Connectionists: How many bits can you store at a synapse?

[Terry Sejnowski]

http://biorxiv.org/content/early/2015/03/11/016329

Hippocampal Spine Head Sizes are Highly Precise

Thomas M Bartol, Cailey Bromer, Justin P Kinney, 
Michael A Chirillo, Jennifer N Bourne, Kristen M Harris, 
Terrence J Sejnowski

The precision of synaptic weights is thought to be only
a few bits.  By analyzing pairs of synapses from 
one axon onto the same dendrite we found that the 
precision was suprisingly high.

Terry

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