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https://livrepository.liverpool.ac.uk/3100418/1/201310670_June2020.pdf
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.815650
https://livrepository.liverpool.ac.uk/3100418/1/201310670_June2020.pdf
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.815650
Title: Chronic Fatigue Syndrome : the roles of perfectionism and metacognition in co-morbid depression and anxiety
Author: Wright, Amelia
Awarding Body: University of Liverpool
Current Institution: University of Liverpool
Date of Award: 2020
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https://doi.org/10.17638/03100418
Abstract:
This thesis aims to increase clinical understanding of depression and anxiety in people living with Chronic Fatigue Syndrome/Myalgic Encephalomyelitis (CFS/ME), a disabling longterm condition for which there is currently no known cure.
Two clinical papers are presented. Each examines potentially relevant psychological mechanisms.
Due to the lack of effective medical treatments for CFS/ME, clinical focus is presently the management of physical symptoms, primarily with a view to reducing levels of fatigue (White et al., 2011).
At a research level, there has been greater examination of factors associated with fatigue, with associated depression and anxiety being under-researched.
This is despite the high levels of reported co-morbidity (Larkin & Martin, 2017), and evidence for the dynamic interplay between mental and physical health (Kiecolt-Glaser et al., 2002)
The role of psychology in supporting people with CFS/ME is mired in controversy.
Examination of co-morbid mental health difficulties in CFS/ME has been hampered by symptomatic overlap with depression (Griffith & Zarrouf, 2008), methodological concerns regarding previous psychological research and treatment (Laws, 2017; Vink & Vink-Niese, 2019) and concerns raised by patient activist groups (Kelland, 2019).
On the one hand, critics caution of the 'psychologisation of physical illness' (Gaudsmit & Gadd, 1991; Richman & Jason, 2001); on the other, the rejection of psychology as a relevant discipline risks neglecting the research and treatment of co-morbid mental health difficulties.
Greater understanding of associated psychological factors could inform the development of evidence based, CFS/ME specific therapeutic interventions, aimed at reducing co-morbid depression and anxiety.
Such targeted interventions would complement a multi-disciplinary approach to CFS/ME and would not seek to refute potentially underlying organic pathology.
Potentially predisposing personality traits has been one controversial area of research into CFS/ME.
Perfectionism has attracted attention (Kempke et al., 2015), driven in part by clinical observations (Surawy et al., 1995) and arguably stereotyping (Deary & Chalder, 2008).
However, this may remain a valid area of research with regards to co-morbid depression and anxiety; perfectionism has been found to be a trans-diagnostic risk factor for a range of both physical and mental health conditions (Egan, Wade, Shafran, 2011), and higher levels of perfectionism have been evidenced in people living with CFS/ME (White & Schweitzer, 2000).
It is therefore clinically important to consider the potential relationship between perfectionism and emotional distress in physical health populations, including CFS/ME.
However, research to date has focussed on the relationship between perfectionism and fatigue, as well as perfectionism as a predisposing risk factor for CFS/ME.
Within the CFS/ME population, the association between perfectionism and depression and/or anxiety is under-researched, hence the selection of the question addressed in Chapter 1: What is the relationship between perfectionism and co-morbid depression and anxiety in people living with CFS/ME?
Chapter 1 systematically reviews the existing evidence of a relationship between perfectionism and either depression or anxiety, in this patient group.
This process identified 7 relevant studies reported in 8 papers. Several factors of perfectionism were explored.
Consistent with the wider literature and psychological theory, narrative synthesis indicated maladaptive perfectionism was consistently associated with depression.
However, evidence for associations with other aspects of perfectionism was inconsistent.
The relationship between perfectionism and anxiety in CFS/ME was identified as an under-researched area.
The review was prepared for submission to the Journal of Psychosomatic Research and formatted accordingly (see Appendix A).
The journal was chosen because of its focus upon the relevance of psychological processes in physical health.
Findings of the review are intended to guide directions for future research, in addition to therapeutic interventions which seek to reduce depression in this patient group.
Chapter 2 examines the potential applicability of the Self-Regulatory Executive Function (S-REF) model of emotional distress (Wells & Matthews 1994) to understanding depression and anxiety experienced alongside CFS/ME.
This model predicts that prolonged distress arises not from symptom-related appraisals or thought content per se, but rather metacognitive beliefs about worry and/or rumination, which drive unhelpful thought processes and responses; this is termed the cognitive-attentional syndrome (CAS; Wells & Matthews 1994).
Two types of metacognitive belief are theorised to be of particular importance in activating and maintaining the CAS: positive metacognitive beliefs about the usefulness of worry, e.g. 'Worrying helps me cope', and negative metacognitive beliefs about the uncontrollability and danger of worry, e.g. 'When I start worrying, I cannot stop'.
The study found metacognitive beliefs accounted for a significant proportion of the variance in both depression and anxiety, when controlling for demographic and clinical variables including level of fatigue.
Negative metacognitive beliefs, lack of cognitive confidence and cognitive self-consciousness and the CAS emerged as significant independent statistical predictors of depression.
Positive metacognitive beliefs, negative metacognitive beliefs and the CAS emerged as significant independent statistical predictors of anxiety. Overall, results provided support for the S-REF model.
The relationship between positive metacognitive beliefs and depression was fully mediated by the CAS.
Relationships between negative metacognitive beliefs and both depression and anxiety, and positive metacognitive beliefs and anxiety were partially mediated by the CAS.
The paper is intended for submission to the British Journal of Health Psychology (Appendix B), selected due to the focus on all aspects of psychology related to health, including the management of chronic illness.
Findings are intended to have implications for clinical interventions, specifically aiming to reduce co-morbid anxiety and/or depression in people living with CFS/ME.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (D.Clin.Psy.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.815650 DOI:
10.17638/03100418