The PING Model of Gamma Rhythms

Abstract

When populations of excitatory and inhibitory neurons are synaptically connected, oscillations often emerge. The reason is apparent: Activity of the excitatory neurons (which we will call E-cells from here on, as we did in Chapter 22) generates activity of the inhibitory neurons (I-cells). The activity of the I-cells causes the activity of the E-cells to cease transiently, and when it resumes, the E-cell population is closer to synchrony, as discussed in Chapter 29 The oscillations in Chapter 22 are of a similar nature, although there individual cells were not modeled. Figure 30.1 (nearly identical with Fig. 22.1) represents the interaction of E- and I-cells symbolically.