Mean WM estimates in Experiment 1, Kc_det,
Ki_iden, and Ki_loc, as a function of array
size and task type. In the subscript, c_det stands for the Cowan model coupled with
the change-detection task, i_iden for the ideal-responder model with the
identity-recognition task and i_loc for the ideal-responder model with the
location-recognition task. The error bars indicate standard errors of the mean.