A disinhibitory circuit mechanism explains a general principle of peak performance during mid-level arousal
Perceptual decision-making is highly dependent on the momentary arousal state of the
brain, which fluctuates over time on a scale of hours, minutes, and even seconds. The …
brain, which fluctuates over time on a scale of hours, minutes, and even seconds. The …
Optimal heterogeneity for coding in spiking neural networks
JF Mejias, A Longtin - Physical Review Letters, 2012 - APS
The effect of cellular heterogeneity on the coding properties of neural populations is studied
analytically and numerically. We find that heterogeneity decreases the threshold for …
analytically and numerically. We find that heterogeneity decreases the threshold for …
Functional subtypes of synaptic dynamics in mouse and human
Synapses preferentially respond to particular temporal patterns of activity with a large
degree of heterogeneity that is informally or tacitly separated into classes. Yet, the precise …
degree of heterogeneity that is informally or tacitly separated into classes. Yet, the precise …
Double inverse stochastic resonance with dynamic synapses
We investigate the behavior of a model neuron that receives a biophysically realistic noisy
postsynaptic current based on uncorrelated spiking activity from a large number of afferents …
postsynaptic current based on uncorrelated spiking activity from a large number of afferents …
Differential effects of excitatory and inhibitory heterogeneity on the gain and asynchronous state of sparse cortical networks
JF Mejias, A Longtin - Frontiers in computational neuroscience, 2014 - frontiersin.org
Recent experimental and theoretical studies have highlighted the importance of cell-to-cell
differences in the dynamics and functions of neural networks, such as in different types of …
differences in the dynamics and functions of neural networks, such as in different types of …
Flexible metal oxide synaptic transistors using biomass-based hydrogel as gate dielectric
J Chen, E Li, Y Yan, Q Yang, S Cao… - Journal of Physics D …, 2019 - iopscience.iop.org
The construction of devices with biocompatible and biodegradable materials is a
sustainable approach which will open up a new way for the development of green …
sustainable approach which will open up a new way for the development of green …
Neural correlates of multisensory detection behavior: comparison of primary and higher-order visual cortex
We act upon stimuli in our surrounding environment by gathering the multisensory
information they convey and by integrating this information to decide on a behavioral action …
information they convey and by integrating this information to decide on a behavioral action …
Emergence of resonances in neural systems: the interplay between adaptive threshold and short-term synaptic plasticity
In this work we study the detection of weak stimuli by spiking (integrate-and-fire) neurons in
the presence of certain level of noisy background neural activity. Our study has focused in …
the presence of certain level of noisy background neural activity. Our study has focused in …
Irregular dynamics in up and down cortical states
Complex coherent dynamics is present in a wide variety of neural systems. A typical
example is the voltage transitions between up and down states observed in cortical areas in …
example is the voltage transitions between up and down states observed in cortical areas in …
Maximum memory capacity on neural networks with short-term synaptic depression and facilitation
In this work, we study, analytically and employing Monte Carlo simulations, the influence of
the competition between several activity-dependent synaptic processes, such as short-term …
the competition between several activity-dependent synaptic processes, such as short-term …