Fig. 7.
The time jitter in peak firing rate of LGMD and DCMD corresponds to a fixed angular error in the encoding of θthres. A, The two horizontal dotted lines show a fixed error (independent of l/‖v‖) in the encoding of θthres (indicated withcrosses) by the peak firing rate of LGMD and DCMD. This translates in the time domain to increasingly wide time windows Δtthres for the jitter in peak firing rate as l/‖v‖ increases. The value of Δθthresdepicted in this example, 6.2°, corresponds to ±1 SD in Figure4A (i.e., Δθthres = 2 · ςθthres according to the linear fit depicted inB below). B, The SD of the peak firing time shown in Figure 4A has been replotted as a function of l/‖v‖ and fitted with Equation 8. The correlation coefficient between l/‖v‖ and ςtpeak is equal to 0.92, consistent with the prediction made by Equation 7. Corresponding angular error obtained from Equation 9: ςθthres = 3.1°.