Auditory functional magnetic resonance imaging in dogs – normalization and group analysis and the processing of pitch in the canine auditory pathways

Table 1 Statistical values obtained with sequences 1 and 2 in the single animal and group analysis

Sequence 1
	Single animal analysis (average)			Group analysis
	Average t-value	Signal change (%)	Activated voxels (%)	t-value	Signal change (%)	Activated voxels (%)
CC	10.04	0.318	54.77	9.53	0.245	88.89
MGN	4.5	0.249	32.96	6.11	0.143	68.52
TC	-2.01	-0.032	0.52	-2.74	-0.045	0.08
Sequence 2
CC	1.93	0.070	8.24	3.20	0.051	7.41
MGN	1.32	0.083	2.46	2.08	0.036	3.70
TC	0.77	0.023	2.05	3.20	0.050	3.88

The average t-value of all voxels included in the ROI, the mean percentage signal change between sound and silence conditions and the percentage of voxels showing significant activation are listed for the different sequences and ROIs (CC caudal colliculi, MGN medial geniculate nuclei, TC temporal cortex). The statistical values for the subcortical ROIs are higher with sequence 1, whereas only sequence 2 recorded a positive t-value and signal change for the cortical ROI

ISSN: 1746-6148