Figure 6.

Interval dependent in postsynaptic response in layer 6. For four sustained (blue) and two transient (red), the postsynaptic currents generated within layer 6 were calculated from thalamic spikes with preceding intervals of 5–20 ms, 20–250 ms, 250–500 ms, or 500–3000 ms. Amplitude values were normalized against the values generated by spikes with the longest (500–3000). As is seen in layer 4, after short preceding intervals, the postsynaptic responses in layer 6 are more strongly reduced in sustained neurons than in transient neurons.