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. Author manuscript; available in PMC: 2013 Jan 1.
Published in final edited form as: Vision Res. 2011 Oct 23;52(1):11–19. doi: 10.1016/j.visres.2011.10.004

Figure 1.

Figure 1

Stimulus for each task. a) Motion coherence task, for which a proportion of the dots moved coherently (3 – 67%), and subjects discriminated the direction of these coherent dots (upward vs. downward). b) Fine direction-of-motion task, for which 67% of the dots moved coherently, and subjects discriminated their direction (tilted leftward vs. rightward of downward motion). c) Orientation task, for which a static 1% contrast sinusoidal grating was presented and subjects discriminated its orientation (tilted slightly to the left or right of vertical).