Mean-field analysis of synaptic alterations underlying deficient cortical gamma oscillations in schizophrenia [0.03%]
精神分裂症相关皮层γ振荡异常的突触机制的 mean-field 理论分析
Deying Song,Daniel W Chung,G Bard Ermentrout
Deying Song
Deficient gamma oscillations in the prefrontal cortex (PFC) of individuals with schizophrenia (SZ) are proposed to arise from alterations in the excitatory drive to fast-spiking interneurons (E → I) and in the inhibitory drive from th...
Gerald K Cooray,Vernon Cooray,Karl Friston
Gerald K Cooray
We characterise cortical dynamics using partial differential equations (PDEs), analysing various connectivity patterns within the cortical sheet. This exploration yields diverse dynamics, encompassing wave equations and limit cycle activity...
Computational model of layer 2/3 in mouse primary visual cortex explains observed visuomotor mismatch response [0.03%]
小鼠初级视觉皮层第2/3层的计算模型解释了观察到的视运动不匹配反应
Heiko Hoffmann
Heiko Hoffmann
Activity in layer 2/3 of the mouse primary visual cortex has been shown to depend both on visual input and the mouse's locomotion. Moreover, this activity is altered by a mismatch between the observed visual flow and the predicted visual fl...
Formation and retrieval of cell assemblies in a biologically realistic spiking neural network model of area CA3 in the mouse hippocampus [0.03%]
基于鼠标海马CA3区域的生物现实尖峰神经网络模型中的细胞族的形成与检索
Jeffrey D Kopsick,Joseph A Kilgore,Gina C Adam et al.
Jeffrey D Kopsick et al.
The hippocampal formation is critical for episodic memory, with area Cornu Ammonis 3 (CA3) a necessary substrate for auto-associative pattern completion. Recent theoretical and experimental evidence suggests that the formation and retrieval...
A computational model of auditory chirp-velocity sensitivity and amplitude-modulation tuning in inferior colliculus neurons [0.03%]
脑桥下部神经元计算模型的听觉声调速度敏感性及幅度调节定标
Paul W Mitchell,Laurel H Carney
Paul W Mitchell
We demonstrate a model of chirp-velocity sensitivity in the inferior colliculus (IC) that retains the tuning to amplitude modulation (AM) that was established in earlier models. The mechanism of velocity sensitivity is sequence detection by...
JCNS goes multiscale [0.03%]
JCNS进入多尺度时代
Alain Destexhe,Jonathan Victor
Alain Destexhe
Yiqing Lu,John Rinzel
Yiqing Lu
Firing rate models for describing the mean-field activities of neuronal ensembles can be used effectively to study network function and dynamics, including synchronization and rhythmicity of excitatory-inhibitory populations. However, tradi...
A computational model elucidating mechanisms and variability in theta burst stimulation responses [0.03%]
解释θ频段 bursts 刺激反应机制和变异的计算模型
Mohammadreza Vasheghani Farahani,Seyed Peyman Shariatpanahi,Bahram Goliaei
Mohammadreza Vasheghani Farahani
Theta burst stimulation (TBS) is a form of repetitive transcranial magnetic stimulation (rTMS) with unknown underlying mechanisms and highly variable responses across subjects. To investigate these issues, we developed a simple computationa...
Neural waves and computation in a neural net model II: Data-like structures and the dynamics of episodic memory [0.03%]
神经波和神经网络模型中的计算 第2部分：数据样结构与情景记忆的动态变化规律
Stephen Selesnick
Stephen Selesnick
The computational resources of a neuromorphic network model introduced earlier were investigated in the first paper of this series. It was argued that a form of ubiquitous spontaneous local convolution enabled logical gate-like neural motif...