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. 2012 Dec 7;7(12):e51383. doi: 10.1371/journal.pone.0051383

Figure 7. The psychometric method of determining perceived heading.

Figure 7

This example is for the visual stimulus in subject #4. Each point represents 2 stimulus presentations. The figure is analogous to Fig. 3 except data from a single subject is shown. Panel A: The reference heading is 45° right. Panel B: The reference heading is 90° right.