Frontiers in Computational Neuroscience RSS Feedhttp://frontiersin.org/computationalneuroscience/RSS feed for the Articles of Frontiers in Computational Neuroscience Journal.On Dynamics of Integrate-and-Fire Neural Networks with Conductance Based Synapses.http://frontiersin.org/computationalneuroscience/paper/10.3389/neuro.10/002.2008/Status : Published<br> Abstract: We present a mathematical analysis of a networks with Integrate-and-Fire neurons with conductance based synapses. Taking into account the realistic fact that the spike time is only known within some finite precision, we propose a model where spikes a...Fri, 04 Jul 2008 00:00:00 +0100Burst firing is a neural code in an insect auditory systemhttp://frontiersin.org/computationalneuroscience/paper/10.3389/neuro.10/003.2008/Status : Accepted<br> Abstract: Various classes of neurons alternate between high-frequency discharges and silent intervals. This phenomenon is called burst firing. To analyze burst activity in an insect system, grasshopper auditory receptor neurons were recorded in vivo for severa...Fri, 27 Jun 2008 00:00:00 +0100Modulating the granularity of category formation by global cortical stateshttp://frontiersin.org/computationalneuroscience/paper/10.3389/neuro.10/001.2008/Status : Accepted<br> Abstract: The unsupervised categorization of sensory stimuli is typically attributed to feedforward processing in a hierarchy of cortical areas. This purely sensory-driven view of cortical processing, however, ignores any internal modulation, e.g., by top-down...Tue, 03 Jun 2008 00:00:00 +0100Long memory lifetimes require complex synapses and limited sparsenesshttp://frontiersin.org/computationalneuroscience/paper/10.3389/neuro.10/007.2007/Status : Published<br> Abstract: Theoretical studies have shown that memories last longer if the neural representations are sparse, that is, when each neuron is selective for a small fraction of the events creating the memories. Sparseness reduces both the interference between store...Fri, 30 Nov 2007 00:00:00 +0000Bilinearity, rules, and prefrontal cortexhttp://frontiersin.org/computationalneuroscience/paper/10.3389/neuro.10/001.2007/Status : Published<br> Abstract: Humans can be instructed verbally to perform computationally complex cognitive tasks; their performance then improves relatively slowly over the course of practice. Many skills underlie these abilities; in this paper, we focus on the particular quest...Fri, 02 Nov 2007 00:00:00 +0000Effects of fixational eye movements on retinal ganglion cell responses: a modelling studyhttp://frontiersin.org/computationalneuroscience/paper/10.3389/neuro.10/002.2007/Status : Published<br> Abstract: Visual response properties of retinal ganglion cells (GCs), the retinal output neurons, are shaped by numerous processes and interactions within the retina. In particular, amacrine cells are known to form microcircuits that affect GC responses in spe...Fri, 02 Nov 2007 00:00:00 +0000The effects of background noise on the neural responses to natural sounds in cat primary auditory cortexhttp://frontiersin.org/computationalneuroscience/paper/10.3389/neuro.10/003.2007/Status : Published<br> Abstract: Animal vocalizations in natural settings are invariably accompanied by an acoustic background with a complex statistical structure. We have previously demonstrated that neuronal responses in primary auditory cortex of halothane-anesthetized cats depe...Fri, 02 Nov 2007 00:00:00 +0000Self-organized critical noise amplification in human closed loop controlhttp://frontiersin.org/computationalneuroscience/paper/10.3389/neuro.10/004.2007/Status : Published<br> Abstract: When humans perform closed loop control tasks like in upright standing or while balancing a stick, their behavior exhibits non-Gaussian fluctuations with long-tailed distributions. The origin of these fluctuations is not known. Here, we investigate i...Fri, 02 Nov 2007 00:00:00 +0000Irregular persistent activity induced by synaptic excitatory feedbackhttp://frontiersin.org/computationalneuroscience/paper/10.3389/neuro.10/005.2007/Status : Published<br> Abstract: Neurophysiological experiments on monkeys have reported highly irregular persistent activity during the performance of an oculomotor delayed-response task. These experiments show that during the delay period the coefficient of variation (CV) of inter...Fri, 02 Nov 2007 00:00:00 +0000Neural circuit dynamics underlying accumulation of time-varying evidence during perceptual decision makinghttp://frontiersin.org/computationalneuroscience/paper/10.3389/neuro.10/006.2007/Status : Published<br> Abstract: How do neurons in a decision circuit integrate time-varying signals, in favor of or against alternative choice options? To address this question, we used a recurrent neural circuit model to simulate an experiment in which monkeys performed a directio...Fri, 02 Nov 2007 00:00:00 +0000 Inhibition potentiates the synchronizing action of electrical synapseshttp://frontiersin.org/computationalneuroscience/paper/10.3389/neuro.10/008.2007/Status : Published<br> Abstract: In vivo and in vitro experimental studies have found that blocking electrical interactions connecting GABAergic interneurons reduces oscillatory activity in the γ range in cortex. However, recent theoretical works have shown that the ability of...Fri, 02 Nov 2007 00:00:00 +0000