In this paper the effect of noise on activity of a neural network
of diffusively coupled excitatory-inhibitory cells with time delay
is analyzed. We distinguish between global and local noise
studying the different types of spatiotemporal behaviors observed
when a space-time correlated noise is applied to the system. The
results show a synchronization of the network in aperiodic
behavior with the help of tiny noisy perturbations on the external
signal depending on the spatial correlation of noise and the coupling coefficients.