Methodological recommendations for a heartbeat detection-based measure of interoceptive sensitivity.

ABSTRACT: Heartbeat detection tasks are often used to measure cardiac interoceptive sensitivity-the ability to detect sensations from one's heart. However, there is little work to guide decisions on the optimum number of trials to use, which should balance reliability and power against task duration and participant burden. Here, 174 participants completed 100 trials of a widely used heartbeat detection task where participants attempt to detect whether presented tones occurred synchronously or asynchronously with their heartbeats. First, we quantified measurement reliability of the participant's accuracy derived from differing numbers of trials of the task using a correlation metric; we found that at least 40-60 trials were required to yield sufficient reliability. Next, we quantified power by simula

SUBMITTER: Kleckner IR 

PROVIDER: S-EPMC4821012 | biostudies-literature | 2015 Nov

REPOSITORIES: biostudies-literature