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Dependence of EPSP efficacy on synapse location in neocortical pyramidal neurons

Williams, Stephen; Stuart, Gregory J


Neurons receive thousands of synaptic inputs throughout elaborate dendritic trees. Here we determine the somatic impact of excitatory postsynaptic potentials (EPSPs) generated at known dendritic sites in neocortical pyramidal neurons. As inputs became more distal, somatic EPSP amplitude decreased, whereas use-dependent depression increased. Despite marked attenuation (>40-fold), when coactivated within a narrow time window (∼10 milliseconds), distal EPSPs could directly influence action...[Show more]

CollectionsANU Research Publications
Date published: 2002
Type: Journal article
Source: Science
DOI: 10.1126/science.1067903


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