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How to install LFPy

  1. Download and install ActivePython
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  3. Type pypm install lfpy
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version 0.9.5 on Sep 20th, 2013

LFPy

LFPy is a Python-module for calculation of extracellular potentials from multicompartment neuron models. It relies on the NEURON simulator (http://www.neuron.yale.edu/neuron) and uses the Python interface (http://www.frontiersin.org/neuroinformatics/10.3389/neuro.11.001.2009/abstract) it provides.

LFPy provides a set of easy-to-use Python classes for setting up your model, running your simulations and calculating the extracellular potentials arising from activity in your model neuron. If you have a model working in NEURON (www.neuron.yale.edu) already, it is likely that it can be adapted to work with LFPy.

The extracellular potentials are calculated from transmembrane currents in multi-compartment neuron models using the line-source method (Holt & Koch, J Comp Neurosci 1999), but a simpler point-source method is also available. The calculations assume that the neuron are surrounded by an infinite extracellular medium with homogeneous and frequency independent conductivity, and compartments are assumed to be at least at a minimal distance from the electrode (which can be specified by the user). For more information on the biophysics underlying the numerical framework used see this coming book chapter:

In the present version LFPy is mainly designed for simulation of single neurons.

LFPy was developed in the Computational Neuroscience Group (http://compneuro.umb.no), Department of Mathemathical Sciences and Technology (http://www.umb.no/imt), at the Norwegian University of Life Sciences (http://www.umb.no) , in collaboration with the Laboratory of Neuroinformatics (http://www.nencki.gov.pl/en/laboratory-of-neuroinformatics), Nencki Institute of Experimental Biology (http://www.nencki.gov.pl), Warsaw, Poland. The effort was supported by International Neuroinformatics Coordinating Facility (http://incf.org), the Research Council of Norway (http://www.forskningsradet.no/english) (eScience, NevroNor) and EU-FP7 (BrainScaleS, http://www.brainscales.org).

For updated information on LFPy and online documentation, see the LFPy homepage (http://compneuro.umb.no/LFPy).

This scientific software is released under the GNU Public License GPLv3.

Requirements

To install LFPy you will need the following:

  • Python modules numpy, scipy and matplotlib

  • NEURON (from http://www.neuron.yale.edu) compiled as a Python module, so the following should execute without error in Python console:

    import neuron
    neuron.test()
    
  • Cython (C-extensions for python, http://cython.org) to speed up simulations of extracellular fields

Installation

There are few options to install LFPy:

  1. From the Python Package Index with only local access using pip

    pip install --user LFPy
    

    as sudoer:

    sudo pip install LFPy
    
  2. From the Python Package Index with only local access using easy_install

    easy_install --user LFPy
    

    as sudoer:

    sudo easy_install LFPy
    
  3. From source:

    tar -xzf LFPy-x.x.tar.gz
    cd LFPy-x.x
    (sudo) python setup.py install (--user)
    
  4. Development version from subversion repository:

    svn checkout http://bebiservice.umb.no/svn-public/LFPy-release/trunk LFPy
    cd LFPy
    (sudo) python setup.py install (--user)
    

Documentation

To generate the html documentation issue from the LFPy source code directory:

sphinx-build -b html /path/to/LFPy/documentation/sources path/to/dest

The main html file is now in path/to/dest/index.html

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Last updated Sep 20th, 2013

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