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. 2019 Jan 4;12:62. doi: 10.3389/fnsys.2018.00062

Figure 2.

Figure 2

Joint probability density function for LFP variance (LM) and rat speed, for rat r539♂-maurer. The dashed line is a best-fit analytical expression (v1cm/s)=alog10(V1 mV2)+b, with a = 0.18 and b = − 0.04. Dots represent individual realizations (1-s time segments of the LFP recording, section 2). The relation between variance and speed follows the Weber-Fechner law of stimulus perception (Fechner, 1860; Weber, 1860).