In the Brown, Preece, and Hulme hypothesis, the movement of oscillators codes for the passage of time, such that they would be in a certain state as each target item was presented. As in the basic control-node approach, activity moves down through the various control states, associating each new item with the current temporal state. In this approach, order errors (i.e. transpositions of items) can be explained as follows. The oscillators move at different rates to keep track of different aspects of the passage of time. This approach parallels the situation with the two (and sometimes three) hands of a clock. The large, hour hand notes relatively extended periods of time (two o’clock, three o’clock, etc.), while the small hand notes subdivisions of those longer stretches, such as minutes, and the second hand even smaller subdivisions. In the present model, four oscillators work to provide a unique control state or “learning context” to which the current item will be associated during learning. In fact 20 context states are developed to represent the time state obtaining as each new item is learned.