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Makarov, Valeri A. ; Castellanos, Nazareth P. ; Malmierca, Eduardo ; Núñez, Ángel | American Physiological Society | 2007Precise and reproducible spike timing is one of the alternatives of the sensory stimulus encoding. We test coherence (repeatability) of the response patterns elicited in projecting gracile neurons by tactile stimulation and its modulation provok[...]texto impreso
Makarov, Valeri A. ; Castellanos, Nazareth P. | World Academy of Science, Engineering & Technology | 2006Statistical analysis of electrophysiological recordings obtained under, e.g. tactile, stimulation frequently suggests participation in the network dynamics of experimentally unobserved "hidden" neurons. Such interneurons making synapses to exper[...]texto impreso
Makarov, Valeri A. ; Malmierca, Eduardo ; Castellanos, Nazareth P. ; Núñez-Medina, Alberto ; Núñez, Ángel | Blackwell Publishing | 2009-08We have studied the role of the temporal correlation of multiple cell discharges in the facilitation of the somatosensory information transmission from the gracilis nucleus to the primary somatosensory (SI) cortex in anesthetized rats. Pairs of [...]texto impreso
Independent component analysis (ICA) has been proven useful for suppression of artifacts in EEG recordings. It involves separation of measured signals into statistically independent components or sources, followed by rejection of those deemed ar[...]texto impreso
Makarov, Valeri A. ; Castellanos, Nazareth P. ; Patane, Luca ; Velarde, Manuel G. | Spie-Int Soc Optical Engineering | 2007Common design of a robot searching for a target emitting sensory stimulus (e.g. odor or sound) makes use of the gradient of the sensory intensity. However, the intensity may decay rapidly with distance to the source, then weak signal-to-noise ra[...]texto impreso
Makarov, Valeri A. ; Castellanos, Nazareth P. ; Velarde, Manuel G. | World Academy of Science, Engineering & Technology | 2006In order to answer the general question: "What does a simple agent with a limited life-time require for constructing a useful representation of the environment?" we propose a robot platform including the simplest probabilistic sensory and motor [...]texto impreso
Makarov, Valeri A. ; Schmidt, Kerstin E. ; Castellanos, Nazareth P. ; Innocenti, Giorgio M. ; López-Aguado, Laura | Oxford University Press | 2008-08To study how the visual areas of the 2 hemispheres interact in processing visual stimuli we have recorded local field potentials in the callosally connected parts of areas 17 and 18 of the ferret during the presentation of 3 kinds of stimuli: 2.[...]
