Results 61 to 70 of about 132 (78)

Neurogeometry of Color Vision

Journal of Physiology (Paris), 2012
In neurogeometry, principles of differential geometry and neuron dynamics are used to model the representation of forms in the primary visual cortex, V1. This approach is well-suited for explaining the perception of illusory contours such as Kanizsa's figure (see Petitot (2008) for a review). In its current version, neurogeometry uses achromatic inputs
David Alleysson
exaly   +5 more sources

Neurogeometry and Potential Synaptic Connectivity

Trends in Neurosciences, 2005
The advent of high-quality 3D reconstructions of neuronal arbors has revived the hope of inferring synaptic connectivity from the geometric shapes of axons and dendrites, or 'neurogeometry'. A quantitative description of connectivity must be built on a sound theoretical framework.
Dmitri B. Chklovskii, Armen Stepanyants
exaly   +4 more sources

Landmarks for Neurogeometry

Lecture Notes in Morphogenesis, 2014
We present a historical survey of the way Neurogeometry links the modelling of the functional architectures of primary visual areas with sub-Riemannian geometry.
Jean Petitot
exaly   +3 more sources

The Neurogeometry of Pinwheels as a Sub-Riemannian Contact Structure

Journal of Physiology (Paris), 2003
We present a geometrical model of the functional architecture of the primary visual cortex (V1) and, more precisely, of its pinwheel structure. The problem is to understand from within how the internal "imminent" geometry of the visual cortex can produce the "transcendent" geometry of the external space.
Jean Petitot
exaly   +4 more sources

Elements of Neurogeometry

Lecture Notes in Morphogenesis, 2017
This book describes several mathematical models of the primary visual cortex, referring them to a vast ensemble of experimental data and putting forward an original geometrical model for its functional architecture, that is, the highly specific ...
Petitot, Jean, Jean Petitot
exaly   +3 more sources

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Measurement of the Electric Field Induced Into Inhomogeneous Volume Conductors by Magnetic Coils: Application to Human Spinal Neurogeometry

Electroencephalography and Clinical Neurophysiology - Evoked Potentials, 1991
We measured the electric fields induced by round and figure "8" magnetic coils (MCs) in homogeneous and inhomogeneous volume conductors. In homogeneous media, the round MC held tangential (i.e., flat) to the volume conductor induced an annular electric field.
R Q Cracco, P J Maccabee, V E Amassian
exaly   +3 more sources

Neurogeometry of Neural Functional Architectures

Chaos, Solitons and Fractals, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
exaly   +2 more sources

Neurogeometry and Entoptic Visions of the Functional Architecture of the Brain

Journal of Physiology (Paris), 2003
Yves Frégnac
exaly   +3 more sources

The neurogeometry project: how autistic spectrum disorder is reflected in the fractal dimensionality of multiparametric MRI

, 2021
Background Blood biomarkers levels are useful tools for the diagnosis and follow-up of some diseases – e.g., glycated haemoglobin in diabetes control – so, some organs have a defined rate of molecular synthesis. The brain is not less than other organs, so psychiatric entities must surely leave their footprint in some way.
Reales Moreno, Marta
core   +3 more sources

Neurogeometry of Stereo Vision [PDF]

, 2023
This work aims to develop a neurogeometric model of stereo vision, based on cortical architectures involved in the problem of 3D perception and neural mechanisms generated by retinal disparities.
Maria Virginia Bolelli
exaly   +2 more sources