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. Author manuscript; available in PMC: 2013 Dec 5.
Published in final edited form as: J Neurosci. 2013 Jun 5;33(23):9635–9643. doi: 10.1523/JNEUROSCI.4612-12.2013

Figure 1.

Figure 1

Stimuli and experimental protocol. CFS stimuli were presented for 1.5 sec, followed by an intertrial interval (4.5–7.5 sec). Left, target and mask presented to the same eye. Middle, target and mask presented to different eyes. Right, mask only (no target). Stimuli were presented to the two eyes on a split screen. Binocular fusion was achieved with the use of converging prisms. The checkerboard-textured frames and the stream of letters were identical in the two eyes, assisting fusion. The resulting fused precept was of a centered single frame with a single letter stream to the left of the frame’s center. Subjects were instructed to fixate the letters. The letters in the figure are presented at a larger scale than the rest of the figure to enhance their visibility.