Figure 4.

(A) Models of duration selectivity proposed by (Narins and Capranica, 1980) (left); (Casseday et al., 1994) (middle); and (Fuzessery and Hall, 1999) (right). For each stimulus condition, traces depict the excitation alone (EPSP), inhibition alone (IPSP), and combined (Σ EPSP + IPSP). (B) Averaged responses of a short-pass neuron to tone-bursts ranging in duration from 10 to 300 ms. Inhibition was isolated by examining the responses to 20 ms, 300 Hz tone bursts (gray, lower trace), a stimulus that evoked minimal excitation. Resting potential = −87 mV; BEF = 750 Hz; 65 dB SPL. Adapted from (Leary et al., 2008).