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Does symptom perception after negative affect induction differ between physically ill and healthy individuals? An

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Negative emotions heighten symptom perception in patients with non-dialysis chronic kidney disease (ND-CKD). This effect, observed via the Affect and Symptoms Paradigm (ASP), impacts future symptom burden.

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Area of Science:

  • Psychology
  • Nephrology
  • Psychosomatic Medicine

Background:

  • Symptom perception is subjective, influenced by biopsychosocial factors.
  • The Affect and Symptoms Paradigm (ASP) is used to study emotional influences on symptom perception.

Purpose of the Study:

  • To investigate if negative affect induction influences symptom perception in non-dialysis chronic kidney disease (ND-CKD) patients and healthy controls.
  • To examine the association between the ASP effect and symptom burden in ND-CKD patients.

Main Methods:

  • Participants viewed positive, negative, and neutral picture series.
  • Symptom levels, affect, and arousal were rated after each series.
  • The ASP effect's association with 6- and 12-month symptom burden was analyzed in the ND-CKD group.

Main Results:

  • Negative pictures increased negative affect and arousal in both groups.
  • Symptom levels were higher after negative versus positive/neutral pictures, with comparable responses.
  • The ASP effect predicted 6-month symptom burden in ND-CKD patients.

Conclusions:

  • Negative affect induction demonstrably increases symptom levels in chronic illnesses like CKD.
  • Findings support the predictive processing model of symptom perception.
  • Difficulties in identifying feelings moderated symptom levels in the CKD group.