1- Humans can recognise visual and auditory stimuli that they have not experienced for decades.
3- These very long term memories require an initial memorisation phase, during which memory strength increases roughly linearly with the number of presentations
4- A few tens of presentations can be enough to form a memory that can last a lifetime.
5- Attention‐related oscillatory brain activity can help store memories efficiently and rapidly
6- Storing such very long-term memories involves the creation of highly selective “Grandmother Cells” that only fire if the original training stimulus is experienced again.
7- The neocortex contains large numbers of totally silent cells (“Neocortical Dark Matter”) that constitute the long-term memory store.
8- Grandmother Cells can be produced using simple spiking neural network models with Spike‐ Time Dependent Plasticity (STDP) and competitive inhibitory lateral connections
9- This selectivity only requires binary synaptic weights that are either “on” or “off”, greatly simplifying the problem of maintaining the memory over long periods.
10- Artificial systems using memristor-like devices can implement the same principles, allowing the development of powerful new processing architectures that could replace conventional computing hardware