Interference model of forgetting. (1-D) For the one-dimensional (1D) version of the model, each item is represented as a colored vertical bar. The height of the bar corresponds to the valence of the item. The top row bars above the black line represent items that are stored in memory just before the acquisition of a new item, shown at the right (sample). All the items that have smaller valence (bar height) than the new item are discarded from memory (crossed by red bar), and the new item is added. The bottom row represents the memory content after the new memory is acquired. (2-D) Same as in 1-D, but each memory item has two valence dimensions, represented by the width and height of a rectangle. In this case, all the items that have both valence dimensions smaller than the corresponding dimensions of the new item are discarded.
