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. Author manuscript; available in PMC: 2013 Jul 1.
Published in final edited form as: Vision Res. 2012 May 23;64:26–34. doi: 10.1016/j.visres.2012.05.008

Fig. 7.

Fig. 7

Hypothetical simulation of perceived crowd heading based on narrowed channel tuning near the category boundary. Channel narrowing produced a good fit to the data. (a and b) With narrowing near the category boundary, the 24°-tuned channel (the dotted line) would respond more strongly than the 6°-tuned channel (the dashed line), and would pull the mean of the population response (the gray vertical line in panel b) away from the actual mean of the crowd (the black vertical line in panel b) and the category boundary. (c) Simulated crowd perception errors (open circles) provided an excellent fit to the pattern of errors from Experiment 3 (black line). Crowd heading is depicted in this panel using a single walker.