Encyclopedia of Neuroscience

We now have access to the ebook Encyclopedia of Neuroscience, edited by Marc D. Binder, Nobutaka Hirokawa, and Uwe Windhorst and published by Springer Verlag. From the publisher's blurb:

The five-volume reference work gathers more than 10,000 entries, including in-depth essays by internationally known experts, and short keynotes explaining essential terms and phrases. In addition, expert editors contribute detailed introductory chapters to each of 43 topic fields ranging from the fundamentals of neuroscience to fascinating developments in the new, inter-disciplinary fields of Computational Neuroscience and Neurophilosophy. Some 1,000 multi-color illustrations enhance and expand the writings.

You'll see a search box on the right that you can use to search for particular terms.