Table 1. Table showing the number of monoamine receptor-expressing cells that do not receive synapses from releasing cells, and the number of connections in each layer that are non-synaptic, including connections between neurons within the same class.
Due to a many-to-many relationship between senders and receivers, the fraction of non-synaptic edges can exceed the fraction of non-synaptic cells/nodes. Values for the expanded network including putative dop-5 and dop-6 connections are in parentheses.
| Network | Cells with no synaptic input | Non-synaptic edges | ||
|---|---|---|---|---|
| № | % | № | % | |
| Serotonin | 62 | 75.6 | 457 | 93.3 |
| Dopamine | 121 (138) | 82.3 (73.8) | 1133 (1422) | 97 (95.6) |
| Octopamine | 28 | 100 | 54 | 100 |
| Tyramine | 107 | 93.9 | 216 | 94.7 |
| Aggregate | 183 (178) | 77.9 (70.9) | 1860 (2149) | 95.9 (95.1) |