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Neural representation of α-oriented moving light bars in the cortex: A neural network study

Yihua Li, Aike Guo
2001 Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics  
A neural computational model is suggested in this paper for investigating the stimulus dependence of spiking patterns and the neural representation of ␣-oriented moving light bars in the cortex. In this model, a stimulus-directed cortical developing algorithm is introduced for training the neural network. Three classes of computer simulations concerned with the orientation of the stimulus are carried out. The simulation results show that the fine temporal structure of spiking patterns of single
more » ... patterns of single units depends on the ␣ orientation of the two moving light bars, and the fine temporal structure of their combinatorial spiking patterns are also context dependent. They also show that the neural representation of an ␣-oriented moving light bar is determined not only by the stimulus itself but also the architecture of the matured network. In the end, we propose a possible neural coding mechanism underlying the temporal cell subassemblies in the cortex, which could be spontaneously and dynamically organized into a dynamical cell assembly by synchronized activity of these subassemblies.
doi:10.1103/physreve.64.041916 pmid:11690061 fatcat:6lmjgotyvjajzdcwgdjn6ukwei