938 resultados para Automatic frequency control
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Thesis (M.S.)--University of Illinois at Urbana-Champaign.
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Mode of access: Internet.
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"...Final report ... sponsored by Signal Corps Engineering Laboratories, Fort Monmouth, N.J., and the Electronic Components Laboratory of the Wright Air Development Center, Wright-Patterson Air Force Base, Ohio."
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Mode of access: Internet.
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"May 13, 1981."
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ASTIA Document no. AD 212 466
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"Technical report AFFDL-TR-67-18"
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Mode of access: Internet.
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Bibliography: p. 22-23.
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Mode of access: Internet.
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Mode of access: Internet.
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Thesis (Ph.D.)--University of Washington, 2016-05
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Thesis (Ph.D.)--University of Washington, 2016-06
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The calcium-dependent afterhyperpolarization (AHP) that follows trains of action potentials is responsible for controlling action potential firing patterns in many neuronal cell types. We have previously shown that the slow AHP contributes to spike frequency adaptation in pyramidal neurons in the rat lateral amygdala. In addition, a dendritic voltage-gated potassium current mediated by Kv1.2-containing channels also suppresses action potential firing in these neurons. In this paper we show that this voltage-gated potassium current and the slow AHP act together to control spike frequency adaptation in lateral amygdala pyramidal neurons. The two currents have similar effects on action potential number when firing is evoked either by depolarizing current injections or by synaptic stimulation. However, they differ in their control of firing frequency, with the voltage-gated potassium current but not the slow AHP determining the initial frequency of action potential firing. This dual mechanism of controlling firing patterns is unique to lateral amygdala neurons and is likely to contribute to the very low levels of firing seen in lateral amygdala neurons in vivo.