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Neurosci Lett. 1996 Dec 6;220(1):41-4.

Electrophysiological properties of rat subicular neurons in vitro.

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Institute of Physiology at the Charité, Department of Neurophysiology,Humboldt University Berlin, Germany.


The electrophysiological properties of 46 bursting cells and 39 regular firing cells were studied in the subiculum of rat combined hippocampal-entorhinal cortex slices. In bursting cells we found a significantly higher resting membrane potential than in regular firing cells. Upon hyperpolarization both cell types expressed a delayed inward rectification with a subsequent afterdepolarization. While in regular firing cells longer lasting depolarizing current injection caused a train of action potentials with a rather marked decline of discharge frequency, bursting cells displayed only little frequency accommodation. Regular firing cells usually displayed a fast and a slow afterhyperpolarization following a train of action potentials, while bursting neurons present only a slow afterhyperpolarization.

[Indexed for MEDLINE]

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