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Sensitivity to changes in rate of heartbeats as a measure of interoceptive ability
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posted on 2023-06-10, 03:53 authored by Dennis Larsson, Giulia Esposito, Hugo CritchleyHugo Critchley, Zoltan DienesZoltan Dienes, Sarah GarfinkelIndividuals vary in their ability to perceive, as conscious sensations, signals like the beating of the heart. Tests of such interoceptive ability are, however, constrained in nature and reliability. Performance of the heartbeat tracking task, a widely used test of cardiac interoception, often corresponds well with individual differences in emotion and cognition, yet is susceptible to reporting bias and influenced by higher-order knowledge, e.g., of expected heart rate. The present study introduces a new way of assessing cardiac interoceptive ability, focusing on sensitivity to short-term, naturalistic changes in frequency of heartbeats. At rest, such heart rate variability typically reflects the dominant influence of respiration on vagus parasympathetic control of the sinoatrial pacemaker. We observed an overall tendency of healthy participants to report feeling fewer heartbeats during increases in heart rate, which we speculate reflects a reduction in heartbeat strength and salience during inspiratory periods when heart rate typically increases to maintain a stable cardiac output. Within-participant performance was more variable on this measure of cardiac interoceptive sensitivity relative to the “classic” heartbeat tracking task. Our findings indicate that cardiac interoceptive ability, rather than reflecting the veridical monitoring of subtle variations in physiology, appears to involve more interpolation wherein interoceptive decisions are informed by dynamic working estimates derived from the integration of afferent signaling and higher-order predictions.
History
Publication status
- Published
File Version
- Published version
Journal
Journal of NeurophysiologyISSN
0022-3077Publisher
American Physiological SocietyExternal DOI
Issue
5Volume
126Page range
1799-1813Event location
United StatesDepartment affiliated with
- BSMS Neuroscience Publications
Full text available
- No
Peer reviewed?
- Yes
Legacy Posted Date
2022-06-15First Compliant Deposit (FCD) Date
2022-06-13Usage metrics
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