Fig. 4.
Similar changes in Vm and Rin in the presence of GABAB receptor antagonist and agonist in dorsal and ventral CA1 neurons. A and D: time courses of changes in Vm and Rin during CGP55845 (5 μM) wash-in experiments in dorsal (A) and ventral (D) neurons. Dorsal (B and C) and ventral (E and F) neurons showed no changes in Vm and Rin in the presence of CGP55845. G and J: time courses of Vm and Rin in the presence of baclofen in dorsal (G) and ventral (J) neurons. Dorsal (H and I) and ventral (K and L) CA1 neurons showed a significantly hyperpolarized Vm and a decreased Rin following activation of GABAB receptors. M and N: the changes in Vm and Rin were not significantly different in dorsal and ventral CA1 neurons in the presence of baclofen. *P < 0.05.