Table 1.

Correlation of regional cerebral blood flow and change of plasma [Na]

Hemisphere	Lobe	Gyrus or region	Brodman area	x	y	z	Cluster size, voxels	Z score
Activations
Limbic
Left	Limbic	Cingulate	24	−13	−14	40	70	3.42
Left	Limbic	Anterior cingulate	32	−8	40	14	55	3.16
Left	Limbic	Cingulate	24	−7	−4	40	68	3.13
Left	Limbic	Anterior cingulate	32	−7	28	24	33	2.90
Parietal
Right	Parietal	Posterior centrum	3/2/1	30	−22	42	12	2.93
Frontal
Right	Frontal	Medial frontal	6	34	4	41	39	2.91
Temporal
Right	Temporal	Middle temporal	39	42	−60	22	79	3.37
Left	Temporal	Middle temporal	21	−60	−36	−11	38	3.0
Right	Temporal	Superior temporal	38	38	18	−26	54	2.96
Right	Temporal	Superior temporal	22	40	−46	12	82	2.92
Occipital
Right	Temporal	Middle temporal	37	37	−58	2	50	2.93
Cerebellum
Right	Anterior	Culmen		14	−38	−8	23	3.11
Left	Posterior	Declive		−46	−69	−19	47	2.92
Left	Posterior	Declive		−51	−58	−20	45	2.91
Deactivations
Limbic
Right	Limbic	Parahippocampal		22	−39	5	73	−3.61
Frontal
Left	Frontal	Superior frontal	8	−18	18	48	33	−3.22
Left	Frontal	Middle frontal	6	−36	11	43	53	−3.21
Left	Frontal	Inferior frontal	44	−45	16	18	47	−3.16
Left	Frontal	Inferior frontal	47	−32	24	0	47	−2.97
Temporal
Left	Temporal	Inferior temporal	38	−46	−46	−10	40	−3.06
Right	Temporal	Superior temporal	38	40	10	−18	78	−2.94
Other regions
Right	Sublobar	Caudate		24	−38	14	110	−3.74
Right		Thalamus		2	−20	4	36	−2.95
Right	Thalamus	Pulvinar		18	−28	15	64	−2.98

Positive correlations (activations) and negative correlations (deactivations) of regional cerebral blood flow with change of plasma [Na]. Z scores of magnitude >2.90 or <−2.90 are recorded. Each voxel has a volume of 8 mm³.