Stimulus => Sensory Memory => Working Memory => Long-Term Memory
If you want to sharpen your mental ability, you should train your working memory.
Train your working memory with NBack.
*NBack:The current answer matches the one from N steps earlier in the sequence.
NBack for iPad Lite is Lite Version of NBack for iPad.
Full Version: 1Back --- 10Back
Lite Version: 1Back --- 2Back