Gamma Oscillations Facilitate Effective Learning in Excitatory-Inhibitory Balanced Neural Circuits

Figure 9

Other dynamic properties. (a–c) Blue curves are the evolution dynamics in circuits with plasticity starts from strength 0.1. Red diamond represents the start of simulation, and green diamond represent the start of extra stimulus. Orange curves are the results of static circuits with different synaptic strengths. (a) Synchronous dynamics with . (b) Moderately synchronous dynamics with . (c) Asynchronous dynamics with . The other parameters: . Transient excitatory and inhibitory current ratio in early stage of stimulus (d) (<5 s after applying extra stimulus input at ) and late stage of stimulus (e) (after synaptic weight stabilized). (f) Average E/I ratio before extra stimulus and after the removal of stimulus. (g) Firing rate before and after extra stimulus. (h) L2 norm of the difference of the connectivity matrices (reshaped to 1d and normalized) at the removal of the extra stimulus and 10 s later under normal background input.

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