memory retention
Technical term used in psychology, neuroscience, and education to refer to the ability to retain information over time.
Sleep plays an important role in memory retention.
In this experiment, we measured the subjects' memory retention rate.
記憶力 refers to the general capacity or power of memory, while 記憶保持 specifically refers to the process or state of retaining memories.
Compound of 記憶 (memory) and 保持 (retention, holding). A straightforward Sino-Japanese technical term.