Ring models of binocular rivalry and fusionJournal of Computational Neuroscience - Tập 48 - Trang 193-211 - 2020
Ziqi Wang, Wei Dai, David W. McLaughlin
When similar visual stimuli are presented binocularly to both eyes, one
perceives a fused single image. However, when the two stimuli are distinct, one
does not perceive a single image; instead, one perceives binocular rivalry. That
is, one perceives one of the stimulated patterns for a few seconds, then the
other for few seconds, and so on – with random transitions between the two
percepts. Most ... hiện toàn bộ
Systems-level modeling of neuronal circuits for leech swimmingJournal of Computational Neuroscience - Tập 22 - Trang 21-38 - 2006
M. Zheng, W. O. Friesen, T. Iwasaki
This paper describes a mathematical model of the neuronal central pattern
generator (CPG) that controls the rhythmic body motion of the swimming leech.
The systems approach is employed to capture the neuronal dynamics essential for
generating coordinated oscillations of cell membrane potentials by a simple CPG
architecture with a minimal number of parameters. Based on input/output data
from physio... hiện toàn bộ
Encoding certainty in bump attractorsJournal of Computational Neuroscience - Tập 37 - Trang 29-48 - 2013
Sam Carroll, Krešimir Josić, Zachary P. Kilpatrick
Persistent activity in neuronal populations has been shown to represent the
spatial position of remembered stimuli. Networks that support bump attractors
are often used to model such persistent activity. Such models usually exhibit
translational symmetry. Thus activity bumps are neutrally stable, and
perturbations in position do not decay away. We extend previous work on bump
attractors by constru... hiện toàn bộ
An integrate-and-fire model for synchronized bursting in a network of cultured cortical neuronsJournal of Computational Neuroscience - Tập 21 - Trang 227-241 - 2006
D. A. French, E. I. Gruenstein
It has been suggested that spontaneous synchronous neuronal activity is an
essential step in the formation of functional networks in the central nervous
system. The key features of this type of activity consist of bursts of action
potentials with associated spikes of elevated cytoplasmic calcium. These
features are also observed in networks of rat cortical neurons that have been
formed in culture.... hiện toàn bộ
Normal mode dynamics of voltage-gated K+ channels: gating principle, opening mechanism, and inhibitionJournal of Computational Neuroscience - Tập 38 - Trang 83-88 - 2014
Moshe M. Greenberger, Abraham O. Samson
Voltage-dependent potassium channels open in response to changes in membrane
potential and become partially inactivated upon binding of inhibitors. Here we
calculate normal mode motion of two voltage-dependent K+ channels, KvAP and
Shaker, and their complexes with inhibitors and address the gating principle,
opening mechanism, and inhibition. The normal modes indicate that pore expansion
and chann... hiện toàn bộ
Control of firing patterns by two transient potassium currents: leading spike, latency, bistabilityJournal of Computational Neuroscience - Tập 31 - Trang 117-136 - 2010
Xiangying Meng, Qishao Lu, John Rinzel
Transient potassium currents distinctively affect firing properties,
particularly in regulating the latency before repetitive firing. Pyramidal cells
of the dorsal cochlear nucleus (DCN) have two transient potassium currents, I
Kif and I Kis, fast and slowly inactivating, respectively, and they exhibit
firing patterns with dramatically variable latencies. They show immediate
repetitive firing, or ... hiện toàn bộ
Tuning Neocortical Pyramidal Neurons between Integrators and Coincidence DetectorsJournal of Computational Neuroscience - - 2003
Michael Rudolph, Alain Destexhe
Do cortical neurons operate as integrators or as coincidence detectors? Despite
the importance of this question, no definite answer has been given yet, because
each of these two views can find its own experimental support. Here we
investigated this question using models of morphologically-reconstructed
neocortical pyramidal neurons under in vivo like conditions. In agreement with
experiments we fi... hiện toàn bộ
Frontotemporal dementia patients exhibit deficits in predictive saccadesJournal of Computational Neuroscience - Tập 49 - Trang 357-369 - 2020
Nicolas Deravet, Jean-Jacques Orban de Xivry, Adrian Ivanoiu, Jean-Christophe Bier, Kurt Segers, Demet Yüksel, Philippe Lefèvre
Prediction and time estimation are all but required for motor function in
everyday life. In the context of eye movements, for instance, they allow
predictive saccades and eye re-acceleration in anticipation of a target
re-appearance. While the neural pathways involved are not fully understood, it
is known that the frontal lobe plays an important role. As such, neurological
disorders that affect it... hiện toàn bộ