Brain Oscillations Elicited by the Cold Pressor Test: A Putative Index of Untreated Essential Hypertension

Table 1

Outline of experimental measurements.

	Task	Measurements	Duration
Day 1	Habituation to laboratory environment and CPT conditions		1 hour approximately
	Onset of 24 hr ABPM procedure (Section 2.2.1)		24 hours
Day 2	Cold pressor test rest baseline	EEG recording period 1	3 min
	Hand immersion in 2°C water bath	EEG recording period 2 (unit of stress)	1 min
	Continuation of immersion (2°C ) until spontaneous withdrawal	EEG recording period 3 (pain tolerance)	min
	Cold pressor test recovery (Section 2.2.2)	EEG recording period 4	3 min