Title
Optimal stimulation protocol in a bistable synaptic consolidation model.
Abstract
Synaptic changes induced by neural activity need to be consolidated to maintain memory over a timescale of hours. In experiments, synaptic consolidation can be induced by repeating a stimulation protocol several times and the effectiveness of consolidation depends crucially on the repetition frequency of the stimulations. We address the question: is there an understandable reason why induction protocols with repetitions at some frequency work better than sustained protocols-even though the accumulated stimulation strength might be exactly the same in both cases? In real synapses, plasticity occurs on multiple time scales from seconds (induction), to several minutes (early phase of long-term potentiation) to hours and days (late phase of synaptic consolidation). We use a simplified mathematical model of just two times scales to elucidate the above question in a purified setting. Our mathematical results show that, even in such a simple model, the repetition frequency of stimulation plays an important role for the successful induction, and stabilization, of potentiation.
Year
DOI
Venue
2019
10.3389/fncom.2019.00078
FRONTIERS IN COMPUTATIONAL NEUROSCIENCE
Keywords
DocType
Volume
synaptic consolidation,plasticity,LTP,stimulation frequency,bistability
Journal
13
ISSN
Citations 
PageRank 
1662-5188
0
0.34
References 
Authors
0
3
Name
Order
Citations
PageRank
Chiara Gastaldi100.34
Samuel P. Muscinelli201.01
Wulfram Gerstner32437410.08