Cell Assemblies

One of the basic hypotheses of our research group, is Hebb's Cell Assembly (CA) hypothesis from 1949.
The neural basis of a concept is a Cell Assembly
A CA is a group of neurons that has high mutual synaptic strength.
This enables the CA to reverberate after the external stimuli that ignited it ceases. A CA is short-term or working memory.
The CA is formed by the neurons being co-active.
Hebbian learning (synaptic weight between co-active neurons increases) allows the CA to self-organise.
CA formation is long-term memory.
A CA is an auto-associative memory, a categoriser, and an attractor state.
Auto-associative memories are not what most people think of when they think of associative memories.
Instead, associative memories are multi-associative. Memories are associated with a lot of other memories.