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Curiel-Regueros A, Fernández-Lucas J, Clemente-Suárez VJ. Psychophysiological Stress Status of Soldiers Prior to an Operative Deployment. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph192013637. [PMID: 36294217 PMCID: PMC9603038 DOI: 10.3390/ijerph192013637] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/17/2022] [Accepted: 10/18/2022] [Indexed: 05/27/2023]
Abstract
An anticipatory stress response develops before an internal or external stimulus, which initiates a homeostasis process through a chain of responses that enable human organisms to face different threats, thus allowing them to adapt to a continuous and eliciting environment. In the current research, we analyzed the psychophysiological anticipatory anxiety response of professional soldiers prior to a real mission in an actual theater of operation. Autonomic modulation through the heart rate variability values, muscular strength manifestation, and psychological stress of 53 military personnel of Army Airmobile Forces (age: M = 35.4 years, SD = 5.88 years; height: M = 1.75 m, SD = 6.87 cm; body mass: M = 77.33 kg, SD = 11.95 kg; military duty = 14.44 years, SD = 6.43; military operation experience = 4 months, SD = 4.25 months) and a control group of 33 civil participants were analyzed. The military personnel presented significant differences in some HRV values related to the activation of sympathetic systems. We found that the military personnel presented an anticipatory anxiety response only at an autonomic level, showing an increased sympathetic modulation, but not at a psychological level, since their anxiety levels were not significantly different than those of the control civilians. In addition, this anticipatory anxiety response did not affect muscular strength manifestation, as it presented no significant differences between the military personnel and the control group.
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Affiliation(s)
- Agustín Curiel-Regueros
- Faculty of Sport Science, Universidad Europea de Madrid, Tajo, s/n, 28670 Villaviciosa de Odón, Spain
| | - Jesús Fernández-Lucas
- Applied Biotechnology Group, Universidad Europea de Madrid, Urbanización El Bosque, Calle Tajo, s/n, 28670 Villaviciosa de Odón, Spain
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Laing PAF, Harrison BJ. Safety learning and the Pavlovian conditioned inhibition of fear in humans: Current state and future directions. Neurosci Biobehav Rev 2021; 127:659-674. [PMID: 34023357 DOI: 10.1016/j.neubiorev.2021.05.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Revised: 05/07/2021] [Accepted: 05/17/2021] [Indexed: 01/02/2023]
Abstract
Safety learning occurs when an otherwise neutral stimulus comes to signal the absence of threat, allowing organisms to use safety information to inhibit fear and anxiety in nonthreatening environments. Although it continues to emerge as a topic of relevance in biological and clinical psychology, safety learning remains inconsistently defined and under-researched. Here, we analyse the Pavlovian conditioned inhibition paradigm and its application to the study of safety learning in humans. We discuss existing studies; address outstanding theoretical considerations; and identify prospects for its further application. Though Pavlovian conditioned inhibition presents a theoretically sound model of safety learning, it has been investigated infrequently, with decade-long interims between some studies, and notable methodological variability. Consequently, we argue that the full potential of conditioned inhibition as a model for human safety learning remains untapped, and propose that it could be revisited as a framework for addressing timely questions in the behavioural and clinical sciences.
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Affiliation(s)
- Patrick A F Laing
- Melbourne Neuropsychiatry Centre, Department of Psychiatry, The University of Melbourne, Victoria, Australia.
| | - Ben J Harrison
- Melbourne Neuropsychiatry Centre, Department of Psychiatry, The University of Melbourne, Victoria, Australia.
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Lonsdorf TB, Menz MM, Andreatta M, Fullana MA, Golkar A, Haaker J, Heitland I, Hermann A, Kuhn M, Kruse O, Meir Drexler S, Meulders A, Nees F, Pittig A, Richter J, Römer S, Shiban Y, Schmitz A, Straube B, Vervliet B, Wendt J, Baas JMP, Merz CJ. Don't fear 'fear conditioning': Methodological considerations for the design and analysis of studies on human fear acquisition, extinction, and return of fear. Neurosci Biobehav Rev 2017; 77:247-285. [PMID: 28263758 DOI: 10.1016/j.neubiorev.2017.02.026] [Citation(s) in RCA: 458] [Impact Index Per Article: 65.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 02/23/2017] [Accepted: 02/28/2017] [Indexed: 12/24/2022]
Abstract
The so-called 'replicability crisis' has sparked methodological discussions in many areas of science in general, and in psychology in particular. This has led to recent endeavours to promote the transparency, rigour, and ultimately, replicability of research. Originating from this zeitgeist, the challenge to discuss critical issues on terminology, design, methods, and analysis considerations in fear conditioning research is taken up by this work, which involved representatives from fourteen of the major human fear conditioning laboratories in Europe. This compendium is intended to provide a basis for the development of a common procedural and terminology framework for the field of human fear conditioning. Whenever possible, we give general recommendations. When this is not feasible, we provide evidence-based guidance for methodological decisions on study design, outcome measures, and analyses. Importantly, this work is also intended to raise awareness and initiate discussions on crucial questions with respect to data collection, processing, statistical analyses, the impact of subtle procedural changes, and data reporting specifically tailored to the research on fear conditioning.
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Affiliation(s)
- Tina B Lonsdorf
- University Medical Center Hamburg-Eppendorf, Department of Systems Neuroscience, Hamburg, Germany.
| | - Mareike M Menz
- University Medical Center Hamburg-Eppendorf, Department of Systems Neuroscience, Hamburg, Germany
| | - Marta Andreatta
- University of Würzburg, Department of Psychology, Biological Psychology, Clinical Psychology and Psychotherapy, Würzburg, Germany
| | - Miguel A Fullana
- Anxiety Unit, Institute of Neuropsychiatry and Addictions, Hospital del Mar, CIBERSAM, Barcelona, Spain; IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain; Department of Psychiatry, Autonomous University of Barcelona, Barcelona, Spain
| | - Armita Golkar
- Karolinska Institutet, Department of Clinical Neuroscience, Psychology Section, Stockholm, Sweden; University of Amsterdam, Department of Clinical Psychology, Amsterdam, Netherlands
| | - Jan Haaker
- University Medical Center Hamburg-Eppendorf, Department of Systems Neuroscience, Hamburg, Germany; Karolinska Institutet, Department of Clinical Neuroscience, Psychology Section, Stockholm, Sweden
| | - Ivo Heitland
- Utrecht University, Department of Experimental Psychology and Helmholtz Institute, Utrecht, The Netherlands
| | - Andrea Hermann
- Justus Liebig University Giessen, Department of Psychology, Psychotherapy and Systems Neuroscience, Giessen, Germany
| | - Manuel Kuhn
- University Medical Center Hamburg-Eppendorf, Department of Systems Neuroscience, Hamburg, Germany
| | - Onno Kruse
- Justus Liebig University Giessen, Department of Psychology, Psychotherapy and Systems Neuroscience, Giessen, Germany
| | - Shira Meir Drexler
- Ruhr-University Bochum, Institute of Cognitive Neuroscience, Department of Cognitive Psychology, Bochum, Germany
| | - Ann Meulders
- KU Leuven, Health Psychology, Leuven, Belgium; Maastricht University, Research Group Behavioral Medicine, Maastricht, The Netherlands
| | - Frauke Nees
- Heidelberg University, Medical Faculty Mannheim, Central Institute of Mental Health, Department of Cognitive and Clinical Neuroscience, Mannheim, Germany
| | - Andre Pittig
- Technische Universität Dresden, Institute of Clinical Psychology and Psychotherapy, Dresden, Germany
| | - Jan Richter
- University of Greifswald, Department of Physiological and Clinical Psychology/Psychotherapy, Greifswald, Germany
| | - Sonja Römer
- Saarland University, Department of Clinical Psychology and Psychotherapy, Saarbrücken, Germany
| | - Youssef Shiban
- University of Regensburg, Department of Psychology, Clinical Psychology and Psychotherapy, Regensburg, Germany
| | - Anja Schmitz
- University of Regensburg, Department of Psychology, Clinical Psychology and Psychotherapy, Regensburg, Germany
| | - Benjamin Straube
- Philipps-University Marburg, Department of Psychiatry and Psychotherapy, Marburg, Germany
| | - Bram Vervliet
- KU Leuven, Centre for the Psychology of Learning and Experimental Psychopathology, Leuven, Belgium; Center for Excellence on Generalization, University of Leuven, Leuven, Belgium; Department of Psychiatry, Harvard Medical School, Boston, MA, USA; Department of Psychiatry, Massachusetts General Hospital, Boston, MA, USA
| | - Julia Wendt
- University of Greifswald, Department of Physiological and Clinical Psychology/Psychotherapy, Greifswald, Germany
| | - Johanna M P Baas
- Utrecht University, Department of Experimental Psychology and Helmholtz Institute, Utrecht, The Netherlands
| | - Christian J Merz
- Ruhr-University Bochum, Institute of Cognitive Neuroscience, Department of Cognitive Psychology, Bochum, Germany
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Mandrick K, Peysakhovich V, Rémy F, Lepron E, Causse M. Neural and psychophysiological correlates of human performance under stress and high mental workload. Biol Psychol 2016; 121:62-73. [PMID: 27725244 DOI: 10.1016/j.biopsycho.2016.10.002] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Revised: 09/12/2016] [Accepted: 10/06/2016] [Indexed: 12/21/2022]
Abstract
In our anxiogenic and stressful world, the maintenance of an optimal cognitive performance is a constant challenge. It is particularly true in complex working environments (e.g. flight deck, air traffic control tower), where individuals have sometimes to cope with a high mental workload and stressful situations. Several models (i.e. processing efficiency theory, cognitive-energetical framework) have attempted to provide a conceptual basis on how human performance is modulated by high workload and stress/anxiety. These models predict that stress can reduce human cognitive efficiency, even in the absence of a visible impact on the task performance. Performance may be protected under stress thanks to compensatory effort, but only at the expense of a cognitive cost. Yet, the psychophysiological cost of this regulation remains unclear. We designed two experiments involving pupil diameter, cardiovascular and prefrontal oxygenation measurements. Participants performed the Toulouse N-back Task that intensively engaged both working memory and mental calculation processes under the threat (or not) of unpredictable aversive sounds. The results revealed that higher task difficulty (higher n level) degraded the performance and induced an increased tonic pupil diameter, heart rate and activity in the lateral prefrontal cortex, and a decreased phasic pupil response and heart rate variability. Importantly, the condition of stress did not impact the performance, but at the expense of a psychophysiological cost as demonstrated by lower phasic pupil response, and greater heart rate and prefrontal activity. Prefrontal cortex seems to be a central region for mitigating the influence of stress because it subserves crucial functions (e.g. inhibition, working memory) that can promote the engagement of coping strategies. Overall, findings confirmed the psychophysiological cost of both mental effort and stress. Stress likely triggered increased motivation and the recruitment of additional cognitive resources that minimize its aversive effects on task performance (effectiveness), but these compensatory efforts consumed resources that caused a loss of cognitive efficiency (ratio between performance effectiveness and mental effort).
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Affiliation(s)
- Kevin Mandrick
- ISAE (Institut Supérieur de l'Aéronautique et de l'Espace), Toulouse, France
| | | | - Florence Rémy
- Centre de recherche Cerveau et Cognition, Université de Toulouse UPS and CNRS, Toulouse, France
| | - Evelyne Lepron
- Centre de recherche Cerveau et Cognition, Université de Toulouse UPS and CNRS, Toulouse, France
| | - Mickaël Causse
- ISAE (Institut Supérieur de l'Aéronautique et de l'Espace), Toulouse, France.
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Abstract
This study examines the relationship between psychophysiological arousal, cognitive anxiety, and personality traits in young taekwondo athletes. A total of 20 male and 10 female taekwondo athletes (mean age = 18.6 years; ± 1.8) volunteered for the study. The Five Factor Personality Inventory and the state scale of the Spielberger State-Trait Anxiety Inventory (STAI) were used to measure personality and cognitive state anxiety. Electrodermal activity (EDA) was measured twice, one day and approximately one hour prior to the competition, to determine psychophysiological arousal. Descriptive statistics, Pearson product-moment correlations, and stepwise regression were used to analyze the data. Several “Big Five” facets were related to the EDA delta scores that were measured both one day and one hour before the competition. Two stepwise regressions were conducted to examine whether personality traits could significantly predict both EDA delta scores. The final model, containing only neuroticism from the Big Five factors, can significantly explain the variations in the EDA delta scores measured one day before the competition. Agreeableness can significantly explain variations in the EDA delta scores measured one hour before the competition. No relationship was found between cognitive anxiety and the EDA delta scores measured one hour before the competition. In conclusion, personality traits, especially agreeableness and neuroticism, might be useful in understanding arousal responses to competition.
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Barrett J, Armony JL. Influence of trait anxiety on brain activity during the acquisition and extinction of aversive conditioning. Psychol Med 2009; 39:255-265. [PMID: 18466667 DOI: 10.1017/s0033291708003516] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND We examined how individual differences in trait anxiety (TA) influence the neural responses associated with the acquisition and extinction of anticipatory anxiety elicited through a context conditioning paradigm, with particular focus on the amygdala and the subgenual anterior cingulate cortex (sgACC). METHOD During two sessions of echo-planar functional magnetic resonance imaging (fMRI), 18 healthy volunteers completed a decision-making task with two randomly alternating 28-s to 32-s background screen colour blocks. One of the colours was associated with the presentation of an aversive noise (CTX+) and the other colour was 'safe' (CTX-). In the first session (Acquisition), 33% of CTX+ colour blocks were paired with noise and in the second session (Extinction) no noise was presented. RESULTS The amygdala displayed an increased response to CTX+ compared to CTX- colour blocks during the Acquisition and Extinction sessions and the ACC displayed an increased response to CTX+ compared to CTX- colour blocks during Extinction only. In addition, a greater conditioned response (CTX+ minus CTX-) was observed in the ACC when comparing the Extinction and Acquisition sessions. Correlation analyses further showed that higher levels of TA were associated with a higher conditioned response in the amygdala during Extinction as well as a greater differential conditioned response (i.e. Extinction>Acquisition) in the ACC. CONCLUSIONS Our results support the idea that individuals with high levels of anxiety-relevant traits and vulnerable to developing an anxiety disorder display a more resilient anxiety response during extinction that is characterized by hyper-responsivity in the amygdala.
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Affiliation(s)
- J Barrett
- Douglas Mental Health University Institute, McGill University, Montreal, Quebec, Canada
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Herwig U, Kaffenberger T, Baumgartner T, Jäncke L. Neural correlates of a ‘pessimistic’ attitude when anticipating events of unknown emotional valence. Neuroimage 2007; 34:848-58. [PMID: 17112750 DOI: 10.1016/j.neuroimage.2006.09.035] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2006] [Revised: 09/27/2006] [Accepted: 09/28/2006] [Indexed: 11/30/2022] Open
Abstract
Since we do not know what future holds for us, we prepare for expected emotional events in order to deal with a pleasant or threatening environment. From an evolutionary perspective, it makes sense to be particularly prepared for the worst-case scenario. We were interested to evaluate whether this assumption is reflected in the central nervous information processing associated with expecting visual stimuli of unknown emotional valence. While being scanned with functional magnetic resonance imaging, healthy subjects were cued to expect and then perceive visual stimuli with a known emotional valence as pleasant, unpleasant, and neutral, as well as stimuli of unknown valence that could have been either pleasant or unpleasant. While anticipating pictures of unknown valence, the activity of emotion processing brain areas was similar to activity associated with expecting unpleasant pictures, but there were no areas in which the activity was similar to the activity when expecting pleasant pictures. The activity of the revealed regions, including bilateral insula, right inferior frontal gyrus, medial thalamus, and red nucleus, further correlated with the individual ratings of mood: the worse the mood, the higher the activity. These areas are supposedly involved in a network for internal adaptation and preparation processes in order to act according to potential or certain unpleasant events. Their activity appears to reflect a 'pessimistic' bias by anticipating the events of unknown valence to be unpleasant.
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Affiliation(s)
- Uwe Herwig
- Psychiatric University Hospital Zürich, Department of Neuropsychology, Switzerland.
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