Exploring spike transfer through the thalamus using hybrid artificial-biological neuronal networks [0.03%]
Damien Debay,Jakob Wolfart,Yann Le Franc et al.
Damien Debay et al.
We use dynamic clamp to construct "hybrid" thalamic circuits by connecting a biological neuron in situ to silicon- or software-generated "neurons" through artificial synapses. The purpose is to explore cellular sensory gating mechanisms tha...
Michael Rudolph,Alain Destexhe
Michael Rudolph
During intense network activity in vivo, cortical neurons are in a high-conductance state, in which the membrane potential (V(m)) is subject to a tremendous fluctuating activity. Clearly, this "synaptic noise" contains information about the...
Competitive spiking and indirect entropy minimization of rate code: efficient search for hidden components [0.03%]
Botond Szatmáry,Barnabás Póczos,András Lorincz
Botond Szatmáry
Our motivation, which originates from the psychological and physiological evidences of component-based representations in the brain, is to find neural methods that can efficiently search for structures. Here, an architecture made of coupled...
Self-regulation of local brain activity using real-time functional magnetic resonance imaging (fMRI) [0.03%]
Nikolaus Weiskopf,Frank Scharnowski,Ralf Veit et al.
Nikolaus Weiskopf et al.
Functional magnetic resonance imaging (fMRI) measures the blood oxygen level-dependent (BOLD) signal related to neuronal activity. So far, this technique has been limited by time-consuming data analysis impeding on-line analysis. In particu...
Transient information flow in a network of excitatory and inhibitory model neurons: role of noise and signal autocorrelation [0.03%]
Julien Mayor,Wulfram Gerstner
Julien Mayor
We investigate the performance of sparsely-connected networks of integrate-and-fire neurons for ultra-short term information processing. We exploit the fact that the population activity of networks with balanced excitation and inhibition ca...
The selectivity of canary HVC neurons for the Bird's Own Song: rate coding, temporal coding, or both? [0.03%]
Chloé Huetz,Catherine Del Negro,Katia Lehongre et al.
Chloé Huetz et al.
The neuronal selectivity observed in the avian song system for the Bird's Own Song progressively emerged as an extraordinary fruitful model to investigate the neural code underlying the recognition of complex stimuli and the occurrence of l...
Temporal codes and sparse representations: a key to understanding rapid processing in the visual system [0.03%]
Rudy Guyonneau,Rufin Vanrullen,Simon J Thorpe
Rudy Guyonneau
Where neural information processing is concerned, there is no debate about the fact that spikes are the basic currency for transmitting information between neurons. How the brain actually uses them to encode information remains more controv...
Learning-induced modulation of oscillatory activities in the mammalian olfactory system: the role of the centrifugal fibres [0.03%]
Claire Martin,Rémi Gervais,Pascal Chabaud et al.
Claire Martin et al.
In the mammalian olfactory system, oscillations related to odour representation have been described in field potential activities. Previous results showed that in olfactory bulb (OB) of awake rats engaged in an olfactory learning, odour pre...
James Schummers,Jorge Mariño,Mriganka Sur
James Schummers
Networks of neurons in the cerebral cortex generate complex outputs that are not simply predicted by their inputs. These emergent responses underlie the function of the cortex. Understanding how cortical networks carry out such transformati...
Paul H Tiesinga,Jean-Marc Fellous,Emilio Salinas et al.
Paul H Tiesinga et al.
Recordings from area V4 of monkeys have revealed that when the focus of attention is on a visual stimulus within the receptive field of a cortical neuron, two distinct changes can occur: The firing rate of the neuron can change and there ca...