Theoretical study on understanding the information processing mechanism in electrosensory system as a system

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K07146
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Animal physiology/Animal behavior
• Research Institution: The University of Electro-Communications
• Principal Investigator: KASHIMORI Yoshiki 電気通信大学, 大学院情報理工学研究科, 教授 (70233707)
• Co-Investigator(Renkei-kenkyūsha): FUJITA Kazuhisa 津山高等専門学校, 総合理工学科, 講師 (80462141)
• Project Period (FY): 2015-10-21 – 2018-03-31
• Keywords: 神経科学 / 電気感覚システム / 数理モデル / 大規模並列計算 / 情報処理機構

Outline of Final Research Achievements

We studied the stimulus geometry and neural coding in discrimination of object’s shapes in electrosensory system. We investigated the computation ability of a GPGPU method and the accuracy of single-precision calculations. The GPGPU computation provides several advantages in reduction of computation time and accuracy of single-precision calculations. We also found from the calculation of electric field around a weakly electric fish that the difference between object’s shapes is represented by the difference in the maximum amplitude and width of the electric-field modulations caused by object rotation. Furthermore, we found that in receptors and the hindbrain object information is encoded in the firing patterns just before an object returns to the original form in the rotation.

Free Research Field

計算神経科学