Increasing the size of the visual stimulus increases response reliability for both action potentials and EPSPs
Figure 7. A-B. Example responses to 1X (A) and 3X (B) stimuli. Note that with 3X the synaptic and action potential responses are more reliable from trial to trial. C-D. Increasing the size of the stimlus to include the nCRF (non-classical receptive field) results in both an increase in trial-to-trial spike reliability as well as EPSP reliabiligy. IPSP reliability is not affected.