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dc.contributor.supervisorRoser, Matthew
dc.contributor.authorKharko, Anna
dc.contributor.otherFaculty of Health: Medicine, Dentistry and Human Sciencesen_US
dc.date.accessioned2021-08-19T15:23:23Z
dc.date.issued2021
dc.identifier10399556en_US
dc.identifier.urihttp://hdl.handle.net/10026.1/17616
dc.description.abstract

Understanding pain is integral to understanding fibromyalgia, a chronic musculoskeletal pain condition of undetermined aetiology, and for which no single successful medical therapy exists. Most of what is known about fibromyalgia pain comes from psychophysical research of central sensitisation, a phenomenon of abnormally amplified pain following disruptions in the central nervous system. Anxiety has been long theorised to mediate this centralised pain, but its contribution is yet to be characterised.

This thesis presents a multimodal investigation of pain perception under different manifestations of anxiety in both fibromyalgia-diagnosed and pain-free cohorts.

Chapter 3 presented the findings from the first study in the series of PhD research, in which a novel method for gathering pain ratings was tested. Continuous pain report allowed for the extraction of novel measures, which characterised the unique properties of pain processing in fibromyalgia.

Chapter 4 described a study with pain-free participants, in which, for the first time, continuous pain ratings were combined with concurrent modulation and report of experimentally maintained acute anxiety. Results indicated that anxiety evoked through the 7.5% CO2 Model is associated with an overall decrease of reported pain but not with individual measures, extracted from the pain response.

Chapter 5 further adopted the successful pain and anxiety experimental paradigm and tested its feasibility with fibromyalgia-diagnosed participants. The limited success of the study discouraged further use of the CO2 Model with that patient population but highlighted the significance of anxiety for that condition.

The final chapter, Chapter 6, explored the role of anxiety under a different taxonomy, as sustained psychological distress evoked by the COVID-19 pandemic. In an observational study, it was revealed that fluctuations in sustained anxiety are mirrored by changes in reported pain intensity.

Together, the findings support that the study of anxiety advances the understanding of fibromyalgia pain processing, and argue for the continued research of both their momentary and long-term interaction for the comprehensive understanding of their relationship.

en_US
dc.language.isoen
dc.publisherUniversity of Plymouth
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/us/*
dc.subjectfibromyalgiaen_US
dc.subjectacute painen_US
dc.subjectchronic painen_US
dc.subjectacute anxietyen_US
dc.subject7.5% CO2en_US
dc.subjectsustained anxietyen_US
dc.subjectCOVID-19en_US
dc.subject.classificationPhDen_US
dc.titleThe Psychology of Anxiety & Pain in Fibromyalgiaen_US
dc.typeThesis
plymouth.versionpublishableen_US
dc.rights.embargodate2022-08-19T15:23:23Z
dc.rights.embargoperiod12 monthsen_US
dc.type.qualificationDoctorateen_US
rioxxterms.versionNA
plymouth.orcid_id0000-0003-0908-6173en_US


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