Homotypic synaptic coupling and the cellular bases of gamma oscillatory activity

Althoughthe importance of gamma oscillatory activity in brain function is wellestablished, the exact contributions of neuron and synapse typeremains unclear. In their study, Hu and Agmon (J Neurophysiol 114:624–637, 2015) show that precision as well as firing rate dependenceof gamma synchrony rely primarily on cellular coupling type (chemical,electrical, or dual), rather than properties intrinsic to cell type. These findings are discussed with a focus on current ramifications andthe implications for future research.