Table 2.

Fitted values for biases (μ) and internal noise (σ) in the Ebbinghaus Circles Experiment (Case 4). The units are Weber Fractions of circle radius (100*Δr/r)where Dr is the difference in radius between the two comparison stimuli

Subject	μ context S/S	μ context S/L	μ context L/S	σ
MM	0.49	−2.136	3.56	2.89
NN	0.20	−13.84	12.25	8.10