Brain Waves Create Archives of Experience and Expectation

This article

Title = {The Day-After Effect: Long Term, Hebbian-Like Restructuring of Resting-State fMRI Patterns Induced by a Single Epoch of Cortical Activation},
Author = {Harmelech, Tai and Preminger, Son and Wertmam, Eliahu and Malach, Rafael},
Journal = {Journal of Neuroscience},
Month = {May},
Number = {22},
Pages = {9488-9497},
Volume = {33},
Year = {2013},
Bdsk-Url-1 = {}

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strongly suggests the existence of long-lasting eligibility traces. The reverberating activity is observed to last up to 24 hours, a significantly longer time span in comparison to the few seconds time constant of the chemical traces  I’ve  modelled in my recent papers: and

Reverberating activity could in effect be a higher order type of trace, and  could prove fundamental in the solution of distal reward problems and learning.


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