Table 4.

Correlations among fast-spiking ion channel transcript levels within and across MVN cell types

Cell type	r, avg	r, SD	p, avg	p, SD	No. sig; p < 0.05	No. of valid comparisons	Significant, %	No. of cells, average	No. of cells, SD
Pre-oculomotor	0.67	0.13	9.6E-03	2.4E-02	34	36	94.4	21.0	0.0
Pre-cerebellar	0.67	0.12	9.1E-03	1.6E-02	34	36	94.4	19.2	0.8
Unknown	0.84	0.10	5.9E-02	4.7E-02	6	15	40.0	5.7	0.5
Commissural	0.51	0.18	5.8E-02	1.4E-01	27	36	75.0	27.1	2.5
Cerebellar target	0.46	0.20	2.1E-01	2.3E-01	6	21	28.6	11.3	1.1
Local interneuron	0.25	0.24	3.2E-01	3.6E-01	17	33	51.5	42.2	25.5
All	0.71	0.08	1.1E-07	6.5E-07	36	36	100.0	116.3	36.4

Correlation coefficients and significance levels were evaluated for pairwise comparisons between ion channel genes in the left major branch of the dendrogram in Figure 4. Comparisons of transcript levels were considered valid when genes-of-interest expressed in more than three neurons. Table shows the average and SD of r and p values, the number of valid comparisons for each cell type, the percentage of correlations that were significant at the p < 0.05 level, and the mean and SD of the number of neurons in which correlations were evaluated in each group.