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. Author manuscript; available in PMC: 2012 Aug 24.
Published in final edited form as: Vision Res. 2008 Nov 26;49(2):228–236. doi: 10.1016/j.visres.2008.10.015

Figure 7.

Figure 7

Directional microsaccade rate in three conditions (“invisible”, “visible” and “physical disappearance”). The directional rate was calculated in a window of 100 ms width moving in 1 ms steps as the difference between the rate of microsaccades directed upwards and the rate of microsaccades in the opposite direction. The figure shows the average directional microsaccade rates as a function of time. Shadows around the means indicate between-monkey confidence bands of ±1 SEM (n = 3). The horizontal dashed line represents the level of zero. The vertical red line represents the time stamp of surround onset. A positive value corresponds to the higher rate of upward microsaccades. A zero directional rate indicates that the rates of microsaccades in both directions are equal.