Markram, HSegal, M2013-01-282013-01-282013-01-28199010.1016/0006-8993(90)91106-Qhttps://infoscience.epfl.ch/handle/20.500.14299/883152350680We examined the electrophysiological properties of cholinergic and non-cholinergic neurons in the medial septum-diagonal band complex (MSDB) of the rat in the in vitro slice preparation. Cells were identified electrophysiologically, filled with Lucifer yellow, fixed and processed for immunohistochemistry with fluorescent labeled anti-choline acetyltransferase (ChAT) antibody. Cholinergic and non-cholinergic neurons differed in action potential parameters, spike afterpotentials and in current-voltage relationships. In addition, cholinergic neurons expressed a potent transient outward rectification in response to a depolarizing current pulse.text::journal::journal article::research article