www.imodel.org
GaborME.0.0.sh.th
2008 Jul 28
Summary This is a spatially and temporally half-size
variant of the standard GaborME.0.0
model. The spatial Gabor filter was constructed using a Gaussian SD
that is 1/2 as wide and a spatial frequency that is double that of the
standard model. The temporal Gabor filter was constructed using a
Gaussian SD that is 1/2 as long and a temporal frequency that is
double that of the standard model.
Results
Results are similar to those for GaborME.0.0, except that the peak of
the SF and TF tuning curves are one octave higher.
Discussion
The gain before the Poisson spike generation is set to 8 times that of
the standard model, to account for the factor of two shrinkage of the
linear filter in two spatial dimensions and the halving of the
temporal dimension. The RF is small at the spatial resolution of the
model (0.1 deg/pix), but is well within the Nyquist limit.