Table 1.
Properties of 12 neurons recorded with extracellular spikes of >50-μV magnitude
| Spike Count |
|||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Neuron | Mouse | Layer | Type | Awake | No. of Working Electrodes | All | Burst | Firing Rate, Hz | Burst Count | Burst Rate, Hz | Spikes per Burst | Burst Duration, ms | Burst ISI, ms |
| 1 | A | 5 | Whole | Yes | 236 | 3,877 | 989 | 8.50 | 327 | 0.72 | 4.0 (1.7) | 28 (18) | 9 (4) |
| 2 | B | 5 | Cell attached | No | 122 | 2,372 | 969 | 5.20 | 489 | 1.07 | 3.0 (1.0) | 14 (8) | 7 (3) |
| 3 | C | 5 | Whole | No | 236 | 323 | 15 | 0.71 | 15 | 0.03 | 2.0 (0.0) | 15 (3) | 14 (3) |
| 4 | D | 5 | Whole | Yes | 214 | 2,926 | 1,328 | 6.42 | 566 | 1.24 | 3.3 (1.6) | 24 (17) | 10 (4) |
| 5 | B | 5 | Whole | No | 122 | 8,748 | 4,004 | 19.18 | 2,296 | 5.04 | 2.7 (1.0) | 15 (11) | 9 (4) |
| 6 | E | 2/3 | Whole | No | 58 | 1,136 | 291 | 2.49 | 168 | 0.37 | 2.7 (1.4) | 20 (15) | 12 (5) |
| 7 | F | 5 | Whole | No | 225 | 4,640 | 1,625 | 10.18 | 693 | 1.52 | 3.3 (1.5) | 17 (10) | 7 (4) |
| 8 | B | 2/3 | Whole | No | 122 | 823 | 93 | 1.80 | 65 | 0.14 | 2.4 (0.8) | 18 (12) | 12 (4) |
| 9 | G | 2/3 | Cell attached | No | 238 | 205 | 6 | 0.45 | 6 | 0.01 | 2.0 (0.0) | 15 (3) | 15 (3) |
| 10 | B | 2/3 | Whole | No | 122 | 78 | 16 | 0.17 | 15 | 0.03 | 2.1 (0.3) | 7 (2) | 6 (2) |
| 11 | F | 5 | Whole | No | 225 | 2,976 | 1,199 | 6.53 | 522 | 1.14 | 3.3 (0.3) | 15 (8) | 6 (4) |
| 12 | D | 2/3 | Whole | No | 214 | 1,592 | 216 | 3.49 | 187 | 0.41 | 2.2 (0.4) | 13 (8) | 11 (5) |
Some recordings are from the same mouse, as denoted. Layer was inferred from stereotaxic coordinates. Working electrodes refers to the no. of electrodes on the multielectrode array that were not open or shorted. Spike count is based on the patch recording and is reported for both burst and nonburst spikes. Firing rates varied from 0.2 to 19.2 Hz. The no. of bursts (burst count) is given as well as the burst rate (no. of bursts per unit time) for the recording. The no. of spikes per burst, mean burst duration, and mean burst interspike interval (ISI) are given as means (SD).