Navegação Ciências Exatas e da Terra por Autor "Idiart, Marco Aurelio Pires"
Resultados 1-9 de 9
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Concatenated retrieval of correlated stored information in neural networks
(2006) [Artigo de periódico]We consider a coupled map lattice defined on a hypercube in M dimensions, taken here as the information space, to model memory retrieval and information association by a neural network. We assume that both neuronal activity ... -
Effective recommendations towards healthy routines to preserve mental health during the COVID-19 pandemic
(2022) [Artigo de periódico]Objective: To assess the adherence to a set of evidence-based recommendations to support mental health during the coronavirus disease 2019 (COVID-19) pandemic and its association with depressive and anxiety symptoms. ... -
How the brain represents language and answers questions? : using an AI system to understand the underlying neurobiological mechanisms
(2019) [Artigo de periódico]To understand the computations that underlie high-level cognitive processes we propose a framework of mechanisms that could in principle implement START, an AI program that answers questions using natural language. START ... -
Information space dynamics for neural networks
(2002) [Artigo de periódico]We propose a coupled map lattice defined on a hypercube in M dimensions, the information space, to model memory retrieval by a neural network. We consider that both neuronal activity and the spiking phase may carry ... -
Internal cholinergic regulation of learning and recall in a model of olfactory processing
(2016) [Artigo de periódico]In the olfactory system, cholinergic modulation has been associated with contrast modulation and changes in receptive fields in the olfactory bulb, as well the learning of odor associations in olfactory cortex. Computational ... -
Maturation of pyramidal cells in anterior piriform cortex may be sufficient to explain the end of early olfactory learning in rats
(2020) [Artigo de periódico]Studies have shown that neonate rodents exhibit high ability to learn a preference for novel odors associated with thermotactile stimuli that mimics maternal care. Artificial odors paired with vigorous strokes in rat pups ... -
Retrieval-time properties of the Little-Hopfield model and their physiological relevance
(2005) [Artigo de periódico]We perform an extensive numerical investigation on the retrieval dynamics of the synchronous Hopfield model, also known as Little-Hopfield model, up to sizes of 218 neurons. Our results correct and extend much of the early ... -
Rupture of a liposomal vesicle
(2004) [Artigo de periódico]We discuss pore dynamics in osmotically stressed vesicles. A set of equations which govern the liposomal size, internal solute concentration, and pore diameter is solved numerically. We find that dependent on the internal ... -
The maturational characteristics of the GABA input in the anterior piriform cortex may also contribute to the rapid learning of the maternal odor during the sensitive period
(2020) [Artigo de periódico]During the first ten postnatal days (P), infant rodents can learn olfactory preferences for novel odors if they are paired with thermo-tactile stimuli that mimic components of maternal care. After P10, the thermo-tactile ...
