An interoceptive illusion of effort induced by false heart rate feedback
Interoception, or the sense of the internal state of the body, is key totheadaptiveregulationofourphysiologicalneeds.Recenttheories 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 signalsfrominsidethebody.Thisframeworksuggeststhatproviding false interoceptive feedback may induce misperceptions of physiological variables, or “interoceptive illusions.” Here we ask whether it is