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. Author manuscript; available in PMC: 2011 Jan 1.
Published in final edited form as: J Neurosci. 2010 Jul 28;30(30):9990–10005. doi: 10.1523/JNEUROSCI.0807-10.2010

Figure 7. Cortical responses to simple transformations of tactile stimulus patterns.

Figure 7

A. Deflection pattern inspired from naturalistic deflections (Low Contrast (LC)), along with the associated PSTH response of a single cortical cell over a 650 ms interval taken from the middle of a longer 6 second segment. All PSTHs in this figure share the same vertical scale. B. A High Contrast (HC) version of the stimulus was created by scaling the LC sequence by a factor of four. The HC response (gray) for the same cortical neuron is shown, along with the LC response for comparison (black, inverted scale). C. The Time Compressed (TC) stimulus was created by compressing the time axis of the LC sequence by a factor of three, without altering the instantaneous velocities. The cortical response to the TC stimulus is shown (gray), along with the LC response (black, inverted scale) for comparison. Note the different timescale of the two traces.