We clustered 89 HRV indices across:
• Two different clustering algorithms
• Two timepoints
• Two samples

and found a set of robust HRV clusters that replicate across time, methods, and samples.

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Heart rate variability (HRV) is one of the widely used physiological measures in psychophysiological research. But with over 100 indices to choose from, how do we know which ones to use?

In our latest paper, we take a data-driven approach to help answer this.

doi.org/10.1111/psyp...
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