Collective Oscillations in the Visual Cortex

Part of Advances in Neural Information Processing Systems 2 (NIPS 1989)

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Daniel Kammen, Christof Koch, Philip Holmes


The firing patterns of populations of cells in the cat visual cor(cid:173) tex can exhibit oscillatory responses in the range of 35 - 85 Hz. Furthermore, groups of neurons many mm's apart can be highly synchronized as long as the cells have similar orientation tuning. We investigate two basic network architectures that incorporate ei(cid:173) ther nearest-neighbor or global feedback interactions and conclude that non-local feedback plays a fundamental role in the initial syn(cid:173) chronization and dynamic stability of the oscillations.