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Concerted firing is one of the important ways for neurons to encode sensory stimuli. In the present study, we investigated dynamic concerted activities among retinal ganglion cells (RGCs) in response to natural movie and pseudo-random checkerboard flicking stimuli. The results showed that concerted activity patterns among RGCs changed dynamically during both stimuli, which were represented by the...
Adaptation helps retinal ganglion cells encode varying visual signals. However, an index for population adaptation is still lacking. In present study, we applied entropy theory to characterize the process of adaptation for a group of ganglion cells under the stimulus of both full-field white light and pseudorandom checker-board. We noticed that entropy rate shared the same trend with meaning firing...
To investigate the temporal and spatial properties of the retinal ganglion cells' activities in response to natural stimuli, "sparsity" index was applied to analyze the response characteristics of chicken retinal ganglion cells (RGCs) in exposure to checker-board flickering and natural movies (grayscale video-recording) over lifetime and across the population. The statistical results show...
Retina is the first stage for visual information processing in vertebrates. However, the retinal function is constrained by a number of factors such as the anatomic limitation, the metabolic limitation, and the noise in the neural circuitry. Our research is mainly focused to investigate the efficiency of information processing of the retinal neurons under such limitations and the related spatial and...
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