Concept

Grid cell

Related publications (50)

Analyse du contexte à l'aide de méthodes probabilistes pour l'interaction hommes-robots

Mobile robots are gradually appearing in our daily environments. In order to autonomously navigate in real world environments and interact with objects and humans, robots are facing various major technological challenges. Among the required key competences ...

EPFL2006

Individual differences in anxiety trait are related to spatial learning abilities and hippocampal expression of mineralocorticoid receptors

Maria del Carmen Sandi Perez

Although high levels of anxiety might be expected to negatively influence learning and memory, it remains to be shown whether individual differences in anxiety may influence spatial learning and memory in outbred rat populations. We have studied this possi ...

2006

GLUT8 is dispensable for embryonic development but influences hippocampal neurogenesis and heart function

Friedrich Beermann

GLUT8 is a glucose transporter isoform expressed at high levels in testis; at intermediate levels in the brain, including the hippocampus; and at lower levels in the heart and several other tissues. GLUT8 is located in an intracellular compartment and does ...

2006

Modelling Path Integrator Recalibration Using Hippocampal Place cells

Wulfram Gerstner, Ricardo Andres Chavarriaga Lozano, Thomas Strösslin

The firing activities of place cells in the rat hippocampus exhibit strong correlations to the animal's location. External (e.g. visual) as well as internal (proprioceptive and vestibular) sensory information take part in controlling hippocampal place fiel ...

Springer-Verlag GmbH2005

Robust self-localisation and navigation based on hippocampal place cells

Wulfram Gerstner, Ricardo Andres Chavarriaga Lozano, Thomas Strösslin

A computational model of the hippocampal function in spatial learning is presented. A spatial representation is incrementally acquired during exploration. Visual and self-motion information is fed into a network of rate-coded neurons. A consistent and stab ...

Elsevier2005

Spatial Representation and Navigation in a Bio-inspired Robot

Wulfram Gerstner, Ricardo Andres Chavarriaga Lozano, Thomas Strösslin

A biologically inspired computational model of rodent repre-sentation?based (locale) navigation is presented. The model combines visual input in the form of realistic two dimensional grey-scale images and odometer signals to drive the firing of simulated p ...

2005

Stress suppresses and learning induces plasticity in CA3 of rat hippocampus: a three-dimensional ultrastructural study of thorny excrescences and their postsynaptic densities

Maria del Carmen Sandi Perez, Maria Isabel Cordero Campana

Chronic stress and spatial training have been proposed to affect hippocampal structure and function in opposite ways. Previous morphological studies that addressed structural changes after chronic restraint stress and spatial training were based on two-dim ...

2005

Dynamics of population rate codes in ensembles of neocortical neurons

Henry Markram, Gilad Silberberg, Matthias Bethge

Information processing in neocortex can be very fast, indicating that neuronal ensembles faithfully transmit rapidly changing signals to each other. Apart from signal-to-noise issues, population codes are fundamentally constrained by the neuronal dynamics. ...

2004

Rapid reversal of stress induced loss of synapses in CA3 of rat hippocampus following water maze training

Maria del Carmen Sandi Perez, Maria Isabel Cordero Campana

The impact was examined of exposing rats to two life experiences of a very different nature (stress and learning) on synaptic structures in hippocampal area CA3. Rats were subjected to either (i) chronic restraint stress for 21 days, and/or (ii) spatial tr ...

2003

Overexpression of neuronal Sec1 enhances axonal branching in hippocampal neurons

Harald Hirling, Pascal Steiner, Juan-Carlos Sarria

The soluble N-ethylmaleimide-sensitive factor-attached protein receptor (SNARE) proteins syntaxin 1 and synaptosomal-associated protein-25 have been implicated in axonal outgrowth. Neuronal Sec1 (nSec1), also called murine unc18a (Munc18a), is a syntaxin 1 ...

2002

Graph Chatbot

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.