Biomedical Engineering Reference
In-Depth Information
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Figure 9.8
As in
Figure 9.5
,
place-specific spiking activity of a second hippocampal pyramidal
neuron recorded from a rat running back and forth for 400 sec of a 1200 sec ex-
periment on a 300 cm U-shaped track (outset on the right). As in Figure 9.5, the
track has been linearized and plotted in time so that the spiking activity on each pass
can be visualized. The black dots show the spatial locations at which the neuron
discharged a spike. The place field of this neuron extends from approximately 10
to 50 cms. Along with place-specific firing, this neuron is also directional in that it
spikes only as the animal moves from bottom to top (from left to right in the outset)
between 10 to 50 cms. The intensity of spiking increases from the start to the end
of the experiment. In the data analyses we use the spiking activity during the entire
1200 sec.
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