ISNN 2010: Advances in Neural Networks - ISNN 2010 pp 44-50 | Cite as
Synchronized Activities among Retinal Ganglion Cells in Response to External Stimuli
Abstract
Synchronized firing is an efficient way for retinal ganglion cells (RGCs) to encode visual stimuli. In the present study, we studied synchronized activities among RGCs in response to natural movie and pseudo-random checker-board flickering. The results showed that nearby RGCs tended to fire synchronously much more frequently than expected by chance, in response to both stimuli. Under our experimental conditions, synchronous groups could contain three or more cells in response to natural movie; but activities were more often observed between pair-wise cells in response to checker-board flickering. The correlation index calculated between neuron pairs did not have any significant tendency of increase or decrease when natural movie stimulation was lasted; however, it tended to increase when pseudo-random checker-board flickering stimulation was lasted.
Keywords
Synchronized activities correlation index dynamical retinal ganglion cellsPreview
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