Before revision:  This kind of "effective" depression (i.e., strong/weak LTD) at  PF-PC synapses causes a big modulation in firing of PCs, which then exert effective inhibitory coordination on  vestibular nucleus (VN) neuron (which evokes OKR).
After revision:  This kind of "effective" depression (i.e., strong/weak LTD) at PF-PC synapses causes a big modulation in firings of PCs, which then exert effective inhibitory coordination on vestibular nucleus (VN) neuron (which evokes OKR).