Implicit affective evaluation bias in hypochondriasis: findings from the Affect Misattribution Procedure

Area of Science:

• Psychology
• Clinical Psychology
• Cognitive Science

Background:

• Cognitive theories propose catastrophic misinterpretations of bodily sensations maintain hypochondriasis (HYP).
• Implicit affective components may influence illness information processing in HYP.
• Previous research lacks implicit assessment of affective evaluation biases in HYP patients.

Purpose of the Study:

• To investigate implicit negative affective evaluation biases in patients with HYP.
• To compare these biases in HYP patients against those with anxiety disorders (AD) and healthy controls (CG).
• To explore the relationship between implicit evaluations and health anxiety levels.

Main Methods:

• Utilized an adapted Affect Misattribution Procedure (AMP) with illness, symptom, and neutral primes.
• Compared 80 HYP patients, 83 AD patients, and 90 healthy controls.
• Assessed implicit affective reactions to various stimuli.

Main Results:

• The HYP group displayed significantly more negative affective reactions to illness primes compared to both control groups.
• HYP patients showed more negative implicit evaluations on symptom primes versus the CG.
• A significant inverse relationship was found between implicit evaluations of illness words and health anxiety scores.

Conclusions:

• An implicit negative affective evaluation bias towards serious illnesses, not just symptoms, is a unique characteristic of hypochondriasis.
• This finding supports cognitive models emphasizing affective biases in HYP.
• The study highlights the role of implicit processes in the maintenance of health anxiety.