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Almost all processes that are quantified in neurobiology are stochastic and nonstationary. Conventional methods that characterize these processes to provide a meaningful and precise description of complex neurobiological phenomenon may be insufficient. Here, we report on the use of the data-driven empirical mode decomposition (EMD) method to study neuronal activity in visual cortical area V4 of macaque...
It was recently observed that neurons in area V4 exhibited enhanced gamma band (35–90Hz) synchronization when monkeys attended to a visual stimulus as compared to when they were not attending to the same stimulus (Science 291 (2001) 1560). Spike-triggered averaging of local field potentials (LFPs) was used to show attentional modulation in an early period from 50 to 150ms after stimulus onset (Science...
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