Respiratory Interoception and Pathological Illness Anxiety: Disentangling Bias

Area of Science:

• Psychology
• Neuroscience
• Medicine

Background:

• Pathological illness anxiety (PIA) may involve biased interoception, but empirical evidence is limited.
• Understanding interoceptive deviations can inform PIA treatment optimization.
• This study investigated interoceptive differences in individuals with PIA.

Purpose of the Study:

• To test the hypothesis that individuals with PIA classify bodily sensations differently than controls.
• To investigate interoceptive perception and response bias in pathological illness anxiety.

Main Methods:

• A respiratory categorization task was used with varying resistive loads.
• Participants memorized and then classified respiratory sensations under different resistance levels.
• Sensitivity and response bias in classification were compared between 39 PIA patients and 35 controls using multiple regression.

Main Results:

• Individuals with PIA demonstrated similar sensitivity to respiratory loads compared to controls.
• However, PIA patients erroneously classified higher loads as belonging to category A more frequently.
• This indicates a tendency to underestimate respiratory resistance in pathological illness anxiety.

Conclusions:

• Individuals with PIA exhibit a systematic "wait and see" response bias in classifying respiratory sensations.
• Altered respiroception in PIA may arise from biased perception, memory, or both.
• Further research is needed to develop valid paradigms for studying interoceptive biases in PIA.