Table 5.

Subthreshold brain activity for periodic-stimulus evoked sensations in anesthetized rats

				Coordinate
Volume	L/R	Anatomical Structure	t-Value	x	y	z
Activation
166	L	Primary somatosensory cortex, barrel field	3.9	−5.0	−2.9	−2.0
		Primary somatosensory cortex, barrel field	3.3	−5.2	−3.9	−1.2
143	L	Primary somatosensory cortex, hindlimb region	4.2	−1.7	−0.6	−1.2
	L	Primary motor cortex	3.5	−0.8	−0.6	−0.8
101	L	Secondary visual cortex, mediolateral area	4.1	−2.9	−0.6	−5.8
78	L	Secondary motor cortex	3.5	−0.8	−0.8	1.6
	R/L	Cingulate cortex area 1	3.1	−0.4	−1.9	1.6
58	R/L	Prelimbic cortex	3.1	1.0	−2.9	1.8
	R	Secondary motor cortex	2.7	1.2	−1.9	1.4
56	R	Primary somatosensory cortex, trunk region	3.3	3.1	−1.2	−2.6
54	R	Ventral posterolateral thalamic nucleus	3.1	2.7	−6.2	−2.8
	R	Ventrolateral thalamic nucleus	2.6	1.6	−6.0	−2.8
51	R	Lateral entorhinal cortex	3.0	6.4	−6.8	−5.4
39	R/L	Prelimbic cortex	3.4	0.8	−3.7	2.8
34	L	Dorsal lateral geniculate nucleus	3.4	−3.3	−4.9	−5.0
28	L	Lateral septal nucleus, intermediate part	3.6	−0.2	−5.8	1.4
Deactivaton
52	L	Caudate putamen	−3.4	−3.1	−6.2	0.6
35	L	Lateral posterior thalamic nucleus, mediorostral part	−3.5	−1.6	−3.5	−4.2
30	L	Amygdala intermediate tissue	−3.1	−4.1	−8.0	−1.4

List of activated and deactivated brain regions in response to air-puff stimulation when rats were under anesthesia (uncorrected P < 0.01, and k = 26 voxels) is shown. Volumes are expressed in no. of voxels.