3 papers
q-bio.NC2007
Theory of input spike auto- and cross-correlations and their effect on the response of spiking neurons
Ruben Moreno-Bote, Alfonso Renart, Nestor Parga
Spike correlations between neurons are ubiquitous in the cortex, but their role is at present not understood. Here we describe the firing response of a leaky integrate-and-fire neu…
cond-mat.stat-mech2001
Scene dependence of the non-gaussian scaling properties of natural images
A. Nevado, A. Turiel, N. Parga
We report results on the scaling properties of changes in contrast of natural images in different visual environments. This study confirms the existence, in a vast class of images,…
cond-mat.stat-mech2001
The multi-fractal structure of contrast changes in natural images: from sharp edges to textures
A. Turiel, N. Parga
We present a formalism that leads very naturally to a hierarchical description of the different contrast structures in images, providing precise definitions of sharp edges and othe…