Onset dominance results.

<p>A) Representative data is shown for one subject to illustrate perceptual dominance for each stimulus presentation for both baseline and the corresponding eye-of-presentation blocks from <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0018978#s2" target="_blank">Experiment 1</a> for observer S4. Onset dominance is shown for each 1-second trial in the five testing blocks conducted. Each arc in the eight wedges represents a single presentation in that location, with successive trials represented by an arc one step farther from the center. In the final column, individual presentation data is then averaged, with each circle representing the frequency of the red or green target dominance in each location across the five testing blocks. B) Averaged data shown for all five observers (S1–S5). Baseline: Results of baseline trials show a location-specific bias for red or green targets. <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0018978#s2" target="_blank">Experiment 1</a>: When the brightness of respective green targets were equated to red the onset bias pattern changes and tends to strengthen. When the eye of presentation is reversed, results show reversal in the onset dominance patterns.