Table 3 Parameters obtained by performing LAM fits to the data collected in the orientation control experiment (Fig. 4a).

From: The equivalent internal orientation and position noise for contour integration

Observer log2 β − log2 β ideal log2 σ int (degrees) RMSe
S1 −0.29 ± 0.53 2.8 ± 0.8 0.04
S2 −1.17 ± 0.41 1.2 ± 0.7 0.45
S4 −0.69 ± 0.44 1.6 ± 0.9 0.58
S6 −1.03 ± 0.38 0.7 ± 0.9 0.75
S7 −1.30 ± 0.44 0.0 ± 1.1 0.21
Mean −0.90 ± 0.18 1.2 ± 0.5  
  1. In linear units, the mean equivalent internal noise is 2.4°. The efficiency is 54% of the ideal observer.