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. 2008 May 7;28(19):5018–5028. doi: 10.1523/JNEUROSCI.4726-07.2008

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Copyright © 2008 Society for Neuroscience 0270-6474/08/285018-11$15.00/0

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Figure 2. — Laminar profile of postsynaptic impact and thalamocortical axonal latency are related to the sustained/transient distinction. A1, B1, Depth profiles of spike-triggered CSDs from a transient (A1) and sustained (B1) LGNd cell. These cells were simultaneously studied, and both provided a monosynaptic input to V1 that was recorded on the same 16-channel probe. Note the shorter latency of the transient cell that generated a postsynaptic response deep within layer 4 compared with the sustained cell that generated a response more superficially. A2, B2, Poststimulus time histograms from these LGNd cells resulting from maintained stimulation of their receptive field centers. C, The receptive fields of both the sustained (blue) and transient (red) neuron were very well aligned with the cortical probe (black). D, The frequency distribution of axonal latencies for both sustained (blue) and transient (red) neurons from subsample A.