Time-scale invariance as an emergent property in a perceptron with realistic, noisy neurons

摘要: In most species, interval timing is time-scale invariant: errors in time estimation scale up linearly with the estimated duration. mammals, invariance ubiquitous over behavioral, lesion, and pharmacological manipulations. For example, dopaminergic drugs induce an immediate, whereas cholinergic a gradual, scalar change timing. Behavioral theories posit that derives from particular computations, rules, or coding schemes. contrast, we discuss simple neural circuit, perceptron, whose output neurons fire clockwise fashion based on pattern of coincidental activation its input neurons. We show numerically emerges spontaneously perceptron realistic neurons, presence noise. Under assumption modulate firing memory representation criterion time, reproduces clock patterns, their invariance, These results suggest rather than being signature higher order cognitive processes specific computations related to timing, may emerge massively connected brain intrinsic noise circuits, thus providing simplest explanation for ubiquity