of concentration of measure theory (stochastic separation theorems) with applications to artificial neural networks give mathematical background to unexpected effectiveness of small neural ensembles in high-dimensional brain. Clinical significance Sometimes neural circuitries can become pathological and cause problems such as in Parkinson's disease when the basal ganglia are involved. Problems in the Papez circuit can also give rise to a number of neurodegenerative disorders including Parkinson's. See also Feedback List of regions in the human brain Network science Neural coding Neural engineering Neural oscillation Pulse-coupled networks Systems neuroscience References Further reading Intrinsic plasticity Robert H. Cudmore, Niraj S. Desai Scholarpedia 3(2):1363. doi:10.4249/scholarpedia.1363 External links Comparison of Neural Networks in the Brain and Artificial Neural Networks Lecture notes at MIT OpenCourseWare Computation in the Brain Biological Neural Network Toolbox - A free Matlab toolbox for simulating networks of several different types of neurons WormWeb.org: Interactive Visualization of the C. elegans Neural Network - C. elegans, a nematode with 302 neurons, is the only organism for whom the entire neural network has been uncovered. Use this site to browse through the network and to search for paths between any 2 neurons. Introduction to Neurons and Neuronal Networks, Neuroscience Online (electronic neuroscience textbook) Delaying Pulse Networks (Wave Interference Networks) Cognition