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Published in: Trials 1/2022

Open Access 01-12-2022 | Study protocol

Psychosocial stress induction in vivo vs. in virtuo and the influence of a health app on the acute stress reaction in youths: a study protocol for a randomized controlled trial

Authors: Daniel Schleicher, Angelika Ecker, Martin Kocur, Irina Jarvers, Colin Nash, Leonie Götz, Alexandra H. Otto, Stephanie Kandsperger, Romuald Brunner

Published in: Trials | Issue 1/2022

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Abstract

Background

Acute and everyday stress is substantial for the development of mental and physical diseases, therefore it is crucial to get a better understanding of its pathogenesis. Different methods (e.g., Ambulatory Assessment) and stress reactivity paradigms (e.g., Trier Social Stress Test / TSST) in laboratory settings are often used to investigate basic mechanisms of this process. Due to the technological progress of the last years and especially due to children and adolescents growing up with it, the application of these developments in clinical research is reasonable. The aim of this project is to successfully transfer the TSST for children and adolescents into the virtual world, which will be compared to a real TSST situation. Physiological and psychological stress reactions will be analyzed in order to assess similarities and differences. Moreover, it will be investigated whether a Heart Coherence Exercise (HCE) has a stronger influence on coping with acute stress compared to Natural Relaxation (NR).

Methods

This single-center experimental study will examine acute and everyday stress and coping processes in eighty-four healthy children and adolescents between the ages of 11 and 17. For everyday stress, different parameters (e.g., hormonal profiles and mood ratings) as well as a history of stressful life events and utilized coping methods will be recorded and a relaxation exercise will be practiced on a smartphone over 2 days. Regarding the acute stress reaction, the participants will be confronted either with the virtual or the real version of the TSST, followed by the trained relaxation exercise (HCE vs. NR). Physiological (e.g., cortisol and heart rate) and psychological stress markers (e.g., mood and gaze behavior) will be recorded continuously.

Discussion

Studies are sparse using a virtual version of the TSST in children and adolescents. A successful virtual TSST would constitute an economical variant, which would also make it easier to administer it in clinical or population-based samples. Effective ambulatory relaxation exercises would be a useful addition to clinical treatment approaches.

Trial registration

The study is registered in the German Clinical Trials Register since 10 August 2020 (DRKS00022063).
Literature
1.
go back to reference Heim C, Binder EB. Current research trends in early life stress and depression: review of human studies on sensitive periods, gene-environment interactions, and epigenetics. Exp Neurol. 2012;233(1):102–11.PubMedCrossRef Heim C, Binder EB. Current research trends in early life stress and depression: review of human studies on sensitive periods, gene-environment interactions, and epigenetics. Exp Neurol. 2012;233(1):102–11.PubMedCrossRef
3.
go back to reference Enoch M-A. The role of early life stress as a predictor for alcohol and drug dependence. Psychopharmacology. 2011;214(1):17–31.PubMedCrossRef Enoch M-A. The role of early life stress as a predictor for alcohol and drug dependence. Psychopharmacology. 2011;214(1):17–31.PubMedCrossRef
4.
go back to reference Levine S, Ursin H. What is stress? In: Brown MR, Koob GF, Rivier C, editors. Stress - Neurobiology and Neuroendocrinology. New York: Marcel Dekker; 1991. p. 3–21. Levine S, Ursin H. What is stress? In: Brown MR, Koob GF, Rivier C, editors. Stress - Neurobiology and Neuroendocrinology. New York: Marcel Dekker; 1991. p. 3–21.
5.
go back to reference Fairchild G, Baker E, Eaton S. Hypothalamic-pituitary-adrenal axis function in children and adults with severe antisocial behavior and the impact of early adversity. Curr Psychiatry Rep. 2018;20(10):84.PubMedPubMedCentralCrossRef Fairchild G, Baker E, Eaton S. Hypothalamic-pituitary-adrenal axis function in children and adults with severe antisocial behavior and the impact of early adversity. Curr Psychiatry Rep. 2018;20(10):84.PubMedPubMedCentralCrossRef
6.
go back to reference Kirschbaum C, Pirke K-M, Hellhammer DH. The ‘Trier Social Stress Test’–a tool for investigating psychobiological stress responses in a laboratory setting. Neuropsychobiology. 1993;28(1-2):76–81.PubMedCrossRef Kirschbaum C, Pirke K-M, Hellhammer DH. The ‘Trier Social Stress Test’–a tool for investigating psychobiological stress responses in a laboratory setting. Neuropsychobiology. 1993;28(1-2):76–81.PubMedCrossRef
7.
go back to reference Dickerson SS, Kemeny ME. Acute stressors and cortisol responses: a theoretical integration and synthesis of laboratory research. Psychol Bull. 2004;130(3):355.PubMedCrossRef Dickerson SS, Kemeny ME. Acute stressors and cortisol responses: a theoretical integration and synthesis of laboratory research. Psychol Bull. 2004;130(3):355.PubMedCrossRef
8.
go back to reference Buske-Kirschbaum A, Jobst S, Wustmans A, Kirschbaum C, Rauh W, Hellhammer D. Attenuated free cortisol response to psychosocial stress in children with atopic dermatitis. Psychosom Med. 1997;59(4):419–26.PubMedCrossRef Buske-Kirschbaum A, Jobst S, Wustmans A, Kirschbaum C, Rauh W, Hellhammer D. Attenuated free cortisol response to psychosocial stress in children with atopic dermatitis. Psychosom Med. 1997;59(4):419–26.PubMedCrossRef
9.
go back to reference Bae YJ, Stadelmann S, Klein AM, Jaeger S, Hiemisch A, Kiess W, et al. The hyporeactivity of salivary cortisol at stress test (TSST-C) in children with internalizing or externalizing disorders is contrastively associated with α-amylase. J Psychiatr Res. 2015;71:78–88.PubMedCrossRef Bae YJ, Stadelmann S, Klein AM, Jaeger S, Hiemisch A, Kiess W, et al. The hyporeactivity of salivary cortisol at stress test (TSST-C) in children with internalizing or externalizing disorders is contrastively associated with α-amylase. J Psychiatr Res. 2015;71:78–88.PubMedCrossRef
10.
go back to reference Kudielka BM, Hellhammer J, Hellhammer DH, Wolf OT, Pirke K-M, Varadi E, et al. Sex differences in endocrine and psychological responses to psychosocial stress in healthy elderly subjects and the impact of a 2-week dehydroepiandrosterone treatment. J Clin Endocrinol Metab. 1998;83(5):1756–61.PubMed Kudielka BM, Hellhammer J, Hellhammer DH, Wolf OT, Pirke K-M, Varadi E, et al. Sex differences in endocrine and psychological responses to psychosocial stress in healthy elderly subjects and the impact of a 2-week dehydroepiandrosterone treatment. J Clin Endocrinol Metab. 1998;83(5):1756–61.PubMed
11.
go back to reference Helminen EC, Morton ML, Wang Q, Felver JC. A meta-analysis of cortisol reactivity to the Trier Social Stress Test in virtual environments. Psychoneuroendocrinology. 2019;110:104437.PubMedCrossRef Helminen EC, Morton ML, Wang Q, Felver JC. A meta-analysis of cortisol reactivity to the Trier Social Stress Test in virtual environments. Psychoneuroendocrinology. 2019;110:104437.PubMedCrossRef
12.
go back to reference Zimmer P, Buttlar B, Halbeisen G, Walther E, Domes G. Virtually stressed? A refined virtual reality adaptation of the Trier Social Stress Test (TSST) induces robust endocrine responses. Psychoneuroendocrinology. 2019;101:186–92.PubMedCrossRef Zimmer P, Buttlar B, Halbeisen G, Walther E, Domes G. Virtually stressed? A refined virtual reality adaptation of the Trier Social Stress Test (TSST) induces robust endocrine responses. Psychoneuroendocrinology. 2019;101:186–92.PubMedCrossRef
13.
go back to reference Verdejo-Garcia A, Moreno-Padilla M, Garcia-Rios MC, Lopez-Torrecillas F, Delgado-Rico E, Schmidt-Rio-Valle J, et al. Social stress increases cortisol and hampers attention in adolescents with excess weight. PLoS One. 2015;10(4):e0123565.PubMedPubMedCentralCrossRef Verdejo-Garcia A, Moreno-Padilla M, Garcia-Rios MC, Lopez-Torrecillas F, Delgado-Rico E, Schmidt-Rio-Valle J, et al. Social stress increases cortisol and hampers attention in adolescents with excess weight. PLoS One. 2015;10(4):e0123565.PubMedPubMedCentralCrossRef
14.
15.
go back to reference Domes G, Stächele T, von Dawans B, Heinrichs M. Effects of internet-based stress management on acute cortisol stress reactivity: preliminary evidence using the Trier Social Stress Test for Groups (TSST-G). Psychoneuroendocrinology. 2019;105:117–22.PubMedCrossRef Domes G, Stächele T, von Dawans B, Heinrichs M. Effects of internet-based stress management on acute cortisol stress reactivity: preliminary evidence using the Trier Social Stress Test for Groups (TSST-G). Psychoneuroendocrinology. 2019;105:117–22.PubMedCrossRef
16.
go back to reference Lohaus A, Domsch H, Fridrici M. Stressbewältigung für Kinder und Jugendliche. Heidelberg: Springer; 2007. Lohaus A, Domsch H, Fridrici M. Stressbewältigung für Kinder und Jugendliche. Heidelberg: Springer; 2007.
17.
go back to reference Edwards SD. Evaluation of heart rhythm coherence feedback training on physiological and psychological variables. South Afr J Psychol. 2014;44(1):73–82.CrossRef Edwards SD. Evaluation of heart rhythm coherence feedback training on physiological and psychological variables. South Afr J Psychol. 2014;44(1):73–82.CrossRef
18.
go back to reference Wang K, Varma DS, Prosperi M. A systematic review of the effectiveness of mobile apps for monitoring and management of mental health symptoms or disorders. J Psychiatr Res. 2018;107:73–8.PubMedCrossRef Wang K, Varma DS, Prosperi M. A systematic review of the effectiveness of mobile apps for monitoring and management of mental health symptoms or disorders. J Psychiatr Res. 2018;107:73–8.PubMedCrossRef
19.
go back to reference Kirschbaum C, Kudielka BM, Gaab J, Schommer NC, Hellhammer DH. Impact of gender, menstrual cycle phase, and oral contraceptives on the activity of the hypothalamus-pituitary-adrenal axis. Psychosom Med. 1999;61(2):154–62.PubMedCrossRef Kirschbaum C, Kudielka BM, Gaab J, Schommer NC, Hellhammer DH. Impact of gender, menstrual cycle phase, and oral contraceptives on the activity of the hypothalamus-pituitary-adrenal axis. Psychosom Med. 1999;61(2):154–62.PubMedCrossRef
21.
go back to reference Goodman WK, Janson J, Wolf JM. Meta-analytical assessment of the effects of protocol variations on cortisol responses to the Trier Social Stress Test. Psychoneuroendocrinology. 2017;80:26–35.PubMedCrossRef Goodman WK, Janson J, Wolf JM. Meta-analytical assessment of the effects of protocol variations on cortisol responses to the Trier Social Stress Test. Psychoneuroendocrinology. 2017;80:26–35.PubMedCrossRef
25.
go back to reference Chiquet S, Martarelli CS, Mast FW. Eye movements to absent objects during mental imagery and visual memory in immersive virtual reality. Virtual Reality. 2021;25:655–67. Chiquet S, Martarelli CS, Mast FW. Eye movements to absent objects during mental imagery and visual memory in immersive virtual reality. Virtual Reality. 2021;25:655–67.
26.
go back to reference Erdfelder E, Faul F, Buchner A. GPOWER: A general power analysis program. Behav Res Methods Instrum Comput. 1996;28(1):1–11.CrossRef Erdfelder E, Faul F, Buchner A. GPOWER: A general power analysis program. Behav Res Methods Instrum Comput. 1996;28(1):1–11.CrossRef
27.
go back to reference Hoffmann RM, Müller T, Hajak G, Cassel W. Abend-Morgenprotokolle in Schlafforschung und Schlafmedizin—Ein Standardinstrument für den deutschsprachigen Raum. Somnologie. 1997;1(3):103–9.CrossRef Hoffmann RM, Müller T, Hajak G, Cassel W. Abend-Morgenprotokolle in Schlafforschung und Schlafmedizin—Ein Standardinstrument für den deutschsprachigen Raum. Somnologie. 1997;1(3):103–9.CrossRef
28.
go back to reference Torres T, Blanca M, Baena F, Espejo M, Montero E, Muñoz A. Assessment of stress in childhood: Children’s Daily Stress Inventory (Inventario Infantil de Estresores Cotidiano, IIEC). Psicothema. 2009;21:598–603. Torres T, Blanca M, Baena F, Espejo M, Montero E, Muñoz A. Assessment of stress in childhood: Children’s Daily Stress Inventory (Inventario Infantil de Estresores Cotidiano, IIEC). Psicothema. 2009;21:598–603.
29.
go back to reference Eschenbeck H, Kohlmann C-W, Lohaus A, Klein-Heßling J. Die Diagnostik von Stressbewältigung mit dem “Fragebogen zur Erhebung von Stress und Stressbewältigung im Kindes-und Jugendalter” (SSKJ 3-8). Diagnostica. 2006;52(3):131–42.CrossRef Eschenbeck H, Kohlmann C-W, Lohaus A, Klein-Heßling J. Die Diagnostik von Stressbewältigung mit dem “Fragebogen zur Erhebung von Stress und Stressbewältigung im Kindes-und Jugendalter” (SSKJ 3-8). Diagnostica. 2006;52(3):131–42.CrossRef
30.
go back to reference Weiß R. Grundintelligenztest Skala 2-Revision (CFT 20-R). Göttingen: Hogrefe; 2006. Weiß R. Grundintelligenztest Skala 2-Revision (CFT 20-R). Göttingen: Hogrefe; 2006.
31.
go back to reference Sheehan DV, Lecrubier Y, Sheehan KH, Amorim P, Janavs J, Weiller E, et al. The Mini-International Neuropsychiatric Interview (MINI): the development and validation of a structured diagnostic psychiatric interview for DSM-IV and ICD-10. J Clin Psychiatry. 1998;59(Suppl 20):22–33.PubMed Sheehan DV, Lecrubier Y, Sheehan KH, Amorim P, Janavs J, Weiller E, et al. The Mini-International Neuropsychiatric Interview (MINI): the development and validation of a structured diagnostic psychiatric interview for DSM-IV and ICD-10. J Clin Psychiatry. 1998;59(Suppl 20):22–33.PubMed
32.
go back to reference Döpfner M, Plück J, Kinnen C. CBCL/6-18R, TRF/6-18R, YSR/11-18R. Deutsche Schulalter-Formen der Child Behavior Checklist von Thomas M. Achenbach. Göttingen: Hogrefe; 2014. Döpfner M, Plück J, Kinnen C. CBCL/6-18R, TRF/6-18R, YSR/11-18R. Deutsche Schulalter-Formen der Child Behavior Checklist von Thomas M. Achenbach. Göttingen: Hogrefe; 2014.
33.
go back to reference Petersen AC, Crockett L, Richards M, Boxer A. A self-report measure of pubertal status: Reliability, validity, and initial norms. J Youth Adolesc. 1988;17(2):117–33.PubMedCrossRef Petersen AC, Crockett L, Richards M, Boxer A. A self-report measure of pubertal status: Reliability, validity, and initial norms. J Youth Adolesc. 1988;17(2):117–33.PubMedCrossRef
34.
go back to reference Goth K, Schmeck K, JTCI. Das Junior Temperament und Charakter Inventar: Eine Inventarfamilie zur Erfassung der Persönlichkeit vom Kindergarten bis zum Jugendalter nach Cloningers biopsychosozialem Persönlichkeitsmodell. Göttingen: Hogrefe; 2009. Goth K, Schmeck K, JTCI. Das Junior Temperament und Charakter Inventar: Eine Inventarfamilie zur Erfassung der Persönlichkeit vom Kindergarten bis zum Jugendalter nach Cloningers biopsychosozialem Persönlichkeitsmodell. Göttingen: Hogrefe; 2009.
35.
go back to reference Rammstedt B, John OP. Measuring personality in one minute or less: a 10-item short version of the Big Five Inventory in English and German. J Res Pers. 2007;41(1):203–12.CrossRef Rammstedt B, John OP. Measuring personality in one minute or less: a 10-item short version of the Big Five Inventory in English and German. J Res Pers. 2007;41(1):203–12.CrossRef
36.
go back to reference Beck AT, Epstein N, Brown G, Steer RA. An inventory for measuring clinical anxiety: psychometric properties. J Consult Clin Psychol. 1988;56(6):893.PubMedCrossRef Beck AT, Epstein N, Brown G, Steer RA. An inventory for measuring clinical anxiety: psychometric properties. J Consult Clin Psychol. 1988;56(6):893.PubMedCrossRef
37.
go back to reference Margraf J, Ehlers A. Beck Angstinventar. Deutsche Version (BAI). Göttingen: Hogrefe; 2002. Margraf J, Ehlers A. Beck Angstinventar. Deutsche Version (BAI). Göttingen: Hogrefe; 2002.
38.
go back to reference Laux L, Hock M, Bergner-Köther R, Hodapp V, Renner K-H, STADI. State-Trait-Angst-Depressions-Inventar. Göttingen: Hogrefe; 2013. Laux L, Hock M, Bergner-Köther R, Hodapp V, Renner K-H, STADI. State-Trait-Angst-Depressions-Inventar. Göttingen: Hogrefe; 2013.
40.
go back to reference Werner R, von Collani G. Deutscher Aggressionsfragebogen. Zusammenstellung sozialwissenschaftlicher Items und Skalen. Bonn: GESIS; 2004. Werner R, von Collani G. Deutscher Aggressionsfragebogen. Zusammenstellung sozialwissenschaftlicher Items und Skalen. Bonn: GESIS; 2004.
41.
go back to reference Spinella M. Normative data and a short form of the Barratt Impulsiveness Scale. Int J Neurosci. 2007;117(3):359–68.PubMedCrossRef Spinella M. Normative data and a short form of the Barratt Impulsiveness Scale. Int J Neurosci. 2007;117(3):359–68.PubMedCrossRef
42.
go back to reference Meule A, Vögele C, Kübler A. Psychometrische Evaluation der deutschen Barratt Impulsiveness Scale–Kurzversion (BIS-15): Göttingen: Diagnostica; 2011. Meule A, Vögele C, Kübler A. Psychometrische Evaluation der deutschen Barratt Impulsiveness Scale–Kurzversion (BIS-15): Göttingen: Diagnostica; 2011.
43.
go back to reference Raine A, Chen FR. The Cognitive, Affective, and Somatic Empathy Scales (CASES) for Children. J Clin Child Adolesc Psychol. 2018;47(1):24–37.PubMedCrossRef Raine A, Chen FR. The Cognitive, Affective, and Somatic Empathy Scales (CASES) for Children. J Clin Child Adolesc Psychol. 2018;47(1):24–37.PubMedCrossRef
44.
go back to reference Schleicher D, Jarvers I, Raine A, Brunner R. The Cognitive, Affective, and Somatic Empathy Scales – German version (CASES-G); 2021.CrossRef Schleicher D, Jarvers I, Raine A, Brunner R. The Cognitive, Affective, and Somatic Empathy Scales – German version (CASES-G); 2021.CrossRef
45.
go back to reference Rieffe C, Oosterveld P, Terwogt MM. An alexithymia questionnaire for children: factorial and concurrent validation results. Personal Individ Differ. 2006;40(1):123–33.CrossRef Rieffe C, Oosterveld P, Terwogt MM. An alexithymia questionnaire for children: factorial and concurrent validation results. Personal Individ Differ. 2006;40(1):123–33.CrossRef
46.
go back to reference Jarvers I, Ecker A, Schleicher D, Otto A, Jarvers C. The Alexithymia Questionnaire for Children – German version (AQC-G); 2022.CrossRef Jarvers I, Ecker A, Schleicher D, Otto A, Jarvers C. The Alexithymia Questionnaire for Children – German version (AQC-G); 2022.CrossRef
47.
go back to reference Bernstein DP, Stein JA, Newcomb MD, Walker E, Pogge D, Ahluvalia T, et al. Development and validation of a brief screening version of the Childhood Trauma Questionnaire. Child Abuse Negl. 2003;27(2):169–90.PubMedCrossRef Bernstein DP, Stein JA, Newcomb MD, Walker E, Pogge D, Ahluvalia T, et al. Development and validation of a brief screening version of the Childhood Trauma Questionnaire. Child Abuse Negl. 2003;27(2):169–90.PubMedCrossRef
48.
go back to reference Bader K, Hänny C, Schäfer V, Neuckel A, Kuhl C. Childhood Trauma Questionnaire–psychometrische Eigenschaften einer deutschsprachigen Version. Z Klin Psychol Psychother. 2009;38(4):223–30.CrossRef Bader K, Hänny C, Schäfer V, Neuckel A, Kuhl C. Childhood Trauma Questionnaire–psychometrische Eigenschaften einer deutschsprachigen Version. Z Klin Psychol Psychother. 2009;38(4):223–30.CrossRef
49.
go back to reference Lohaus A, Eschenbeck H, Kohlmann C-W, Klein-Heßling J. SSKJ 3-8. Fragebogen zur Erhebung von Stress und Stressbewältigung im Kindes-und Jugendalter. Göttingen: Hogrefe; 2006. Lohaus A, Eschenbeck H, Kohlmann C-W, Klein-Heßling J. SSKJ 3-8. Fragebogen zur Erhebung von Stress und Stressbewältigung im Kindes-und Jugendalter. Göttingen: Hogrefe; 2006.
50.
go back to reference Schubert T, Friedmann F, Regenbrecht H. The experience of presence: factor analytic insights. Presence. 2001;10(3):266–81.CrossRef Schubert T, Friedmann F, Regenbrecht H. The experience of presence: factor analytic insights. Presence. 2001;10(3):266–81.CrossRef
51.
go back to reference Kim HK, Park J, Choi Y, Choe M. Virtual reality sickness questionnaire (VRSQ): motion sickness measurement index in a virtual reality environment. Appl Ergon. 2018;69:66–73.PubMedCrossRef Kim HK, Park J, Choi Y, Choe M. Virtual reality sickness questionnaire (VRSQ): motion sickness measurement index in a virtual reality environment. Appl Ergon. 2018;69:66–73.PubMedCrossRef
52.
go back to reference R Core Team. R: A language and environment for statistical computing. Vienna: R Foundation for Statistical Computing; 2017. R Core Team. R: A language and environment for statistical computing. Vienna: R Foundation for Statistical Computing; 2017.
53.
go back to reference Pruessner JC, Kirschbaum C, Meinlschmid G, Hellhammer DH. Two formulas for computation of the area under the curve represent measures of total hormone concentration versus time-dependent change. Psychoneuroendocrinology. 2003;28(7):916–31.PubMedCrossRef Pruessner JC, Kirschbaum C, Meinlschmid G, Hellhammer DH. Two formulas for computation of the area under the curve represent measures of total hormone concentration versus time-dependent change. Psychoneuroendocrinology. 2003;28(7):916–31.PubMedCrossRef
54.
go back to reference Benjamini Y, Hochberg Y. Controlling the false discovery rate: a practical and powerful approach to multiple testing. J R Stat Soc Ser B Stat Methodol. 1995;57(1):289–300. Benjamini Y, Hochberg Y. Controlling the false discovery rate: a practical and powerful approach to multiple testing. J R Stat Soc Ser B Stat Methodol. 1995;57(1):289–300.
55.
go back to reference Riis JL, Chen FR, Dent AL, Laurent HK, Bryce CI. Analytical strategies and tactics in salivary bioscience. In: Granger DA, Taylor MK, editors. Salivary Bioscience: Foundations of interdisciplinary saliva research. Heidelberg: Springer Nature; 2020. p. 49–86.CrossRef Riis JL, Chen FR, Dent AL, Laurent HK, Bryce CI. Analytical strategies and tactics in salivary bioscience. In: Granger DA, Taylor MK, editors. Salivary Bioscience: Foundations of interdisciplinary saliva research. Heidelberg: Springer Nature; 2020. p. 49–86.CrossRef
56.
go back to reference Kothgassner OD, Felnhofer A. Lack of research on efficacy of virtual reality exposure therapy (VRET) for anxiety disorders in children and adolescents. Neuropsychiatr. 2021;35:68–75. Kothgassner OD, Felnhofer A. Lack of research on efficacy of virtual reality exposure therapy (VRET) for anxiety disorders in children and adolescents. Neuropsychiatr. 2021;35:68–75.
57.
go back to reference Herten N, Otto T, Wolf OT. The role of eye fixation in memory enhancement under stress–an eye tracking study. Neurobiol Learn Mem. 2017;140:134–44.PubMedCrossRef Herten N, Otto T, Wolf OT. The role of eye fixation in memory enhancement under stress–an eye tracking study. Neurobiol Learn Mem. 2017;140:134–44.PubMedCrossRef
58.
go back to reference Koss KJ, Gunnar MR. Annual research review: early adversity, the hypothalamic-pituitary-adrenocortical axis, and child psychopathology. J Child Psychol Psychiatry. 2018;59(4):327–46.PubMedCrossRef Koss KJ, Gunnar MR. Annual research review: early adversity, the hypothalamic-pituitary-adrenocortical axis, and child psychopathology. J Child Psychol Psychiatry. 2018;59(4):327–46.PubMedCrossRef
59.
go back to reference Miller R, Plessow F, Kirschbaum C, Stalder T. Classification criteria for distinguishing cortisol responders from nonresponders to psychosocial stress: evaluation of salivary cortisol pulse detection in panel designs. Psychosom Med. 2013;75(9):832–40.PubMedCrossRef Miller R, Plessow F, Kirschbaum C, Stalder T. Classification criteria for distinguishing cortisol responders from nonresponders to psychosocial stress: evaluation of salivary cortisol pulse detection in panel designs. Psychosom Med. 2013;75(9):832–40.PubMedCrossRef
Metadata
Title
Psychosocial stress induction in vivo vs. in virtuo and the influence of a health app on the acute stress reaction in youths: a study protocol for a randomized controlled trial
Authors
Daniel Schleicher
Angelika Ecker
Martin Kocur
Irina Jarvers
Colin Nash
Leonie Götz
Alexandra H. Otto
Stephanie Kandsperger
Romuald Brunner
Publication date
01-12-2022
Publisher
BioMed Central
Published in
Trials / Issue 1/2022
Electronic ISSN: 1745-6215
DOI
https://doi.org/10.1186/s13063-022-06758-z

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