2.2 Consolidation
Across the studies reviewed here, a memory is not stored once and left alone. It is replayed during sleep and slowly rewritten into cortical networks (Müller & Pilzecker, 1900; Squire et al., 2015).
That two-stage account is the thread carried from section 2.1, where the early models first split storage from retrieval. The evidence here extends it rather than replacing it.