. Author manuscript; available in PMC: 2009 Feb 1.

Published in final edited form as: Behav Neurosci. 2008 Feb;122(1):224–232. doi: 10.1037/0735-7044.122.1.224

Table 3.

Resting Heart Rate (RHR) and Responses to 70° Head-up Roll (Expressed as Change From Baseline [BSL]) in Prenatal Rats Gestated During Spaceflight and 1 - g Controls

	Gravity condition
	Spaceflight				1 - g Controls
	RHR		Δ BSL		RHR		Δ BSL
Trial	M	SD	M	SD	M	SD	M	SD
1	262.1	31.0	-23.8_a^*	8.4	302.1	31.7	+0.9_b	3.5
2	260.2	38.9	-0.4	3.1	305.4	35.8	+1.4	7.5
3	259.7	34.7	+1.1	8.3	303.3	40.0	+5.3	12.8

Note. Synchronous and vivarium control animals did not differ. Their data were therefore combined for statistical analysis. Heart rate (beats per minute) was calculated for 30 s following stimulus onset minus prestimulus baseline (time = 0 s). Means with differing subscripts are different at p < .05.

Differed from prestimulus values, p < .05.