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999248438
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Neurons FiringProperties
65 records
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group (17%) that fired with a train of individual APs which failed to show any
adaptation after the first interspike interval, commonly slightly shorter than
the subsequent ones; in these neurons, each AP was consistently followed by a
more or less evident depolarizing afterpotential (DAP)."
"Bot in immature and in adult neurons the membrane deflection in response to
the injection of hyperpolarizing current pulses had a complex shape, including
a depolarizing "sag" due to the anomalous rectification (I(AR)) preceding a
plateau (Fig. 3). This "sag" was found present since the first postnatal week
and was more prominent in RSna and IB neurons compared to RSad neurons in all
age groups (Table 1)."p.1016
"In the non-adapting cells, rectification led to a considerable divergence in
the I-V curves obtained by plotting peak and plateau voltage deflections
induced by means of the injection of hyperpolarizing current pulses of
increasing amplitude (Fig. 3A(2)). Superfusion of ACSF containing 0.2 mM of
CsCl was capable of removing this rectification phenomenon and slightly
delaying the post-break APs, without changing the firing characteristics of
the RSna neurons (Fig. 3C(1-2))."pp.1016-1017
