Building the Human Brain.

The article discusses a computational model of the human brain capable of simulating complex behaviors developed by C. Eliasmith et al. Eliasmith and colleagues' model, which is called the Semantic Pointer Architecture Unified Network (Spaun), can observe visual images and indicate its responses with a physical model of an arm. Topics include the challenges of building an artificial brain, such as the complexity of the human brain, the range of tasks Spaun can perform, such as image recognition, and an overview of the cognitive machinery of Spaun.