The EEG is a non-invasive technique recorded on the scalp that often has a poor relationship to t... more The EEG is a non-invasive technique recorded on the scalp that often has a poor relationship to the spiking activity of individual neurons. Measures of the relative contribution of EEG oscillations are particularly useful to investigate the emergent properties of the rhythmic activities of the brain. The EEG records the electrical activity of the brain; sensory stimulation or motor output shows different oscillations bands including theta (∈ [4, 8) Hz), alpha (∈ [8, 13) Hz), beta (∈ [13, 31) Hz), and gamma ranges (∈ [31, 50) Hz). The different rhythms of the brain activity are of functional importance to understand how information is processed in the mammalian brain. In previous works we investigate the hypothesis that neural processes associated with visuomotor integration or imaginary task are related to a higher amount of complexity in certain frequency bands. In order to do so, we used the Bandt-Pompe (BP) permutation methodology for the evaluation of the probability distributio...
Imagined activities could actually be a cognitive basis for creative thinking. However it is stil... more Imagined activities could actually be a cognitive basis for creative thinking. However it is still unknown how they might be related with the architecture of the brain. A recent study has proved the relevance of the imagined activity when investigating neuronal diseases, by comparing variations in the neuronal activity of patients with brain diseases and healthy subjects. One important aspect of the scientific methodologies focused on neuronal diseases is therefore to provide a trustable methodology that could allow us to distinguish between realized and imagined activities in the brain. The electroencephalogram is the result of synchronized action of the cerebrum, and our end is portraying the network dynamics through the neuronal responses when the subjects perform visuomotor and specific imaginary assignments. We use a subtle information theoretical approach accounting for the time causality of the signal and the closeness centrality of the different nodes. More specifically we p...
The EEG is a non-invasive technique recorded on the scalp that often has a poor relationship to t... more The EEG is a non-invasive technique recorded on the scalp that often has a poor relationship to the spiking activity of individual neurons. Measures of the relative contribution of EEG oscillations are particularly useful to investigate the emergent properties of the rhythmic activities of the brain. The EEG records the electrical activity of the brain; sensory stimulation or motor output shows different oscillations bands including theta (∈ [4, 8) Hz), alpha (∈ [8, 13) Hz), beta (∈ [13, 31) Hz), and gamma ranges (∈ [31, 50) Hz). The different rhythms of the brain activity are of functional importance to understand how information is processed in the mammalian brain. In previous works we investigate the hypothesis that neural processes associated with visuomotor integration or imaginary task are related to a higher amount of complexity in certain frequency bands. In order to do so, we used the Bandt-Pompe (BP) permutation methodology for the evaluation of the probability distributio...
Imagined activities could actually be a cognitive basis for creative thinking. However it is stil... more Imagined activities could actually be a cognitive basis for creative thinking. However it is still unknown how they might be related with the architecture of the brain. A recent study has proved the relevance of the imagined activity when investigating neuronal diseases, by comparing variations in the neuronal activity of patients with brain diseases and healthy subjects. One important aspect of the scientific methodologies focused on neuronal diseases is therefore to provide a trustable methodology that could allow us to distinguish between realized and imagined activities in the brain. The electroencephalogram is the result of synchronized action of the cerebrum, and our end is portraying the network dynamics through the neuronal responses when the subjects perform visuomotor and specific imaginary assignments. We use a subtle information theoretical approach accounting for the time causality of the signal and the closeness centrality of the different nodes. More specifically we p...
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Papers by Mauro Granado