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. Author manuscript; available in PMC: 2016 Sep 28.
Published in final edited form as: Perception. 2015 Sep 21;45(1-2):5–31. doi: 10.1177/0301006615602599

Table I.

Comparison of Eccentricities and Densities of Stimuli Used in Some Recent Experiments.

References Eccentricity (deg) dots/deg2 switching point (dots/deg2) Regime
Burr and Ross, Current Biology (2008) 7 0.38 (N = 30) 0.63 (N = 50) Around 0.6 Numerosity
Ross and Burr, Journal of Vision (2010) Central 1 (N = 50) Around 2 Numerosity
Burr et al. Seeing Perceiving (2011) 6 0.5 (N = max 24) Around 1 Numerosity
Morgan et al. Proceedings of Biological Sciences (2014) Central 2.7 (N = 64) Around 2 Texture (near limit)
Dakin et al. Proceedings of the National Academy of Sciences of the United States of America (2011) 6 5.2 (N = 128) Around 1 Clearly texture
Halberda, Mazzocco, and Feigenson Nature (2008)a Central 0.37(N = max 30) Around 2 Numerosity
Tibber et al. Vision Research (2013)a Uncertain 64 Around 1 Near the limit
a

Inferred.