The presence of attentional and interpretation biases in patients with severe MS-related fatigue.
de Gier, Marieke, Oosterman, Joukje M, Hughes, Alicia M et al. · British journal of health psychology · 2024 · DOI
Quick Summary
This study looked at whether people with severe fatigue from MS or ME/CFS tend to notice fatigue-related information more readily or interpret unclear physical symptoms in a threatening way compared to healthy people. Researchers found that both MS and ME/CFS patients interpreted ambiguous body sensations as more threatening than healthy controls did, though there was no difference in how they paid attention to fatigue-related words. The way patients interpreted symptoms was linked to how they mentally responded to their symptoms.
Why It Matters
Understanding cognitive biases in ME/CFS is important because they may contribute to how symptoms are interpreted and perpetuated. This study directly compares ME/CFS with MS, helping clarify whether threat-related interpretation patterns are shared across severe fatigue conditions or disease-specific, which could inform targeted psychological interventions.
Observed Findings
No statistically significant group differences in fatigue-related or physical activity-related attentional bias between MS patients, ME/CFS patients, and healthy controls.
Both MS and ME/CFS patient groups showed significantly elevated somatic interpretation bias (tendency to interpret ambiguous symptoms as threatening) compared to healthy controls (p < .001).
MS patients demonstrated stronger somatic interpretation bias than ME/CFS patients.
In MS patients, somatic interpretation bias was significantly correlated with cognitive responses to symptoms.
Inferred Conclusions
MS patients with severe fatigue tend to interpret ambiguous bodily information in a somatically threatening manner, potentially feeding into unhelpful coping strategies.
Somatic interpretation bias may contribute to perpetuation of severe fatigue in MS through cognitive responses to symptoms.
Attentional bias to fatigue-related information may not be a primary feature distinguishing severely fatigued patients from controls, unlike interpretation bias.
Remaining Questions
Does somatic interpretation bias precede fatigue onset or develop as a result of chronic illness experience?
Would cognitive-behavioral interventions specifically targeting interpretation bias reduce fatigue severity in ME/CFS?
What This Study Does Not Prove
This study does not prove that interpretation bias causes or perpetuates fatigue—only that a correlation exists. It does not establish whether these biases develop as a response to chronic illness or precede it. The finding applies to severely fatigued patients and may not generalize to those with milder ME/CFS symptoms.
Tags
Symptom:Cognitive DysfunctionFatigue
Method Flag:PEM Not DefinedWeak Case DefinitionMixed Cohort