Figure 8. Organization and dynamics of pyramidal cell-interneuron monosynaptic connections.
A. Single pyramidal neurons evoke spikes in interneurons at short latencies. Convergent inputs boost transmission probability. B. CA1 pyramidal neurons synchronize local interneurons. C. Connection strengths decrease with inter-somatic distance. D. Monosynaptic transmission probability exhibits activity dependent short-term facilitation and depression. Left: Single pyramidal neurons make both depressing and facilitating connections. Right: Single interneurons receive both depressing and facilitating connections. E. Spike transmission probability is increased if the interval since the last postsynaptic spike is in the gamma frequency range.