Table 2.

Brain regions specifically activated in relation to high-amplitude slow waves

Brain region	x	y	z	P	Z score
Brainstem (pons) (41)	−14	−40	−28	0.025	3.63
Left cerebellar hemisphere (13)	−48	−66	−32	0.006	4.03
Right cerebellar hemisphere (13)	36	−62	−26	0.047	3.42
Right parahippocampal gyrus (19)	24	−36	−26	0.003	4.21
Left parahippocampal gyrus (19)	−24	−34	−28	0.014	3.81

Here the x, y, and z values are coordinates in the MNI. The Z scores result from the statistical parametric analysis; P refers to the probability of the null hypothesis (i.e., absence of activity change associated with high-amplitude slow waves; P < .05), after correction for multiple comparisons on a volume of interest centered on published coordinates (reference specified for each brain area). Additional results that did not survive correction for multiple comparisons are given in Table S2.