STOCHASTIC RECRUITMENT IN PARALLEL FIBER ACTIVITY PATTERNS

Random-excitation granule cells are likely to overwhelm spatiotemporal sequences described as ''tidal waves'' in Braitenberg et al.'s target article. A mechanism is proposed involving the Golgi cells to reinfor ce tidal waves against noise. The recurrent inhibition by the Golgi ca lls can recruit random excitations of granule cells in phase with sequ ences of mossy fiber input.