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. 2010 Sep 3;5(9):e12574. doi: 10.1371/journal.pone.0012574

Figure 3. Frequency analysis of response to CS stimuli.

Figure 3

Results for horizontal motion (x) are shown on the left and for vertical motion (y) on the right. The top panels show results for path 3, the results for path 4 being shown below. The results are the mean ±1 SD for all 6 subjects, the traces in each panel depicting from top to bottom the phase and gain of eye velocity with respect to target velocity and the amplitude (on a logarithmic scale) of target velocity (black) and eye velocity. Results when the motion along the other axis followed a CS profile are shown in red and the corresponding results for the SS profile are shown in cyan. Note that the phase decreases consistently from a small lead at 0.22 Hz to a lag of about 180° at 3 Hz.