Ultra-short term HRV features as surrogates of short term HRV: a case study on mental stress detection in real life.
R CastaldoL MontesinosP MelilloC JamesLeandro PecchiaPublished in: BMC medical informatics and decision making (2019)
This study concluded that 6 ultra-short HRV features are valid surrogates of short HRV features for mental stress investigation.