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Gatzounis R, Gelissen A, Theuerzeit D, Meulders A. Rewarding Approach Behaviour Attenuates the Return of Pain-Related Avoidance After Successful Extinction with Response Prevention. THE JOURNAL OF PAIN 2024; 25:104453. [PMID: 38145858 DOI: 10.1016/j.jpain.2023.12.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 12/15/2023] [Accepted: 12/19/2023] [Indexed: 12/27/2023]
Abstract
After successful exposure treatment for chronic pain, pain-related fear and avoidance may return, i.e., relapse may occur. This return of fear and avoidance may be modulated by various post-treatment factors. In this study, we aimed to investigate two potential factors that may affect return of fear and avoidance, i.e. cognitive load and rewarding approach behaviour. In an operant pain-related avoidance conditioning paradigm, healthy pain-free volunteers first learned to fear and avoid an arm-reaching movement that was often paired with painful electrocutaneous stimulation (T1), by performing alternative movements that were less often (T2) or never (T3) paired with pain. During extinction with response prevention, participants were only allowed to perform T1, and pain was omitted. To model relapse, two unexpected painful stimuli were presented (i.e., reinstatement manipulation), after which participants could freely choose among the three arm-reaching movements again. During test, the Low Load group performed an additional easy digit task, whereas the High Load group performed a more cognitively demanding digit task. The Reward group performed the demanding digit task, whilst being rewarded to perform T1. Results showed that pain-related fear and avoidance returned, irrespective of cognitive load imposed. When participants were rewarded to approach T1, however, the return of avoidance, but not fear, was attenuated. Our findings suggest that engaging in rewarding activities may facilitate the maintenance of treatment outcomes, and provide additional support to the growing body of literature indicating a divergent relationship between fear and avoidance. PERSPECTIVE: Results of this experiment suggest that engaging in rewarding activities may optimize exposure treatment for chronic pain, by dampening the return of pain-related avoidance - though not of pain-related fear - after extinction.
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Affiliation(s)
- Rena Gatzounis
- Experimental Health Psychology, Department of Clinical Psychological Science, Maastricht University, the Netherlands
| | - Anouk Gelissen
- Experimental Health Psychology, Department of Clinical Psychological Science, Maastricht University, the Netherlands
| | - Daniëlla Theuerzeit
- Experimental Health Psychology, Department of Clinical Psychological Science, Maastricht University, the Netherlands
| | - Ann Meulders
- Experimental Health Psychology, Department of Clinical Psychological Science, Maastricht University, the Netherlands; Health Psychology, Faculty of Psychology and Educational Sciences, KU Leuven, Belgium.
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Opdensteinen KD, Rach H, Gruszka P, Schaan L, Adolph D, Pané-Farré CA, Benke C, Dierolf AM, Schneider S, Hechler T. "The mere imagination scares me"-evidence for fear responses during mental imagery of pain-associated interoceptive sensations in adolescents with chronic pain. Pain 2024; 165:621-634. [PMID: 37703402 DOI: 10.1097/j.pain.0000000000003041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 07/17/2023] [Indexed: 09/15/2023]
Abstract
ABSTRACT According to the bio-informational theory of emotion by Lang, mental imagery of fearful stimuli activates physiological and behavioural response systems, even in the absence of sensory input. We investigated whether instructed mental imagery of pain-associated (not painful) interoceptive sensations entails a threat value and elicits increased startle response, skin conductance level (SCL), and heart rate (HR) indicative of defensive mobilization in adolescents with chronic pain. Additionally, self-reported measures (fear, fear of pain, desire to avoid) were assessed. Adolescents (11-18 years) with chronic headache (CH, n = 46) or chronic abdominal pain (CAP, n = 29) and a control group (n = 28) were asked to imagine individualized pain-associated, neutral and standardized fear scripts. During pain-associated compared with neutral imagery, both pain groups showed higher mean HR, with CH also showing higher HR reactivity, while HR acceleration was not observed within control group. In contrast, during pain-associated compared with neutral imagery, startle response magnitude and SCL remained unchanged in all groups. Additionally, overall levels in self-reports were higher during pain-associated compared with neutral imagery, but significantly more pronounced in the pain groups compared with the control group. Results suggest that the mere imagination of pain-associated sensations elicits specific autonomic fear responses accompanied by increased self-reported fear in adolescents with chronic pain. The specific modulation of heart rate shed new light on our understanding of multimodal fear responses in adolescents with chronic pain and may help to refine paradigms to decrease fear of interoceptive sensations in chronic pain.
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Affiliation(s)
- Kim D Opdensteinen
- Department of Clinical Psychology and Psychotherapy for Children and Adolescents, Trier University, Trier, Germany
| | - Hannah Rach
- Department of Clinical Psychology and Psychotherapy for Children and Adolescents, Trier University, Trier, Germany
| | - Piotr Gruszka
- Department of Clinical Child and Adolescent Psychology, Ruhr University Bochum, Bochum, Germany
| | - Luca Schaan
- Department of Clinical Psychology and Psychotherapy for Children and Adolescents, Trier University, Trier, Germany
| | - Dirk Adolph
- Department of Clinical Child and Adolescent Psychology, Ruhr University Bochum, Bochum, Germany
| | - Christiane A Pané-Farré
- Department of Psychology, Clinical Psychology, Experimental Psychopathology and Psychotherapy, Philipps-Universität Marburg, Marburg, Germany
| | - Christoph Benke
- Department of Psychology, Clinical Psychology, Experimental Psychopathology and Psychotherapy, Philipps-Universität Marburg, Marburg, Germany
| | - Angelika M Dierolf
- Department of Clinical Psychology and Psychotherapy for Children and Adolescents, Trier University, Trier, Germany
| | - Silvia Schneider
- Department of Clinical Child and Adolescent Psychology, Ruhr University Bochum, Bochum, Germany
| | - Tanja Hechler
- Department of Clinical Psychology for Children and Adolescents, University of Münster, Münster, Germany
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3
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Eyüboğlu TF, Lin CP, Kim HC. Reliability of clinical examination methods for postoperative pain after primary root canal treatment. J Dent Sci 2023; 18:1561-1566. [PMID: 37799868 PMCID: PMC10547985 DOI: 10.1016/j.jds.2023.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 02/28/2023] [Indexed: 03/16/2023] Open
Abstract
Background/purpose Clinical test results may have lower reliability due to the varying range of test stimulation or patient subjectiveness. This study aimed to verify a reliable clinical test method by comparing pain intensity levels of a tooth at rest, during function, and after the clinical tests of percussion and chewing. Materials and methods A total of 36 asymptomatic necrotic teeth that required root canal treatment, one in each patient, were included. All treatment procedures were performed in a single visit by an experienced endodontist. Patients were asked to mark their pain levels on a vertical visual analog scale (VAS) while the relevant tooth was at rest and during function 24 h after the treatment. In addition, patients marked their pain levels after the clinical tests of percussion and chewing. Finally, the pain levels were compared using Pearson's correlation for the reliability of the test methods at a significance level of 95%. Results The postoperative pain levels measured during the clinical tests and functions were significantly higher than the pain levels at rest (P < 0.05). The pain levels after percussion tests were significantly higher than that during the function and chewing tests (P < 0.05). Pain intensity during the function was simulated with a higher correlation when using the chewing strip method rather than the percussion method. Conclusion The bite test using the chewing strips as a pain intensity assessment can mimic the actual postoperative pain experience, whereas the percussion test fails to provide the accuracy of this pain experience.
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Affiliation(s)
- Tan Fırat Eyüboğlu
- Department of Endodontics, School of Dentistry, Istanbul Medipol University, Istanbul, Turkey
| | - Chun-Pin Lin
- Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei, Taiwan
- Department of Dentistry, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Hyeon-Cheol Kim
- Department of Conservative Dentistry, School of Dentistry, Dental Research Institute, Dental and Life Science Institute, Pusan National University, Yangsan, South Korea
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Murillo C, Coppieters I, Cagnie B, Bernaers L, Bontinck J, Meeus M, Timmers I. Neural processing of pain-related distress to neck-specific movements in people with chronic whiplash-associated disorders. Pain 2023; 164:1954-1964. [PMID: 36943244 DOI: 10.1097/j.pain.0000000000002890] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 01/23/2023] [Indexed: 03/23/2023]
Abstract
ABSTRACT Pain-related distress contributes to long-term disability in chronic whiplash-associated disorders. Recently, neuroimaging studies have revealed altered neural responses to viewing pictures of movements associated with back pain in key regions for threat and affective processing. In this study, we examined neural correlates of imagining neck-specific movements designed to elicit pain-related distress in individuals with whiplash-associated disorders (n = 63) when compared with that in sex-matched pain-free controls (n = 32). In the scanner, participants were presented with neck-specific movement-related pictures divided into 3 categories (high fear, moderate-fear, and neutral control pictures) and asked to imagine how they would feel if they were performing the movement. Whole-brain analyses revealed greater differential activation (high-fear vs neutral) in individuals with whiplash-associated disorders when compared with that in pain-free controls in 6 clusters including right and left postcentral gyri, left parietal operculum, dorsal precuneus, left superior frontal gyrus/anterior cingulate cortex, and posterior cingulate cortex/ventral precuneus. For the contrast moderate-fear vs neutral, patients showed greater differential activation than controls in the right and left posterolateral cerebellum. Activation patterns in the precuneus and posterior cingulate cortex were negatively associated with pain-related fear, but no other correlations were observed. Together, the findings suggest that when conceptualizing neck-specific movements associated with pain, people with chronic whiplash-associated disorders may predict-and potentially amplify-their sensory and affective consequences and therewith trigger dysfunctional affective and/or behavioral responses. Herewith, we provide new insights into the neural mechanisms underlying chronic pain in people with whiplash-associated disorders, pointing towards a complex interplay between cognitive/affective and sensorimotor circuitry.
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Affiliation(s)
- Carlos Murillo
- Department of Rehabilitation Sciences, Faculty of Health Sciences and Medicine, Ghent University, Ghent, Belgium
- Pain in Motion International Research Group, Antwerp, Belgium
| | - Iris Coppieters
- Department of Rehabilitation Sciences, Faculty of Health Sciences and Medicine, Ghent University, Ghent, Belgium
- Pain in Motion International Research Group, Antwerp, Belgium
- Laboratory for Brain-Gut Axis Studies (LaBGAS), Translational Research in GastroIntestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism, Faculty of Medicine, KU Leuven, Belgium
- Department of Physiotherapy, Human Physiology and Anatomy, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Barbara Cagnie
- Department of Rehabilitation Sciences, Faculty of Health Sciences and Medicine, Ghent University, Ghent, Belgium
| | - Lisa Bernaers
- Department of Rehabilitation Sciences, Faculty of Health Sciences and Medicine, Ghent University, Ghent, Belgium
| | - Jente Bontinck
- Department of Rehabilitation Sciences, Faculty of Health Sciences and Medicine, Ghent University, Ghent, Belgium
- Pain in Motion International Research Group, Antwerp, Belgium
| | - Mira Meeus
- Department of Rehabilitation Sciences, Faculty of Health Sciences and Medicine, Ghent University, Ghent, Belgium
- Pain in Motion International Research Group, Antwerp, Belgium
- MOVANT Research Group, Department of Rehabilitation Sciences and Physiotherapy, Faculty of Health Sciences and Medicine, University of Antwerp, Antwerp, Belgium
| | - Inge Timmers
- Department of Rehabilitation Sciences, Faculty of Health Sciences and Medicine, Ghent University, Ghent, Belgium
- Department of Rehabilitation Medicine, Maastricht University, Maastricht, the Netherlands
- Department of Medical and Clinical Psychology, Tilburg University, Tilburg, Maastricht, the Netherlands
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5
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Hilger K, Häge AS, Zedler C, Jost M, Pauli P. Virtual reality to understand pain-associated approach behaviour: a proof-of-concept study. Sci Rep 2023; 13:13799. [PMID: 37612345 PMCID: PMC10447531 DOI: 10.1038/s41598-023-40789-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 08/16/2023] [Indexed: 08/25/2023] Open
Abstract
Pain-associated approach and avoidance behaviours are critically involved in the development and maintenance of chronic pain. Empirical research suggests a key role of operant learning mechanisms, and first experimental paradigms were developed for their investigation within a controlled laboratory setting. We introduce a new Virtual Reality paradigm to the study of pain-related behaviour and investigate pain experiences on multiple dimensions. The paradigm evaluates the effects of three-tiered heat-pain stimuli applied contingent versus non-contingent with three types of arm movements in naturalistic virtual sceneries. Behaviour, self-reported pain-related fear, pain expectancy and electrodermal activity were assessed in 42 healthy participants during an acquisition phase (contingent movement-pain association) and a modification phase (no contingent movement-pain association). Pain-associated approach behaviour, as measured by arm movements followed by a severe heat stimulus, quickly decreased in-line with the arm movement-pain contingency. Slower effects were observed in fear of movement-related pain and pain expectancy ratings. During the subsequent modification phase, the removal of the pain contingencies modified all three indices. In both phases, skin conductance responses resemble the pattern observed for approach behaviour, while skin conductance levels equal the pattern observed for the self-ratings. Our findings highlight a fast reduction in approach behaviour in the face of acute pain and inform about accompanying psychological and physiological processes. We discuss strength and limitations of our paradigm for future investigations with the ultimate goal of gaining a comprehensive understanding of the mechanisms involved in chronic pain development, maintenance, and its therapy.
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Affiliation(s)
- Kirsten Hilger
- Department of Psychology I, University of Würzburg, Marcusstr. 9-11, 97070, Würzburg, Germany.
| | - Anne-Sophie Häge
- Department of Psychology I, University of Würzburg, Marcusstr. 9-11, 97070, Würzburg, Germany
| | - Christina Zedler
- Department of Psychology I, University of Würzburg, Marcusstr. 9-11, 97070, Würzburg, Germany
| | - Michael Jost
- Department of Psychology I, University of Würzburg, Marcusstr. 9-11, 97070, Würzburg, Germany
| | - Paul Pauli
- Department of Psychology I, University of Würzburg, Marcusstr. 9-11, 97070, Würzburg, Germany
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González Aroca J, Díaz ÁP, Navarrete C, Albarnez L. Fear-Avoidance Beliefs Are Associated with Pain Intensity and Shoulder Disability in Adults with Chronic Shoulder Pain: A Cross-Sectional Study. J Clin Med 2023; 12:jcm12103376. [PMID: 37240482 DOI: 10.3390/jcm12103376] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/17/2023] [Accepted: 02/23/2023] [Indexed: 05/28/2023] Open
Abstract
Shoulder pain is one of the most common musculoskeletal conditions, and for people over 40 years old, it represents the musculoskeletal pain with the greatest impact on quality of life. Psychological factors, such as fear-avoidance beliefs, are associated with musculoskeletal pain, and several studies suggest that they can influence various treatment outcomes. Our objective was to explore the cross-sectional association between fear-avoidance beliefs and shoulder pain intensity and disability in subjects with chronic shoulder pain. A cross-sectional study was conducted, and 208 participants with chronic unilateral subacromial shoulder pain were recruited. The shoulder pain and disability index assessed pain intensity and disability. The Spanish fear-avoidance components scale assessed the presence of fear-avoidance beliefs. The association between fear-avoidance beliefs and pain intensity and disability was analyzed by means of multiple linear regression models and proportional odds models, reporting odds ratios and 95% confidence intervals. Shoulder and pain disability scores were significantly associated with fear-avoidance beliefs (p < 0.0001, adjusted R-square 0.93, multiple linear regression). There was no evidence of an association between sex and age in this study. The regression coefficient for shoulder pain intensity and disability score was 0.67446. The proportional odds model showed an odds ratio of 1.39 (1.29-1.50) for shoulder pain intensity and disability total score. This study suggests that greater levels of fear-avoidance beliefs are associated with greater levels of shoulder pain and disability in adults with chronic shoulder pain.
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Affiliation(s)
| | | | - Carlos Navarrete
- Department of Mathematics, Faculty of Science, University of La Serena, La Serena 1700000, Chile
| | - Loreto Albarnez
- School of Kinesiology, University of La Serena, La Serena 1700000, Chile
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7
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Gatzounis R, Meulders A. Pain and avoidance: The potential benefits of imagining your best possible self. Behav Res Ther 2022; 153:104080. [DOI: 10.1016/j.brat.2022.104080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 03/10/2022] [Accepted: 03/14/2022] [Indexed: 11/02/2022]
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Optimizing Long-term Outcomes of Exposure for Chronic Primary Pain from the Lens of Learning Theory. THE JOURNAL OF PAIN 2021; 22:1315-1327. [PMID: 34029684 DOI: 10.1016/j.jpain.2021.04.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 04/14/2021] [Accepted: 04/23/2021] [Indexed: 01/04/2023]
Abstract
Exposure in vivo is a theory-driven and widely used treatment to tackle functional disability in people with chronic primary pain. Exposure is quite effective; yet, in line with exposure outcomes for anxiety disorders, a number of patients may not profit from it, or relapse. In this focus article, we critically reflect on the current exposure protocols in chronic primary pain, and provide recommendations on how to optimize them. We propose several adaptations that are expected to strengthen inhibitory learning and/or retrieval of the extinction memory, thus likely decreasing relapse. We summarize the limited, but emerging experimental data in the pain domain, and draw parallels with experimental evidence in the anxiety literature. Our reflections and suggestions pertain to the use of the fear hierarchy, reassurance, positive psychology interventions, exposure with a range of stimuli and within different contexts, and the use of safety behaviors during treatment, as well as associating the fear-inducing stimuli with novel outcomes. In addition, we reflect on the importance of specifically tackling (the return of) pain-related avoidance behavior with techniques such as disentangling fear from avoidance and reinforcing approach behaviors. Finally, we discuss challenges in the clinical application of exposure to improve functioning in chronic primary pain and possible avenues for future research. Perspectives: Inspired by recent advances in learning theory and its applications on the treatment of anxiety disorders, we reflect on the delivery of exposure treatment for chronic primary pain and propose strategies to improve its long-term outcomes.
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9
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Conde M, Hendry GJ, Woodburn J, Skelton DA. ´Feet are second class citizens`: exploring the perceptions of Scottish and Portuguese older adults about feet, falls and exercise- a qualitative study. J Foot Ankle Res 2020; 13:66. [PMID: 33176825 PMCID: PMC7659063 DOI: 10.1186/s13047-020-00434-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 10/28/2020] [Indexed: 11/23/2022] Open
Abstract
Introduction Foot problems are likely to contribute to falls risk in older adults. Foot and ankle exercises may be beneficial, but uptake may be influenced by cultural factors. Few studies have explored the views of older adults from different cultural backgrounds about foot-specific falls risk factors, and foot and ankle falls prevention exercises. Objectives To explore the views of Scottish and Portuguese community-dwelling older adults who have experienced a fall, about any foot risk factors for falls, and foot and ankle exercises. Methods Cross-cultural qualitative study with (n = 6) focus groups exploring the perceptions of Scottish (n = 10, mean age 76 yrs) and Portuguese older adults (n = 14, mean age 66 years) aged, applying thematic analysis. Results One main theme `evolving awareness about feet and falls prevention´ and three subthemes; (i) Feet are often forgotten, (ii) the important role of footwear, (iii) need to look at my feet and do the exercises were identified. Scottish participants had more experience of falls prevention but there was a lack of knowledge surrounding foot-specific falls risk factors, and the role of ankle and foot exercise in the prevention of falls. Portuguese participants exhibited a fatalistic approach to falls. Conclusions Older adults from both nations had little knowledge of foot-specific falls risk factors, being initially unaware of the functional status of their feet and of the role of exercise in foot care and falls management. There were differences between national groups that should be accounted for when developing culturally adequate interventions.
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Affiliation(s)
- Monserrat Conde
- School of health and Life Sciences, Glasgow Caledonian University, Govan Mbeki Building, G4 0BA, Glasgow, Scotland, UK.
| | - Gordon J Hendry
- School of health and Life Sciences, Glasgow Caledonian University, Govan Mbeki Building, G4 0BA, Glasgow, Scotland, UK
| | - Jim Woodburn
- School of health and Life Sciences, Glasgow Caledonian University, Govan Mbeki Building, G4 0BA, Glasgow, Scotland, UK
| | - Dawn A Skelton
- School of health and Life Sciences, Glasgow Caledonian University, Govan Mbeki Building, G4 0BA, Glasgow, Scotland, UK
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10
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Meulders A. Fear in the context of pain: Lessons learned from 100 years of fear conditioning research. Behav Res Ther 2020; 131:103635. [DOI: 10.1016/j.brat.2020.103635] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 04/20/2020] [Accepted: 04/24/2020] [Indexed: 02/06/2023]
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11
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Slepian PM, Ankawi B, France CR. Longitudinal Analysis Supports a Fear-Avoidance Model That Incorporates Pain Resilience Alongside Pain Catastrophizing. Ann Behav Med 2019; 54:335-345. [DOI: 10.1093/abm/kaz051] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Abstract
Background
The fear-avoidance model of chronic pain holds that individuals who catastrophize in response to injury are at risk for pain-related fear and avoidance behavior, and ultimately prolonged pain and disability.
Purpose
Based on the hypothesis that the predictive power of the fear-avoidance model would be enhanced by consideration of positive psychological constructs, the present study examined inclusion of pain resilience and self-efficacy in the model.
Methods
Men and women (N = 343) who experienced a recent episode of back pain were recruited in a longitudinal online survey study. Over a 3-month interval, participants repeated the Pain Resilience Scale, Pain Catastrophizing Scale, Tampa Scale of Kinesiophobia, Pain Self-Efficacy Questionnaire, the McGill Pain Questionnaire, and NIH-recommended measures of pain, depressive symptoms, and physical dysfunction. Structural equation modeling assessed the combined contribution of pain resilience and pain catastrophizing to 3-month outcomes through the simultaneous combination of kinesiophobia and self-efficacy.
Results
An expanded fear-avoidance model that incorporated pain resilience and self-efficacy provided a good fit to the data, Χ2 (df = 14, N = 343) = 42.09, p = .0001, RMSEA = 0.076 (90% CI: 0.05, 0.10), CFI = 0.97, SRMR = 0.03, with higher levels of pain resilience associated with improved 3-month outcomes on measures of pain intensity, physical dysfunction, and depression symptoms.
Conclusions
This study supports the notion that the predictive power of the fear-avoidance model of pain is enhanced when individual differences in both pain-related vulnerability (e.g., catastrophizing) and pain-related protective resources (e.g., resilience) are considered.
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Affiliation(s)
| | - Brett Ankawi
- Department of Psychology, Ohio University, Athens, OH, USA
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12
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Placebo analgesia induced by verbal suggestion in the context of experimentally induced fear and anxiety. PLoS One 2019; 14:e0222805. [PMID: 31550290 PMCID: PMC6759192 DOI: 10.1371/journal.pone.0222805] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 09/07/2019] [Indexed: 11/19/2022] Open
Abstract
The role of state anxiety and state fear in placebo effects is still to be determined. We aimed to investigate the effect of fear of movement-related pain (FMRP) and contextual pain related anxiety (CPRA) on the magnitude of placebo analgesia induced by verbal suggestion. Fifty-six female participants completed a modified voluntary joystick movement paradigm (VJMP) where half participated in a predictable pain condition (PC), in which one of the joystick movements is always followed by pain and the other movement is never followed by pain, and half in an unpredictable pain condition (UC), in which pain was delivered unpredictably. By varying the level of pain predictability, FMRP and CPRA were induced in PC and UC respectively. Colour stimuli were presented at the beginning of each trail. Half of the participants were verbally informed that the green or red colour indicated less painful stimuli (experimental groups), the other half did not receive any suggestion (control groups). We measured self-reported pain intensity, expectancy of pain intensity (PC only), pain related fear and anxiety (eyeblink startle response and self-ratings) and avoidance behaviour (movement-onset latency and duration). The results indicate that the placebo effect was successfully induced in both experimental conditions. In the PC, the placebo effect was predicted by expectancy. Despite the fact that FMRP and CPRA were successfully induced, no difference was found in the magnitude of the placebo effect between PC and UC. Concluding, we did not find a divergent effect of fear and anxiety on placebo analgesia.
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Abstract
While the contribution of social processes to pain perception is well documented, surprisingly little is known about the influence of pain on social perception. In particular, an important question is how pain modulates the processing of other people's actions. To address this question, the current study tests, using automatic imitation, the hypothesis that pain interferes with motor simulation-that is, the processing of observed actions in the motor system. Participants in both experiments performed an automatic imitation task requiring them to abduct their index or little finger while they saw someone else performing either a congruent or incongruent action. Automatic imitation was measured in a pain-free context, a context where pain was coupled to the execution of a movement (experiment 1), and a context where pain occurred randomly (experiment 2). The results revealed that automatic imitation, indexed by slower responses on incongruent compared with congruent trials, was reduced when experiencing pain, both when pain was linked to movement execution and when it was not. Thus, the current study shows that pain leads to reduced motor processing of others' behavior and, as such, has important implications for understanding the social difficulties associated with pain.
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Meulders A. From fear of movement-related pain and avoidance to chronic pain disability: a state-of-the-art review. Curr Opin Behav Sci 2019. [DOI: 10.1016/j.cobeha.2018.12.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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15
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Psychological Processes in Chronic Pain: Influences of Reward and Fear Learning as Key Mechanisms – Behavioral Evidence, Neural Circuits, and Maladaptive Changes. Neuroscience 2018; 387:72-84. [DOI: 10.1016/j.neuroscience.2017.08.051] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Revised: 08/22/2017] [Accepted: 08/29/2017] [Indexed: 01/09/2023]
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Neige C, Mavromatis N, Gagné M, Bouyer LJ, Mercier C. Effect of movement-related pain on behaviour and corticospinal excitability changes associated with arm movement preparation. J Physiol 2018; 596:2917-2929. [PMID: 29855037 DOI: 10.1113/jp276011] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Accepted: 04/17/2018] [Indexed: 12/14/2022] Open
Abstract
KEY POINTS Experimental pain or its anticipation influence motor preparation processes as well as upcoming movement execution, but the underlying physiological mechanisms remain unknown. Our results showed that movement-related pain modulates corticospinal excitability during motor preparation. In accordance with the pain adaptation theory, corticospinal excitability was higher when the muscle has an antagonist (vs. an agonist) role for the upcoming movement associated with pain. Anticipation of movement-related pain also affects motor initiation and execution, with slower movement initiation (longer reaction times) and faster movement execution compared to movements that do not evoke pain. These results confirm the implementation of protective strategies during motor preparation known to be relevant for acute pain, but which may potentially have detrimental long-term consequences and lead to the development of chronic pain. ABSTRACT When a movement repeatedly generates pain, we anticipate movement-related pain and establish self-protective strategies during motor preparation, but the underlying mechanisms remains poorly understood. The current study investigated the effect of movement-related pain anticipation on the modulation of behaviour and corticospinal excitability during the preparation of arm movements. Participants completed an instructed-delay reaction-time (RT) task consisting of elbow flexions and extensions instructed by visual cues. Nociceptive laser stimulations (unconditioned stimuli) were applied to the lateral epicondyle during movement execution in a specific direction (CS+) but not in the other (CS-), depending on experimental group. During motor preparation, transcranial magnetic stimulation was used to measure corticospinal excitability in the biceps brachii (BB). RT and peak end-point velocity were also measured. Neurophysiological results revealed an opposite modulation of corticospinal excitability in BB depending on whether it plays an agonist (i.e. flexion) or antagonist (i.e. extension) role for the CS+ movements (P < 0.001). Moreover, behavioural results showed that for the CS+ movements RT did not change relative to baseline, whereas the CS- movements were initiated more quickly (P = 0.023) and the CS+ flexion movements were faster relative to the CS- flexion movements (P < 0.001). This is consistent with the pain adaptation theory which proposes that in order to protect the body from further pain, agonist muscle activity is reduced and antagonist muscle activity is increased. If these strategies are initially relevant and lead to short-term pain alleviation, they may potentially have detrimental long-term consequences and lead to the development of chronic pain.
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Affiliation(s)
- Cécilia Neige
- Center for Interdisciplinary Research in Rehabilitation and Social Integration, Québec, QC, Canada.,Department of Rehabilitation, Laval University, Québec, QC, Canada
| | - Nicolas Mavromatis
- Center for Interdisciplinary Research in Rehabilitation and Social Integration, Québec, QC, Canada.,Department of Rehabilitation, Laval University, Québec, QC, Canada
| | - Martin Gagné
- Center for Interdisciplinary Research in Rehabilitation and Social Integration, Québec, QC, Canada
| | - Laurent J Bouyer
- Center for Interdisciplinary Research in Rehabilitation and Social Integration, Québec, QC, Canada.,Department of Rehabilitation, Laval University, Québec, QC, Canada
| | - Catherine Mercier
- Center for Interdisciplinary Research in Rehabilitation and Social Integration, Québec, QC, Canada.,Department of Rehabilitation, Laval University, Québec, QC, Canada
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Linton SJ, Flink IK, Vlaeyen JWS. Understanding the Etiology of Chronic Pain From a Psychological Perspective. Phys Ther 2018; 98:315-324. [PMID: 29669087 DOI: 10.1093/ptj/pzy027] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Accepted: 02/12/2018] [Indexed: 02/09/2023]
Abstract
The etiology of chronic pain-related disability is not fully understood, particularly from a clinical perspective. Investigations to date have identified risk factors and elucidated some important processes driving the development of persistent pain problems. Yet this knowledge and its application are not always accessible to practicing physical therapists or other clinicians. This article aims to summarize the main psychological processes involved in the development of chronic pain disability and to derive some guidelines for treatment and future research. To this end, the focus is on the paradox of why coping strategies that are helpful in the short term continue to be used even when-ironically-they maintain the problem in the long term. To aid in summarizing current knowledge, 4 tenets that elucidate the etiology of chronic pain are described. These tenets emphasize that chronic pain disability is a developmental process over time, contextual factors set the stage for this development, underlying transdiagnostic psychological factors fuel this development, and the principles of learning steer the development of pain behaviors. With these tenets, an explanation of how a chronic problem develops for one person but not another is provided. Finally, hypotheses that can be empirically tested to guide clinical application as well as basic research are generated. In conclusion, understanding the psychological processes underlying the etiology of chronic pain provides testable ideas and a path forward for improving treatment interventions.
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Affiliation(s)
- Steven J Linton
- Center for Health and Medical Psychology, School of Law, Psychology, and Social Work, Örebro University, 701 82 Örebro, Sweden
| | - Ida K Flink
- Center for Health and Medical Psychology, School of Law, Psychology, and Social Work, Örebro University
| | - Johan W S Vlaeyen
- Health Psychology, Katholieke University of Leuven, Leuven, Belgium; and Department of Clinical Psychological Science, Maastricht University, Maastricht, the Netherlands
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Maeda Y, Kan S, Fujino Y, Shibata M. Verbal Instruction Can Induce Extinction of Fear of Movement-Related Pain. THE JOURNAL OF PAIN 2018; 19:1063-1073. [PMID: 29702257 DOI: 10.1016/j.jpain.2018.03.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 03/06/2018] [Accepted: 03/27/2018] [Indexed: 12/01/2022]
Abstract
The fear avoidance model of chronic musculoskeletal pain highlights the importance of pain-related fear in chronification of pain. Although several interventions have been developed on the basis of this model, the following issues remain unresolved: first, whether movement conditioned to pain can evoke fear responses particularly sympathetic activation, and second, whether verbal instructions can attenuate conditioned fear of movement-related pain as with direct experience. To investigate these issues, we induced proprioceptive conditioning (learning the relationship between proprioceptive sensations and an aversive event) and extinction learning in healthy volunteers, and we compared psychophysiological and subjective indices of fear between an instructed and a normal extinction group. Using paired presentation of painful heat stimuli as an unconditioned stimulus and flexion of the wrist as a conditioned stimulus, all participants acquired the conditioned fear response (skin potential response) to the conditioned stimulus. The instructed extinction group was then told that the movement was no longer followed by painful stimulus at the beginning of the extinction phase, and only this group showed significant decreases on both indices of fear. This finding indicates that verbal instruction can attenuate conditioned fear of movement-related pain, supporting the clinical importance of providing information regarding the relationship between movement and pain. PERSPECTIVE This article presents evidence that, in a laboratory setting, verbal instructions rapidly decrease conditioned fear of movement-related pain on psychophysiological as well as subjective indices. This result indicates that it is important for chronic musculoskeletal pain patients to precisely understand the relationship between movement and pain in clinical situations.
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Affiliation(s)
- Yoshiki Maeda
- Faculty of Health Science, Naragakuen University, Nara, Nara, Japan; Department of Anesthesiology and Intensive Care Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Shigeyuki Kan
- Department of Pain Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.
| | - Yuji Fujino
- Department of Anesthesiology and Intensive Care Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Masahiko Shibata
- Department of Pain Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
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Ng A, Lovibond PF. Intentions matter: Avoidance intentions regulate anxiety via outcome expectancy. Behav Res Ther 2017; 96:57-65. [PMID: 28366433 DOI: 10.1016/j.brat.2017.03.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 02/14/2017] [Accepted: 03/20/2017] [Indexed: 11/15/2022]
Abstract
Intentions prospectively correlate with behaviour (e.g., Ajzen, 1991) but there is little research on whether they play a role in regulating emotion. Two experiments investigated whether avoidance intentions, mediated by expectancy, play a role in reducing anxiety. In Experiment 1, participants performed either an instrumental avoidance response that cancelled the shock signalled by a Pavlovian stimulus; a control response that had no effect on shock; or no response. Prior to this, they indicated their intention to respond or not respond on a form. Both shock expectancy and skin conductance level (SCL) were significantly lower on trials in which an avoidance response was intended compared to not intended, relative to control trials. Experiment 2 replicated these results when intention was retrospectively reported at the end of each trial, arguing against the possibility that the behavioural action of recording intentions in Experiment 1 became directly associated with the shock or no shock outcome. The results indicate that avoidance intentions reduce anxiety through the mediating effect of expectancy, suggesting that avoidance intentions may play an important role in shaping avoidance behaviours for people with anxiety.
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Affiliation(s)
- Anuja Ng
- School of Psychology, University of New South Wales, Australia
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Meulders A, Meulders M, Stouten I, De Bie J, Vlaeyen JW. Extinction of Fear Generalization: A Comparison Between Fibromyalgia Patients and Healthy Control Participants. THE JOURNAL OF PAIN 2017; 18:79-95. [DOI: 10.1016/j.jpain.2016.10.004] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Revised: 09/02/2016] [Accepted: 10/03/2016] [Indexed: 12/31/2022]
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Vlaeyen JW, Morley S, Crombez G. The experimental analysis of the interruptive, interfering, and identity-distorting effects of chronic pain. Behav Res Ther 2016; 86:23-34. [DOI: 10.1016/j.brat.2016.08.016] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Revised: 08/17/2016] [Accepted: 08/22/2016] [Indexed: 02/07/2023]
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22
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Claes N, Crombez G, Meulders A, Vlaeyen JW. Between the Devil and the Deep Blue Sea: Avoidance-Avoidance Competition Increases Pain-Related Fear and Slows Decision-Making. THE JOURNAL OF PAIN 2016; 17:424-35. [DOI: 10.1016/j.jpain.2015.12.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 10/20/2015] [Accepted: 12/10/2015] [Indexed: 02/06/2023]
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den Hollander M, Meulders A, Jakobs M, Vlaeyen JW. The effect of threat information on acquisition, extinction, and reinstatement of experimentally conditioned fear of movement-related pain. PAIN MEDICINE 2015; 16:2302-15. [DOI: 10.1111/pme.12836] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Revised: 05/14/2015] [Accepted: 05/18/2015] [Indexed: 11/28/2022]
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A Functional Magnetic Resonance Imaging Study to Investigate the Utility of a Picture Imagination Task in Investigating Neural Responses in Patients with Chronic Musculoskeletal Pain to Daily Physical Activity Photographs. PLoS One 2015; 10:e0141133. [PMID: 26496709 PMCID: PMC4619796 DOI: 10.1371/journal.pone.0141133] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Accepted: 10/05/2015] [Indexed: 12/19/2022] Open
Abstract
Pain-related anxiety and fear are associated with increased difficulties in attention, increased awareness of pain, impaired disengagement from pain, and can moderate the effects of attentional coping attempts. Accurately assessing the direct impact of pain-related anxiety and fear on pain behavior has proved difficult. Studies have demonstrated no or limited influence of pain-related fear and anxiety on behavior but this may be due to inherent problems with the scales used. Neuroimaging has improved the understanding of neural processes underlying the factors that influence pain perception. This study aimed to establish if a Picture and Imagination Task (PIT), largely developed from the Photographs of Daily Activity (PHODA) assessment tool, could help explore how people living with chronic pain process information about daily activities. Blood oxygenation level dependent (BOLD) functional magnetic resonance imaging (fMRI) was used to compare brain responses in patients with chronic musculoskeletal pain (CMSKP) (n = 15) and healthy controls (n = 15). Subjects were asked to imagine how they would feel mentally and physically if asked to perform daily activities illustrated in PIT. The results found that a number of regions involved in pain processing saw increased BOLD activation in patients compared with controls when undertaking the task and included the insula, anterior cingulate cortex, thalamus and inferior and superior parietal cortices. Similarly, increased BOLD responses in patients compared to controls in the frontal pole, paracingulate and the supplementary motor cortex may be suggestive of a memory component to the responses The amygdala, orbitofrontal cortex, substantia nigra/ventral tegmentum, putamen, thalamus, pallidum, inferior parietal (supramarginal and angular gyrus) and cingulate cortex were also seen to have greater differences in BOLD signal changes in patients compared with controls and many of these regions are also associated with general phobic responses. Therefore, we suggest that PIT is a useful task to explore pain- and movement-related anxiety and fear in fMRI studies. Regions in the Default Mode Network remained active or were less deactivated during the PIT task in patients with CMSKP compared to healthy controls supporting the contention that the DMN is abnormal in patients with CMSKP.
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Meulders A, Harvie DS, Lorimer Moseley G, Vlaeyen JWS. Generalization of Pain-Related Fear Using a Left-Right Hand Judgment Conditioning Task. Behav Ther 2015; 46:699-716. [PMID: 26459849 DOI: 10.1016/j.beth.2015.02.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Revised: 01/19/2015] [Accepted: 02/24/2015] [Indexed: 10/23/2022]
Abstract
Recent research suggests that the mere intention to perform a painful movement can elicit pain-related fear. Based on these findings, the present study aimed to determine whether imagining a movement that is associated with pain (CS+) can start to elicit conditioned pain-related fear as well and whether pain-related fear elicited by imagining a painful movement can spread towards novel, similar but distinct imagined movements. We proposed a new experimental paradigm that integrates the left-right hand judgment task (HJT) with a differential fear conditioning procedure. During Acquisition, one hand posture (CS+) was consistently followed by a painful electrocutaneous stimulus (pain-US) and another hand posture (CS-) was not. Participants were instructed to make left-right judgments, which involve mentally rotating their own hand to match the displayed hand postures (i.e., motor imagery). During Generalization, participants were presented with a series of novel hand postures with six grades of perceptual similarity to the CS+ (generalization stimuli; GSs). Finally, during Extinction, the CS+ hand posture was no longer reinforced. The results showed that (1) a painful hand posture triggers fear and increased US-expectancy as compared to a nonpainful hand posture, (2) this pain-related fear spreads to similar but distinct hand postures following a generalization gradient, and subsequently, (3) it can be successfully reduced during extinction. These effects were apparent in the verbal ratings, but not in the startle measures. Because of the lack of effect in the startle measures, we cannot draw firm conclusions about whether the "imagined movements" (i.e., motor imagery of the hand postures) gained associative strength rather than the hand posture pictures itself. From a clinical perspective, basic research into generalization of pain-related fear triggered by covert CSs such as intentions, imagined movements and movement-related cognitions might further our understanding of how pain and fear avoidance spread and persevere.
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Khatibi A, Schrooten M, Bosmans K, Volders S, Vlaeyen JWS, Van den Bussche E. Sub-optimal presentation of painful facial expressions enhances readiness for action and pain perception following electrocutaneous stimulation. Front Psychol 2015. [PMID: 26217260 PMCID: PMC4493322 DOI: 10.3389/fpsyg.2015.00913] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Observation of others’ painful facial expressions has been shown to facilitate behavioral response tendencies and to increase pain perception in the observer. However, in previous studies, expressions were clearly visible to the observer and none of those studies investigated the effect of presence of peripheral stimulation on response tendencies. This study focuses on the effect of sub-optimal presentation of painful facial expressions in the presence and absence of an electrocutaneous stimulus. Twenty-two healthy individuals categorized arrow targets which were preceded by a sub-optimally presented facial expression (painful, happy, or neutral in different blocks). On half of the trials, aversive electrocutaneous stimulation was delivered to the wrist of the non-dominant hand between the presentation of facial expression and target (an arrow directing to right or left). Participants’ task was to indicate direction of the arrow as soon as it appears on the screen by pressing the corresponding key on the keyboard and to rate their pain at the end of block. Analysis showed that responses were faster to targets preceded by aversive stimulation than to targets not preceded by stimulation, especially following painful expressions. Painfulness ratings were higher following painful expressions than following happy expressions. These findings suggest that sub-optimally presented painful expressions can enhance readiness to act to neutral, non-pain-related targets after aversive stimulation and can increase pain perception.
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Affiliation(s)
- Ali Khatibi
- Research Group on Health Psychology, Katholieke Universiteit Leuven Leuven, Belgium ; Laboratory of Research on Neuropsychology of Pain, University of Montreal Montréal, QC, Canada
| | - Martien Schrooten
- Research Group on Health Psychology, Katholieke Universiteit Leuven Leuven, Belgium ; Center for Health and Medical Psychology, Örebro University Örebro, Sweden
| | - Katrien Bosmans
- Department of Psychology, Vrije Universiteit Brussel Brussels, Belgium
| | - Stephanie Volders
- Research Group on Health Psychology, Katholieke Universiteit Leuven Leuven, Belgium
| | - Johan W S Vlaeyen
- Research Group on Health Psychology, Katholieke Universiteit Leuven Leuven, Belgium ; Department of Clinical Psychological Science, Maastricht University Maastricht, Netherlands
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Karos K, Meulders A, Vlaeyen JW. Threatening Social Context Facilitates Pain-Related Fear Learning. THE JOURNAL OF PAIN 2015; 16:214-25. [DOI: 10.1016/j.jpain.2014.11.014] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Revised: 11/17/2014] [Accepted: 11/22/2014] [Indexed: 12/14/2022]
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Learning pain-related fear: Neural mechanisms mediating rapid differential conditioning, extinction and reinstatement processes in human visceral pain. Neurobiol Learn Mem 2014; 116:36-45. [DOI: 10.1016/j.nlm.2014.08.003] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Revised: 07/14/2014] [Accepted: 08/06/2014] [Indexed: 01/20/2023]
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Claes N, Karos K, Meulders A, Crombez G, Vlaeyen JW. Competing Goals Attenuate Avoidance Behavior in the Context of Pain. THE JOURNAL OF PAIN 2014; 15:1120-1129. [DOI: 10.1016/j.jpain.2014.08.003] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Revised: 07/17/2014] [Accepted: 08/06/2014] [Indexed: 01/12/2023]
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Van Damme S, Van Hulle L, Danneels L, Spence C, Crombez G. The effect of chronic low back pain on tactile suppression during back movements. Hum Mov Sci 2014; 37:87-100. [DOI: 10.1016/j.humov.2014.06.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2013] [Revised: 06/26/2014] [Accepted: 06/29/2014] [Indexed: 11/16/2022]
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Meulders A, Meulders M, Vlaeyen JW. Positive Affect Protects Against Deficient Safety Learning During Extinction of Fear of Movement-Related Pain in Healthy Individuals Scoring Relatively High on Trait Anxiety. THE JOURNAL OF PAIN 2014; 15:632-44. [DOI: 10.1016/j.jpain.2014.02.009] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Revised: 02/24/2014] [Accepted: 02/27/2014] [Indexed: 11/26/2022]
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Benson S, Kattoor J, Kullmann JS, Hofmann S, Engler H, Forsting M, Gizewski ER, Elsenbruch S. Towards understanding sex differences in visceral pain: Enhanced reactivation of classically-conditioned fear in healthy women. Neurobiol Learn Mem 2014; 109:113-21. [DOI: 10.1016/j.nlm.2013.12.014] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Revised: 12/19/2013] [Accepted: 12/27/2013] [Indexed: 01/03/2023]
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Willcocks AL. Utilizing an observational learning paradigm to examine associative changes in pain-related fear. THE JOURNAL OF PAIN 2014; 15:218-219. [PMID: 24485323 DOI: 10.1016/j.jpain.2013.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Revised: 10/02/2013] [Accepted: 10/16/2013] [Indexed: 06/03/2023]
Affiliation(s)
- Andrea L Willcocks
- Pain Management Department, Prince of Wales Hospital, Sydney, Australia.
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Meulders A, Vandebroek N, Vervliet B, Vlaeyen JWS. Generalization gradients in cued and contextual pain-related fear: an experimental study in healthy participants. Front Hum Neurosci 2013; 7:345. [PMID: 23847513 PMCID: PMC3701862 DOI: 10.3389/fnhum.2013.00345] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Accepted: 06/17/2013] [Indexed: 12/27/2022] Open
Abstract
Increasing evidence supports the notion that pain-related fear plays a key role in the transition from acute to chronic pain. Recent experimental data show that associative learning processes are involved in the acquisition of pain-related fear. An intriguing yet underinvestigated question entails how spreading of pain-related fear in chronic pain occurs. In a voluntary movement paradigm in which one arm movement (CS+) was followed by a painful stimulus and another was not (CS−) in the predictable group and painful stimuli were delivered during the intertrial interval (context alone) in the unpredictable group, we tested generalization of fear to six novel generalization movements (GSs) with varying levels of similarity between the original CS+ movement and CS− movement. Healthy participants (N = 58) were randomly assigned to the predictable or unpredictable group. Fear was measured via verbal ratings and eyeblink startle responses. Results indicated that cued pain-related fear spreads selectively to novel movements that are proprioceptively more similar to the CS+ than to those similar to the CS− in the predictable group, but not in the unpredictable group. This is the first study to demonstrate a generalization gradient of cued pain-related fear. However, this effect was only present in the startle eyeblink responses, but not in the verbal ratings. Taken together, this paradigm represents a novel tool to scrutinize the largely understudied phenomenon of the spreading of fear and avoidance in patients with chronic musculoskeletal pain and mapping possible pathological differences in generalization gradients and the spreading of pain in patients as compared with healthy controls.
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Affiliation(s)
- Ann Meulders
- Department of Psychology, University of Leuven , Leuven , Belgium
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