Table 2.

Summary of mutual information measures for pyramidal cells in normal animals

Cell type	All cells	Superficial E cells	Deep E cells	Superficial I cells	Deep I cells
Fp global (Hz)	33.3 ± 2.1	30.4 ± 4.0	38.3 ± 5.9 (NS)	28.9 ± 3.8	31.5 ± 9.4 (NS)
Fp local (Hz)	15.9 ± 1.8	9.0 ± 0.7	42.1 ± 6.2**	9.1 ± 0.6	12.2 ± 0.9*
Bw global (Hz)	56.5 ± 2.5	49.1 ± 4.3	78.8 ± 3.7**	44.4 ± 5.2	55.8 ± 7.5 (NS)
Bw local (Hz)	35.6 ± 2.8	21.4 ± 1.2	74.8 ± 6.9**	21.1 ± 1.2	31.4 ± 2.9*
MIlow global (bits/sp/Hz)	0.013 ± 0.001	0.017 ± 0.003	0.015 ± 0.002 (NS)	0.006 ± 0.001	0.010 ± 0.002 (NS)
MIlow local (bits/sp/Hz)	0.029 ± 0.001	0.036 ± 0.003	0.017 ± 0.002**	0.040 ± 0.003	0.021 ± 0.002**
MIhigh global (bits/sp/Hz)	0.014 ± 0.001	0.016 ± 0.002	0.021 ± 0.001 (NS)	0.006 ± 0.001	0.007 ± 0.001 (NS)
MIhigh local (bits/sp/Hz)	0.010 ± 0.001	0.006 ± 0.002	0.019 ± 0.002**	0.005 ± 0.0005	0.008 ± 0.001**
n	77	18	14	11	8

Comparisons of mean values for superficial and deep E and I cells were made with t tests. ^*p < 0.05; ^**p < 0.001. bits/sp/Hz, Bits per spike per hertz; NS, not significant.