Reduction of auditory input improves performance on the heartbeat tracking task, but does not necessarily enhance interoception

摘要: Previous research utilising a between-subjects design indicates that the use of noise-dampening ear-protectors might enhance interoceptive accuracy (IAcc). In present study, we further examined this effect using repeated-measures, within-participants design, and investigated potential mechanisms explain effect. 50 participants completed heartbeat tracking task (HTT) with without ear-protectors, in counter-balanced order. Participants were asked to count number heartbeats occurring five discrete time intervals 25, 35, 45, 55 95 seconds, feeling for manual pulse. HTT scores significantly higher when worn, improvement performance was greatest lower baseline IAcc. also performed more consistently across trials wearing ear-protectors. The associated increased self-reported audibility, concentration, task-related confidence, decreased levels distractibility. Heartbeat audibility correlated worn. exteroceptive nature feedback from therefore precludes utility manipulation assess causal hypotheses related changes However, it may serve as simple, non-invasive effects externalised signals.