Figure 2.

Effects of 8-OH-DPAT. (A) Shows responses to repetitive dorsal root stimulation in control ACSF (left) and during superfusion with 8-OH-DPAT 10 μM. Note the greater effect of 8-OH-DPAT on the first second of the response (horizontal arrow) than on the development of the response upon further stimulation. (B) Shows responses to single stimuli in control ACSF and during superfusion of 8-OH-DPAT 1 μM obtained from a different experiment. Note the strong reduction of the mono-synaptic reflex (vertical arrow).