Reliability and precision of spikes during injection of steady excitatory stimuli
| Stimulus | n | Reliability (%) | Precision (msec) |
|---|---|---|---|
| Current step | 10 (5) | 17 ± 11 | 2.87 ± 0.44 |
| AMPA | 12 (5) | 60 ± 13 | 1.75 ± 0.52 |
| AMPA + NMDA | 18 (8) | 49 ± 21 | 2.30 ± 0.39 |
| Synchronous | 5 (3) | 76 ± 11 | 1.61 ± 0.49 |
| AMPA + NMDA |
Each analyzed ensemble comprises 10–20 trials. Mean firing frequency was between 5 and 25 Hz. n = number of ensembles analyzed (number of cells in parentheses). For the synchronous compound AMPA–NMDA stimulus, τb was 0.1 sec and λb was 2 sec−1. The first 200 msec of each trial was excluded from analysis. Each value is average ± SD.