parameters.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# -----------------------------------------------------------------------------
# Copyright INRIA
# Contributors: Wahiba Taouali (Wahiba.Taouali@inria.fr)
#               Nicolas P. Rougier (Nicolas.Rougier@inria.fr)
#
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# -----------------------------------------------------------------------------
import numpy as np

second       = 1.0
millisecond  = 0.001
dt           = 5*millisecond
duration     = 10*second
noise        = 0.01

retina_shape     = np.array([4096,2048]).astype(float)
projection_shape = np.array([512,512]).astype(float)
n = 128
colliculus_shape = np.array([n,n]).astype(float)

# Default stimulus
stimulus_size      = 1.5 # in degrees
stimulus_intensity = 1.5

# DNF parameters (linear)
sigma_e  = 0.10
A_e      = 1.30
sigma_i  = 1.00
A_i      = 0.65
alpha    = 12.5
tau      = 10*millisecond
scale    = 40.0*40.0/(n*n)