Chin. Phys. Lett.  2007, Vol. 24 Issue (1): 261-274    DOI:
Original Articles |
Contrast Adaptation Decreases Complexity in Retinal Ganglion Cell Spike Train
WANG Guang-Li1;HUANG Shi-Yong2;ZHANG Ying-Ying1;LIANG Pei-Ji1
1Department of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200240 2Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031
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WANG Guang-Li, HUANG Shi-Yong, ZHANG Ying-Ying et al  2007 Chin. Phys. Lett. 24 261-274
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Abstract The difference in temporal structures of retinal ganglion cell spike trains between spontaneous activity and firing activity after contrast adaptation is investigated. The Lempel--Ziv complexity analysis reveals that the complexity of the neural spike train decreases after contrast adaptation. This implies that the behaviour of the neuron becomes ordered, which may carry relevant information about the external stimulus. Thus, during the neuron activity after contrast adaptation, external information could be encoded in forms of some certain patterns in the temporal structure of spike train that is significantly different, compared to that of the spike train during spontaneous activity, although the firing rates in spontaneous activity and firing activity after contrast adaptation are sometime similar.
Keywords: 87.10.+e      42.62.Be      42.66.Lc     
Published: 01 January 2007
PACS:  87.10.+e  
  42.62.Be (Biological and medical applications)  
  42.66.Lc (Vision: light detection, adaptation, and discrimination)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2007/V24/I1/0261
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