Disruptive effects on neocortical processing by pulsed fMRI gradients: A modeling study in the auditory cortex

David Beeman and Howard Wachtel, Department of Electrical, Computer, and Energy Engineering, University of Colorado, Boulder CO 80309

Poster 636.10 presented at Society for Neuroscience meeting November 2013

The scientific purpose and simulation results are described in the extended abstract, and in these links to the PDF files for the two panels of the poster:



The four columns are to be read from left to right, from top panel to bottom panel.

Model Description

fMRInet is an adapdation of the GENESIS ACnet2 model (Beeman 2013) of layer 4 of the primary auditory cortex (AI). This version uses the same cortical model, but with changes in the input model to represent the effects of electrical fields that are generated during a typical echo planar imaging (EPI) fMRI experiment. The simulation scripts and documentation for these modifications to the ACnet2 model illustrate ways to efficiently provide custom input paradigms to a network of hsolved cells with the GENESIS simulator.

The ACnet2 simulation scripts, tutorial documentation for using and extending the model, and links to the CNS poster (Paris, July 2013) "A modeling study of cortical waves in primary auditory cortex" can be found at:


The documentation, with a full description of the model and the simulation can be found at:


The fMRInet simulation scripts and documentation will be available here by the end of December 2013.


Beeman D (2013) A modeling study of cortical waves in primary auditory cortex. BMC Neuroscience, 14(Suppl 1):P23 doi:10.1186/1471-2202-14-S1-P23 (http://www.biomedcentral.com/1471-2202/14/S1/P23.)

David Beeman
Tue Dec 3 15:32:55 MST 2013