منابع مشابه
Correlations Without Synchrony
Peaks in spike train correlograms are usually taken as indicative of spike timing synchronization between neurons. Strictly speaking, however, a peak merely indicates that the two spike trains were not independent. Two biologically plausible ways of departing from independence that are capable of generating peaks very similar to spike timing peaks are described here: covariations over trials in...
متن کاملAchieving Synchrony without Clocks
: unifying synchrony and asynchrony. In Pro-ceedings of the Seventeenth Annual ACM Symposium on Principles of Distributed Computing, pages 143–152, Puerto Vallarta, Mexico, 1998. ACM Press. 24. Jean-François Hermant and Gérard Le Lann. Fast asynchronous uniform consensus in real-time distributed systems. IEEE Transactions on Computers, 51(8):931–944,
متن کاملCorrelations and synchrony in threshold neuron models.
We study how threshold models and neocortical neurons transfer temporal and interneuronal input correlations to correlations of spikes. In both, we find that the low common input regime is governed by firing rate dependent spike correlations which are sensitive to the detailed structure of input correlation functions. In the high common input regime, the spike correlations are largely insensiti...
متن کاملSignatures of Synchrony in Pairwise Count Correlations
Concerted neural activity can reflect specific features of sensory stimuli or behavioral tasks. Correlation coefficients and count correlations are frequently used to measure correlations between neurons, design synthetic spike trains and build population models. But are correlation coefficients always a reliable measure of input correlations? Here, we consider a stochastic model for the genera...
متن کاملSpike Correlations – What Can They Tell About Synchrony?
Sensory and cognitive processing relies on the concerted activity of large populations of neurons. The advent of modern experimental techniques like two-photon population calcium imaging makes it possible to monitor the spiking activity of multiple neurons as they are participating in specific cognitive tasks. The development of appropriate theoretical tools to quantify and interpret the spikin...
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ژورنال
عنوان ژورنال: Neural Computation
سال: 1999
ISSN: 0899-7667,1530-888X
DOI: 10.1162/089976699300016133