Journal
JOURNAL OF COMPUTATIONAL NEUROSCIENCE
Volume 14, Issue 2, Pages 185-192Publisher
KLUWER ACADEMIC PUBL
DOI: 10.1023/A:1021906818333
Keywords
dendritic integration; I-A; I-h; CA1; modeling
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Using a realistic model of a CA1 hippocampal pyramidal neuron, we make experimentally testable predictions on the roles of the non-specific cation current, I-h, and the A- type Potassium current, I-A, in modulating the temporal window for the integration of the two main excitatory afferent pathways of a CA1 neuron, the Schaffer Collaterals and the Perforant Path. The model shows that the experimentally observed increase in the dendritic density of I-h and I-A could have a major role in constraining the temporal integration window for these inputs, in such a way that a somatic action potential (AP) is elicited only when they are activated with a relative latency consistent with the anatomical arrangement of the hippocampal circuitry.
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