Results 111 to 120 of about 1,932,034 (233)

The organization of networks within the orbital and medial prefrontal cortex of rats, monkeys and humans.

open access: yesCerebral Cortex, 2000
This paper reviews architectonic subdivisions and connections of the orbital and medial prefrontal cortex (OMPFC) in rats, monkeys and humans. Cortico-cortical connections provide the basis for recognition of 'medial' and 'orbital' networks within the ...
D. Öngür, J. Price
semanticscholar   +1 more source

Establecimiento de las condiciones para el trasplante de células de médula ósea en un modelo de enfermedad de Huntington y su efecto funcional a través de la conducta motora

open access: yesRevista Colombiana de Biotecnología, 2011
Título en ingles: Establishment of the conditions for the bone marrow cells transplants in a model of Huntington´s disease and functional effect on the motor  behavior   Resumen  La enfermedad de Huntington  (EH) es un trastorno degenerativo hereditario
Teresa Serrano Sánchez   +9 more
doaj  

Hierarchy of transcriptomic specialization across human cortex captured by structural neuroimaging topography

open access: yesNature Neuroscience, 2018
Hierarchy provides a unifying principle for the macroscale organization of anatomical and functional properties across primate cortex, yet microscale bases of specialization across human cortex are poorly understood.
J. Burt   +8 more
semanticscholar   +1 more source

CA1-projecting subiculum neurons facilitate object-place learning. [PDF]

open access: yes, 2019
Recent anatomical evidence suggests a functionally significant back-projection pathway from the subiculum to the CA1. Here we show that the afferent circuitry of CA1-projecting subicular neurons is biased by inputs from CA1 inhibitory neurons and the ...
Chen, Lujia   +12 more
core   +1 more source

The Development of Dominance Stripes and Orientation Maps in a Self-Organising Visual Cortex Network (VICON) [PDF]

open access: yesarXiv, 2010
A self-organising neural network is presented that is based on a rigorous Bayesian analysis of the information contained in individual neural firing events. This leads to a visual cortex network (VICON) that has many of the properties emerge when a mammalian visual cortex is exposed to data arriving from two imaging sensors (i.e. the two retinae), such
arxiv  

Thermodynamic Model of Criticality in the Cortex Based On EEG/ECOG Data [PDF]

open access: yesarXiv, 2012
Criticality in the cortex emerges from the seemingly random interaction of microscopic components and produces higher cognitive functions at mesoscopic and macroscopic scales. Random graphs and percolation theory provide natural means to de- scribe critical regions in the behavior of the cortex and they are proposed here as novel mathematical tools ...
arxiv  

Implementation of a Model of the Cortex Basal Ganglia Loop [PDF]

open access: yesarXiv
This article presents a simple model of the cortex-basal ganglia-thalamus loop, which is thought to serve for action selection and executions, and reports the results of its implementation. The model is based on the hypothesis that the cerebral cortex predicts actions, while the basal ganglia use reinforcement learning to decide whether to perform the ...
arxiv  

Note on the cortex of two-step nilpotent Lie algebras [PDF]

open access: yesarXiv, 2014
In this paper, we construct an example of a family of $4d$-dimensional two-step nilpotent Lie algebras $(\frak g_d)_{d\geq 2}$ so that the cortex of the dual of each $\frak g_d$ is a projective algebraic set. More precisely, we show that the cortex of each dual $\frak g_d^*$ of $\frak g_d$ is the zero set of a homogeneous polynomial of degree $d$. This
arxiv  

Towards a Theory of the Laminar Architecture of Cerebral Cortex: Computational Clues from the Visual System [PDF]

open access: yes, 2001
One of the most exciting and open research frontiers in neuroscience is that of seeking to understand the functional roles of the layers of cerebral cortex.
Grossberg, Stephen, Raizada, Rajeev D.S.
core   +1 more source

Conformal models for hypercolumns in the primary visual cortex V1 [PDF]

open access: yesarXiv
We propose a differential geometric model of hypercolumns in the primary visual cortex V1 that combines features of the symplectic model of the primary visual cortex by A. Sarti, G. Citti and J. Petitot and of the spherical model of hypercolumns by P. Bressloff and J. Cowan. The model is based on classical results in Conformal Geometry.
arxiv  

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