One of the characteristics of brain activity is that its function is always associated with considerable amounts of “noise.” Noise is present at all levels, from the gating of single ion channels up to large-scale brain activity as seen, for instance, in electroencephalogram (EEG) signals. In this book, we will explore the presence of noise and its physiological role. Across the different chapters, we will see that noise is not a signal representing a nuisance, but that it can have many advantageous consequences for the computations performed by single neurons and, perhaps, also by neuronal networks. By using experiments, theory and computer simulations, we will explore the possibility that “noise” might indeed be an integral component of brain computations.
KeywordsNoise Source Shot Noise Stochastic Resonance Intracellular Recording Integrative Property
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