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Paper Abstract and Keywords
Presentation 2026-01-29 09:55
Simulation Analysis of the Probability Distribution of First-Spike-Latency Coding in the Bat Auditory System
Yuma Ito (KIT), Yuki Hayashida (Mie University), Shinsuke Yasukawa (KIT) NLP2025-99 MBE2025-39 NC2025-61
Abstract (in Japanese) (See Japanese page) 
(in English) In bat echolocation, it has been suggested that the first-spike latency (FSL)—defined as the latency of the first spike evoked by an echo, measured relative to the timing of the bat’s own call emission—encodes relative target location. However, because spike generation in cochlear neurons is inherently stochastic, FSL exhibits temporal variability, and it remains unclear how such unstable temporal information is processed in the auditory central pathway. In this study, we constructed a spiking neural network model that mimics monaural processing and binaural integration from the cochlea to the auditory center, and quantitatively analyzed the variability of FSL distributions across frequency channels. Through this analysis, we investigate how stochastic spike-code fluctuations originating in auditory periphery may be transformed and reconstructed by central processing, thereby contributing to a better understanding of temporal coding mechanisms in the auditory system.
Keyword (in Japanese) (See Japanese page) 
(in English) Echolocation / Auditory system / Temporal spike code / Simulation / / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 346, NC2025-61, pp. 72-72, Jan. 2026.
Paper # NC2025-61 
Date of Issue 2026-01-21 (NLP, MBE, NC) 
ISSN Online edition: ISSN 2432-6380
Copyright
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reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF NLP2025-99 MBE2025-39 NC2025-61

Conference Information
Committee NC MBE NLP IEE-MBE  
Conference Date 2026-01-28 - 2026-01-30 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyushu Institute of Technology, Wakamatsu Campus 
Topics (in Japanese) (See Japanese page) 
Topics (in English) NC, NLP, ME, etc. 
Paper Information
Registration To NC 
Conference Code 2026-01-NC-MBE-NLP-MBE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Simulation Analysis of the Probability Distribution of First-Spike-Latency Coding in the Bat Auditory System 
Sub Title (in English)  
Keyword(1) Echolocation  
Keyword(2) Auditory system  
Keyword(3) Temporal spike code  
Keyword(4) Simulation  
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Keyword(6)  
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1st Author's Name Yuma Ito  
1st Author's Affiliation Kyushu Institute of Technology (KIT)
2nd Author's Name Yuki Hayashida  
2nd Author's Affiliation Mie University (Mie University)
3rd Author's Name Shinsuke Yasukawa  
3rd Author's Affiliation Kyushu Institute of Technology (KIT)
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Speaker Author-1 
Date Time 2026-01-29 09:55:00 
Presentation Time 25 minutes 
Registration for NC 
Paper # NLP2025-99, MBE2025-39, NC2025-61 
Volume (vol) vol.125 
Number (no) no.344(NLP), no.345(MBE), no.346(NC) 
Page p.72 
#Pages 1 
Date of Issue 2026-01-21 (NLP, MBE, NC) 

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