Chaos may enhance information transmission in the inferior olive

• Nicolas Schweighofer

  Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Corporation, and ATR, Computational Neuroscience Laboratories, 2-2-2, Hikaridai, Seika-cho, Soraku-gun, Kyoto 619-0288, Japan; Department of Information Science, Gifu University, Gifu 501-1193, Japan; Ecole Nationale Supérieure des Télécommunications, 75014 Paris, France; and Nara Institute of Science and Technology, Ikoma, Nara 630-0101, Japan

• Kenji Doya

  Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Corporation, and ATR, Computational Neuroscience Laboratories, 2-2-2, Hikaridai, Seika-cho, Soraku-gun, Kyoto 619-0288, Japan; Department of Information Science, Gifu University, Gifu 501-1193, Japan; Ecole Nationale Supérieure des Télécommunications, 75014 Paris, France; and Nara Institute of Science and Technology, Ikoma, Nara 630-0101, Japan

• Hidekazu Fukai

  Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Corporation, and ATR, Computational Neuroscience Laboratories, 2-2-2, Hikaridai, Seika-cho, Soraku-gun, Kyoto 619-0288, Japan; Department of Information Science, Gifu University, Gifu 501-1193, Japan; Ecole Nationale Supérieure des Télécommunications, 75014 Paris, France; and Nara Institute of Science and Technology, Ikoma, Nara 630-0101, Japan

• Jean Vianney Chiron

  Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Corporation, and ATR, Computational Neuroscience Laboratories, 2-2-2, Hikaridai, Seika-cho, Soraku-gun, Kyoto 619-0288, Japan; Department of Information Science, Gifu University, Gifu 501-1193, Japan; Ecole Nationale Supérieure des Télécommunications, 75014 Paris, France; and Nara Institute of Science and Technology, Ikoma, Nara 630-0101, Japan

• Tetsuya Furukawa

  Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Corporation, and ATR, Computational Neuroscience Laboratories, 2-2-2, Hikaridai, Seika-cho, Soraku-gun, Kyoto 619-0288, Japan; Department of Information Science, Gifu University, Gifu 501-1193, Japan; Ecole Nationale Supérieure des Télécommunications, 75014 Paris, France; and Nara Institute of Science and Technology, Ikoma, Nara 630-0101, Japan

• Mitsuo Kawato

  Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Corporation, and ATR, Computational Neuroscience Laboratories, 2-2-2, Hikaridai, Seika-cho, Soraku-gun, Kyoto 619-0288, Japan; Department of Information Science, Gifu University, Gifu 501-1193, Japan; Ecole Nationale Supérieure des Télécommunications, 75014 Paris, France; and Nara Institute of Science and Technology, Ikoma, Nara 630-0101, Japan

Abstract

Despite unique well characterized neuronal properties, such as extensive electrical coupling and low firing rates, the role of the inferior olive (IO), which is the source of the climbing fiber inputs to cerebellar Purkinje cells, is still controversial. We propose that the IO stochastically recodes the high-frequency information carried by its synaptic inputs into stochastic, low-rate spikes in its climbing fiber output. Computer simulations of realistic IO networks showed that moderate electrical coupling produced chaotic firing, which maximized the input-output mutual information. This “chaotic resonance” may allow rich error signals to reach individual Purkinje cells, even at low firing rates, allowing efficient cerebellar learning.

Journal

• Proceedings of the National Academy of Sciences

  Proceedings of the National Academy of Sciences 101 (13), 4655-4660, 2004-03-22

  Proceedings of the National Academy of Sciences

Keywords

• Multidisciplinary

Details

• CRID: 1363670319399171968
• NII Article ID: 80016606450
• DOI: 10.1073/pnas.0305966101
• ISSN: 10916490
• ISSN: 00278424
• Web Site: https://pnas.org/doi/pdf/10.1073/pnas.0305966101
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