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Orientation Tuning of Input Conductance, Excitation, and Inhibition in Cat Primary Visual Cortex
- J. NEUROPHYSIOL
, 2000
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Visibility of synaptically induced conductance changes: Theory and simulations of anatomically characterized cortical pyramidal cells
- J Neurosci
, 1990
"... A recent report has provided evidence that there are no significant increases in the neuronal input conductance dur-ing the response of cortical cells in cat visual cortex to non-preferred visual stimuli (Douglas et al., 1988). A criticism of experiments of this kind is that changes in the membrane ..."
Abstract
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A recent report has provided evidence that there are no significant increases in the neuronal input conductance dur-ing the response of cortical cells in cat visual cortex to non-preferred visual stimuli (Douglas et al., 1988). A criticism of experiments of this kind is that changes in the membrane conductance occurring in the dendritic tree may not be vis-ible from electrodes that impale the soma. Our paper de-scribes theoretical and numerical results concerning the vis-ibility of synaptically induced conductance changes from intracellular electrodes, in both ideal and anatomically well-characterized cortical neurons. Based on earlier work by Rall (1967), we here derive the-oretical expressions for the change in input conductance at any location in a passive dendritic tree resulting from acti-vation of a single synapse and obtain bounds for the effects
