Possibility of Cantor Coding by Spatial Input Patterns

In rat CA1 pyramidal neurons under sub- and supra-threshold conditions, our previous study showed the potentials of Cantor coding, which is theoretically proposed by Tsuda and Kuroda. However, the coding could be explained by mean rate coding simply depended on input pattern history of the peak amplitude of each input. In order to confirm that Cantor coding includes any other factors except mean rate coding, we applied three spatially different patterns of electrical stimulations with similar peak amplitudes. Although the responses did not show the statistical significant self-similar property, the membrane responses show significant clustering property. Our results suggest that some factors, which does not simply depend on mean firing rate coding, was included in Cantor coding processing.

Authors and Affiliations

1. Brain Science Institute, Tamagawa University, 6-1-1, Tamagawagakuen, Machida, 194-8610, Japan

   Yasuhiro Fukushima & Minoru Tsukada

2. Research Institute of Electronic Science, Hokkaido University, Japan

   Ichiro Tsuda & Yutaka Yamaguti

3. Department of Mathematics, Hokkaido University, Japan

   Ichiro Tsuda & Shigeru Kuroda

Editors and Affiliations

1. Kyushu Institute of Technology, Network Design and Research Center, 680-4 Fukuoka, 820-8502, Kawazu, Iizuka, Japan

   Mario Köppen

2. Knowledge Engineering and Discovery Research Institute (KEDRI), School of Computing and Mathematical Sciences, Auckland University of Technology, 350 Queen Street, 10110, Auckland, New Zealand

   Nikola Kasabov

3. Department of Electrical and Computer Engineering, Robotics Laboratory, Auckland University of Technology, 38 Princes Street, 1142, Auckland, New Zealand

   George Coghill

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