Dendritic Na+ spikes enable cortical input to drive action potential output from hippocampal CA2 pyramidal neurons
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چکیده
منابع مشابه
Dendritic Na+ spikes enable cortical input to drive action potential output from hippocampal CA2 pyramidal neurons
Synaptic inputs from different brain areas are often targeted to distinct regions of neuronal dendritic arbors. Inputs to proximal dendrites usually produce large somatic EPSPs that efficiently trigger action potential (AP) output, whereas inputs to distal dendrites are greatly attenuated and may largely modulate AP output. In contrast to most other cortical and hippocampal neurons, hippocampal...
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Several early studies suggested that spikes can be generated in the dendrites of CA1 pyramidal neurons, but their functional significance and the conditions under which they occur remain poorly understood. Here, we provide direct evidence from simultaneous dendritic and somatic patch-pipette recordings that excitatory synaptic inputs can elicit dendritic sodium spikes prior to axonal action pot...
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Potassium channels located in the dendrites of hippocampal CA1 pyramidal neurons control the shape and amplitude of back-propagating action potentials, the amplitude of excitatory postsynaptic potentials and dendritic excitability. Non-uniform gradients in the distribution of potassium channels in the dendrites make the dendritic electrical properties markedly different from those found in the ...
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ژورنال
عنوان ژورنال: eLife
سال: 2014
ISSN: 2050-084X
DOI: 10.7554/elife.04551