NeuroMod: Home of the Neural and Cognitive Modeling Group at the University of Amsterdam

This site is aimed at the research community and contains among others:

  • Free Windows neural network simulation software (Walnut/Nutshell)with a visual interface that also can be programmed in Visual Basic
  • An online course on neural networks and cognitive neuroscience
  • Some data sets

NeuroMod was sponsored by a PIONIER grant by the Netherlands Organization for Scientific Research (NWO) to Jaap Murre. The project ran from 1998 to about 2008. The software and course on this site are still up-to-date.


Walnut is an OpenSource framework for the development of neural network simulations by both beginners and experts. For the Windows platform, we currently also have a browser, called Nutshell, in which neural networks can be visualized and manipulated. Walnut and Nutshell can be downloaded free of charge.


Several courses are presented on neural networks, cognitive neuroscience, and neuropsychology.

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You can use Walnut with the free interface Nutshell. Go to the Downloads page to get it.

University of AmsterdamUniversity of Amsterdam
Department of Psychology
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