Table 1:

Summary of Autonomic Indices During the Trier Social Stress Test Across 4 Studies

Study	Task Period	IBI		RSA		PEP
		M	SD	M	SD	M	SD
1	Baseline	921.6	130.1	6.98	1.37	117.6	20.3
	Prep	724.8	123.1	6.91	1.61	103.3	21.7
	Speech	744.4	124.5	6.96	1.81	107.4	21.9
	Math	758.6	123.9	6.97	1.77	106.6	21.4
	Recovery	860.3	125.9	7.79	2.03	114.1	22.3
2	Baseline	897.2	124.0	6.69	1.26	118.8	15.0
	Prep	784.3	127.9	6.30	1.27	112.5	18.4
	Speech	759.0	107.9	6.19	1.17	110.0	17.8
	Q&A	784.0	111.4	6.17	1.12	115.7	16.7
	Recovery	819.9	131.6	6.46	1.19	116.5	16.1
3	Baseline	871.3	134.8	6.55	1.04	115.4	14.7
	Prep	725.8	133.8	6.14	1.17	102.2	17.2
	Speech	692.3	115.2	5.91	1.09	100.9	17.5
	Q&A	742.9	120.6	6.02	1.20	107.2	18.5
	Recovery	835.6	130.3	6.33	1.15	109.1	17.1
4	Baseline	923.5	157.6	6.63	1.16	125.1	13.4
	Prep	697.5	143.6	5.83	1.18	110.1	13.4
	Speech	710.5	142.0	6.09	1.06	113.9	12.5
	Math	743.8	152.4	6.21	1.04	114.2	12.8
	Recovery	833.4	156.5	6.26	1.10	121.3	12.7

Note: IBI = interbeat interval (milliseconds), RSA = respiratory sinus arrhythmia (ln[ms²]), PEP = pre-ejection period (milliseconds)