Figure 3.

Effects of NBQX on CR incidence (±SE) in IO injection rabbits (n = 12) when tested immediately after the injection (▴) and after the diffusion waiting period (□) are compared with those observed after the control injection of vehicle (○). The vertical dashed line denotes the onset of NBQX injections. Note that up to six blocks of trials were required to obtain complete CR abolition in the nonwaiting test, whereas CRs were immediately absent in the first postinjection block of the waiting test. Injection of vehicle (aCSF) did not affect CR incidence.