Table 1.

Indexes evaluated in the time domain during 100 min of class and divided into 1st interval and 2nd interval

Period of 50 min
Line	Indexes	1st I	2nd I	Meaning
1st	rMSSD (ms)	–	–	Poincaré geometric standard deviation for 1st I and 2nd I
2nd	Toronto C	–	–	Toronto Curiosity scale (0–4) for 1st I and 2nd I
3rd	Toronto D	–	–	Toronto Decentering scale (0–4) for 1st I and 2nd I
4th	N	–	–	No. of samples from the interval
5th	$\mathrm{\mu }$BPM	–	–	Overall average bpm from the interval
6th	$\%$ Error (${\text{e}}^{-2}$)	–	–	$\%$ Noisy samples in transmission and data collect
7th	SD1 (ms)	–	–	Perpendicular Poincaré standard deviation from the interval
8th	SD2 (ms)	–	–	Poincaré diagonal standard deviation from the interval
9th	SD1/SD2	–	–	How far SD1 is to SD2 from the interval
10th	pRR50 ($\%$)	–	–	percentage of $R{R}_n$ samples > 50 ms
11th	PMS	–	–	Philadelphia Mindfulness Scale (for Awareness 1–5) for 1st I and 2nd I
12th	MAAS	–	–	Mindful Attention Awareness Scale (1–6) for 1st I and 2nd I