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. Author manuscript; available in PMC: 2017 Jan 1.
Published in final edited form as: Brain Stimul. 2015 Sep 9;9(1):117–123. doi: 10.1016/j.brs.2015.08.018

Figure 2.

Figure 2

Frequency map plasticity in primary auditory cortex. Each polygon represents a single electrode penetration. The characteristic frequency (CF) of each site is indicated in kHz. The red color indicates that the value of the CF is between 8 and 16 kHz. Representative frequency map from a naïve rat (A). Representative frequency map from a rat that received 1.6 mA VNS (B), 0.8 mA VNS (C) or 0.4 mA VNS (D) paired with 9 kHz tones. Moderate VNS-tone pairing reorganizes the frequency map, but intense VNS-tone pairing does not. The scale bar indicates a distance of 0.5 mm. Anterior is shown to the left and dorsal is down.