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  3. Cardiac Interoception In Action: Modulation After A Stress Induction With A Speech Task.
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  3. Cardiac Interoception In Action: Modulation After A Stress Induction With A Speech Task.

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Cardiac interoception in action: Modulation after a stress induction with a speech task.

Lorena Desdentado1, Micah G Allen2, Jasmin Schultze3

  • 1Department of Clinical and Health Psychology, Institute of Psychology and Education, Ulm University, Albert-Einstein-Allee 47, Ulm 89069, Germany; CIBER of Physiopathology of Obesity and Nutrition (CIBEROBN), Instituto de Salud Carlos III, Av. Monforte de Lemos, 3-5, Madrid 28029, Spain; Polibienestar Research Institute, University of Valencia, Serpis 29, Valencia 46022, Spain; Department of Developmental and Educational Psychology, University of Valencia, Blasco Ibáñez 21, Valencia 46021, Spain; Department of Personality, Evaluation and Psychological Treatments, University of Valencia, Av. Blasco Ibáñez 21, Valencia 46010, Spain.

Biological Psychology
|February 22, 2026

View abstract on PubMed

Summary
This summary is machine-generated.

Acute stress enhances cardiac interoception, improving the ability to sense heart signals. This study found increased interoceptive sensitivity and attention to the heart during stressful tasks.

Keywords:
AnxietyInteroceptionPredictive codingPublic speakingSpeech taskStress

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Area of Science:

  • Psychology
  • Neuroscience
  • Psychophysiology

Background:

  • Interoception, the sense of the body's internal state, is typically studied at rest.
  • Emerging evidence suggests interoceptive processes may change with external demands.
  • Cardiac interoception specifically, the perception of heartbeats, is a key area of interest.

Purpose of the Study:

  • To investigate if cardiac interoception is altered by acute stress.
  • To examine changes in interoceptive sensitivity and related measures under stress.

Main Methods:

  • 139 adults underwent either a stressful speech task or a control reading task.
  • Cardiac interoception was assessed using the heart rate discrimination (HRD) task.
  • Self-report measures of attention to heart signals were collected pre- and post-task.

Main Results:

  • The stress group exhibited significantly increased interoceptive sensitivity (d') compared to the control group.
  • Participants under stress reported heightened attention to their heart signals.
  • No significant changes were found in other interoceptive outcomes.

Conclusions:

  • Acute stress appears to enhance cardiac interoceptive sensitivity and self-reported attention to the heart.
  • These findings suggest a dynamic interplay between stress and interoception.
  • Further research is needed to validate these results and explore clinical implications.