Three systems of memory and how they are connected to the notion of learning

The processes of encoding, storage and retrieval in the separate Memory Processes section

known as the levels-of-processing model was proposed by Fergus Craik and Robert Lockhart in 1972, and posits that memory retrieval, and the extent to which something is memorized, is a function of the depth of mental processing, on a continuous scale from shallow to deep. Under this model, there is no real structure to memory and no distinction between short-term and long-term memory.