An interoceptive illusion of effort induced by false heart-rate feedback.

ABSTRACT: Interoception, or the sense of the internal state of the body, is key to the adaptive regulation of our physiological needs. Recent theories contextualize interception within a predictive coding framework, according to which the brain both estimates and controls homeostatic and physiological variables, such as hunger, thirst, and effort levels, by orchestrating sensory, proprioceptive, and interoceptive signals from inside the body. This framework suggests that providing false interoceptive feedback may induce misperceptions of physiological variables, or "interoceptive illusions." Here we ask whether it is possible to produce an illusory perception of effort by giving participants false acoustic feedback about their heart-rate frequency during an effortful cycling task. We found that part

SUBMITTER: Iodice P 

PROVIDER: S-EPMC6628799 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature