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Prior studies of multichannel ECoG from animals showed that beta and gamma oscillations carried perceptual information in both local and global spatial patterns of amplitude modulation, when the subjects were trained to discriminate conditioned stimuli (CS). Here the hypothesis was tested that similar patterns could be found in the scalp EEG human subjects(More)
This article deals with efficiency improvement and how to identify appropriate benchmarks for inefficient firms to imitate. We argue that the most relevant benchmark is the most similar efficient firm. Having interpreted similarity in terms of input endowments, the problem reduces to find the closest reference firm on the efficient subset of the isoquant.(More)
In this paper we describe a method to establish when a symplectic 6-manifold M with semi-free Hamiltonian S 1-action is unique up to isomor-phism (equivariant symplectomorphism). This method will rely on a study of the symplectic geometry of the reduced spaces and a gluing procedure along regular levels. We prove that if the reduced spaces satisfy a(More)
Obtaining an ECoG signal requires an invasive procedure in which brain activity is recorded from the cortical surface. In contrast, obtaining EEG recordings requires the non-invasive procedure of recording the brain activity from the scalp surface, which allows EEG recordings to be performed more easily on healthy humans. In this work, a technique(More)
In this paper, a novel bionic model and its performance in pattern recognition are presented and discussed. The model is constructed from a bulb model and a three-layered cortical model, mimicking the main features of the olfactory system. The olfactory bulb and cortex models are connected by feedforward and feedback fibers with distributed delays. The(More)
We prove a quantum version of Kalkman's wall-crossing formula [34], [41] comparing intersection pairings on geometric invariant theory (git) quotients related by a change in polarization, under certain stable=semistable assumptions. The formula is the same, but each expression in the formula is quantized in the sense that it is replaced by an integral over(More)