The authors regret errors in the reported subject numbers and values for the illusion size in the data for individual subjects. This affects experiments Ia, Ib, II, and IIa. This mistake does not affect any of the conclusions of the paper since the reported mean values and standard errors were all correct. Correct values for the illusion size in the N individual subjects for each experiment are as follows:
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E Ia (N = 11):
4.13° 4.69° 0.30° 2.08° 4.70° 1.11° 4.15° 1.93° 4.37° 1.27° 4.16°
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E Ib (N = 9):
0.17° −0.03° 0.13° 0.42° 0.25° 0.09° −0.04° −0.14° 0.06°
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E II (N = 10):
3.83° 3.16° 1.91° 4.76° 4.59° 4.33° 4.45° 4.71° 5.07° 0.26°
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E IIa (N = 10):
4.12° 3.33° 0.43° 4.69° 4.26° 4.91° 4.33° 4.36° 3.36° 0.55°
Conflict of interest statement
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.