
Fig. 2. Effects of Cl--free artificial cerebrospinal fluid (aCSF)
superfusion on integrated (
) whole-nerve activity recorded from isolated
brainstem preparations from a bullfrog tadpole exhibiting fictive gill and
lung bursts in cranial nerves VII and XII and from cranial nerve X of an adult
bullfrog and an adult grass frog showing fictive lung bursts. Results are
shown during superfusion with aCSF (Control), following a 20 min perfusion
with Cl--free aCSF and after a 90 min washout with normal aCSF.