p442fig12.40 Given the hypothesis in Figure 12.39 (right column, bottom row) and a generalized concept of steady, albeit possibly decreasing, attention to each item as it is stored in working memory, only a primacy, or bowed gradient of activity across the working memory items can be stored.<BR>||  LTM Invariance + Normalization.  (... given conditions ...) Then the x(i) can ONLY form: [primacy gradient, recency gradient, unimodal bow]