The theories of early brain scientists like Hebb and v. Hayek were in many ways analogous to modern attractor network models. In a series of simulations we have addressed the question whether or not a network of biological neurons could function as an attractor network. We found robust attractor dynamics displayed on a time-scale compatible with perceptual performance. The action at the cellular level of monoamine neuromodulators, like e.g. serotonin, could be modelled an effects on network behaviour were observed. The brain, however, is a highly complex multi-network structure and models have to take this into account before one can get a more complete understanding of the full range of its function.
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