Figure 2
Behavioral and modeling results. For each of five experiments, temporal context, behavioral performance, and predicted performance are shown (left, middle, and right columns, respectively). Trial sequences were composed of 'recurring objects' (types A-F) distinguished by their temporal context. Error bars refer to the 95% confidence intervals (α = 0.05) for binomially distributed data. In (b)-(e), recurring objects were intermixed with 'one-time objects'. Type A objects were preceded by a one-time object and followed by one particular other recurring object (probability 100%). Type B objects were preceded by one particular other recurring object (probability 100%) and followed by a one-time object. Type C objects were preceded (followed) by one-time objects (probability 50%) and by each of several other recurring objects (cumulative probability 50%). Type D objects were preceded (followed) by one-time objects (probability 50%) and by one particular other recurring object (probability 50%). Type E objects were preceded by a one-time object and followed by each of four other recurring objects (probability 25%). Type F objects were preceded by each of four other recurring objects (probability 25%) and followed a one-time object. The relative informativeness of the temporal contexts is given in Table 1. (a) Eight objects appeared seven times each, in either deterministic or random sequences. In deterministic sequences, each object was preceded (followed) seven times (100% probability) by one particular of the other seven objects. In random sequences, each object was preceded (followed) once (14% probability) by each of the seven other objects. (b) Eight recurring objects (2 type A, 2 type B, and 4 type C) appeared six times each, intermixed with one-time objects. (c) Sixteen recurring objects (4 type A, 4 type B, and 8 type C) appeared 14 times each. (d) Ten recurring objects (5 type C and 5 type D) appeared eight times each. (e) Sixteen recurring objects (4 each of types A, B, E, and F) appeared 8 times each.