Table 1.
Motifs in the brain and cultured neuron networks.
| Subject | Resolution (ms) | Repeats | Motifs/min | Shuffled motifs/min | Number of neurons (units) in motif (range) | Motif length (ms) | Method | Reference |
|---|---|---|---|---|---|---|---|---|
| Slice mouse primary visual cortex EPSC’s from 2 neurons | 2 | ≥3 | 7 | 2 | Covariance 20 ms | Ikegaya et al. (2004) | ||
| -same- | 1 | ≥3 | 0.6 | 2 | Covariance 20 ms | |||
| Ca++ transients, mouse primary visual/prefrontal cortex | 1000 | 1.8 | 50% | Covariance 1 s | ||||
| Mouse frontal cortex culture | 10 | 18 | 1.2 | 3 (3–6) | Joint entropy | Bettencourt et al. (2007) | ||
| Rat cortical culture 21 div | 1 | ≥2 | 0.8 | 0.3 | 2 (2–13) | 125 | Template match | Rolston et al. (2007) |
| -same- | 1 | ≥3 | 0.1 | 3 (3–6) | 105 | -same- | ||
| Mouse cortical culture13–15 div | 2 | ≥2 | 0.3 | n/a | 5 | 100 | Template match | Sun et al. (2010) |
| ≥3 | 0.08 | 3 (2–4) | 100 | |||||
| Rat Entorhinal-hippocampal slice culture, Calcium imaging | 2 | ≥2 | 40 | 5 | Pairwise corrrelogram | Matsumoto et al. (2013) | ||
| 4 | ≥2 | 300 | 50 | 6 (3–15) | 60 (40–280) | -same- | ||
| Freely moving mouse CA1 | 6 | 40% | 13% | 7 (4–9) | 143 | Template or pairwise rank | Stark et al. (2015) | |
| Dissociated rat DG connected to CA3 | 32 | ≥3 | 1.2 | 0.6 | 14–17 | Template | This work |
n/a = not available but significantly less than unshuffled data.