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Figure 5 | BMC Neuroscience

Figure 5

From: The relationship between magnetic and electrophysiological responses to complex tactile stimuli

Figure 5

An example of the rate effect in LFP and MUA recordings. For MUA recordings, the same threshold was set for all trials recorded from the same cortical site. A spike was counted when the voltage was over the threshold level within a 1 ms bin. In A, raster plots of raw MUA data were collected over 100 trials from a single recording site, which is at the depth of 4000 μm in the central sulcus. Each dot represents a single spike. B shows the average LFP waveforms over 100 trials in the first 40 ms after the onset of the stimulus (as shown in the grey box in the inset LFP waveform at 2s ISI) at each stimulation rate recorded from this site. C shows the post-stimulus time histograms of the same data used in A. The green, red and blue lines in B and bars in C represent data at 0.33s, 1s and 2s ISIs respectively.

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