Chain motifs

…data shows that specific network motifs are either significantly overrepresented or underrepresented in BNNs as compared to random networks. The functional significance of such non-random motifs in BNNs is poorly understood. Here, we specifically ask the question of how the presence of 3-neuron motifs in the excitatory and inhibitory

Networks of excitatory and inhibitory (EI) neurons form a canonical circuit in the brain. Classical theoretical analyses of dynamics in EI networks have revealed key principles such as EI balance or paradoxical responses to external inputs. These seminal results assume that synaptic strengths depend on the type of neurons they connect but are otherwise statistically independent. However, recent synaptic physiology datasets have uncovered connectivity patterns that deviate significantly from independent connection models. Simultaneously, studies of task-trained recurrent networks have emphasize

…highlighted the strong presence of motifs – specific connectivity patterns between pairs and triplets of neurons–beyond the scope of mean connectivity[1] However, it is a priori not clear which of the experimentally identifie