sensor systems can provide. This report on real-time physiological and psycho-physiological status monitoring reviews: a) Physiological monitoring system architectures, methods for managing...

report 2010

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Evaluation of the effects of a training programme for patients with prolonged fatigue on physiological parameters and fatigue complaints

Joosen, M. (author), Sluiter, J. (author), Joling, C. (author), Frings-Dresen, M. (author), TNO Kwaliteit van Leven (author)

Objectives: Complaints of prolonged fatigue are considered as a major health problem, as it can affect daily functioning and may lead to work disability. To increase knowledge about the effectiveness of interventions focussing on fatigued patients, a study was designed to evaluate an established training programme for patients with prolonged...

article 2008

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Correlations between the Poincaré plot and conventional heart rate variability parameters assessed during paced breathing

Guzik, P. (author), Piskorski, J. (author), Krauze, T. (author), Schneider, R. (author), Wesseling, K.H. (author), Wykrȩtowicz, A. (author), Wysocki, H. (author), TNO Biomedical Instrumentation (author)

Aim: To analyze the correlation of the Poincaré plot descriptors of RR intervals with standard measures of heart rate variability (HRV) and spontaneous baroreflex sensitivity (BRS). A physiological model of changing respiratory rates from 6 to 15 breaths/min provided a wide range of RR intervals for analysis. Material and methods: Beat-to-beat...

article 2007

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Time-domain cross-correlation baroreflex sensitivity: Performance on the EUROBAVAR data set

Westerhof, B.E. (author), Gisolf, J. (author), Stok, W.J. (author), Wesseling A, K.H. (author), Karemaker, J.M. (author), TNO Biomedical Instrumentation Technisch Physische Dienst TNO - TH (author)

Objective: To test a new method (cross-correlation baroreflex sensitivity, xBRS) for the computation of time-domain baroreflex sensitivity on spontaneous blood pressure and heart interval variability using the EUROBAVAR data set. Methods: We applied xBRS to the 42 records in the EUROBAVAR data set, obtained from 21 patients in the lying and...

article 2004