Information
July 24 (Friday) and 25 (Saturday), 2026
2026年7月24日（金）、25日（土）
Tsukuba International Congress Center, Hall 300
つくば国際会議場、ホール300
Access toTsukuba International Congress Center
The Japanese Society for Behavioral Neuroendocrinology (JSBN) was founded in 2006, making 2026 our milestone 20th anniversary year. Over the past two decades, the society has brought together researchers across Japan with the shared goal of nurturing the next generation of scholars in the field of behavioral neuroendocrinology. One of our signature activities is the annual summer meeting, held in a retreat-style setting. This meeting provides a unique opportunity for graduate and undergraduate students to receive guidance and feedback from researchers beyond their own institutions. Through these interactions, many young researchers have developed their scientific careers and are now actively contributing to the field both in Japan and abroad. We have also promoted international academic exchange, particularly within the Asia–Oceania region, strengthening our global connections and expanding the visibility of our community. To mark this important milestone, we are delighted to announce the 20th Anniversary International Symposium. The program will feature a keynote lecture, thematic symposium sessions, including a session dedicated to early-career researchers who are alumni of the society, as well as poster presentations. We are also pleased to welcome several overseas attendees as symposium speakers and poster presenters. We sincerely hope this symposium will serve as a launching pad for the further development of the society in the coming years. We warmly welcome all participants to celebrate this special occasion.
2006年に発足した日本行動神経内分泌研究会(JSBN)は、2026年に創立20周年を迎えます。この間、国内の研究者が集結し、行動神経内分泌学領域の次世代の研究者を育成することを主要目的・理念に掲げ、様々な活動を行ってきました。特に、毎年夏には合宿形式での大会を開催し、所属大学・研究機関を超えて、大学院、学部学生への指導、助言を行ってまいりました。その結果、現在では、国内外で多くの若手研究者が活躍しています。また、アジア・オセアニア圏を中心とする海外の研究者や学生との学術交流活動も積極的に行い、海外での認知度も高まっております。このような実績を背景に、このたび創立20周年記念の国際シンポジウムを開催することとなりました。特別講演、シンポジウム講演、本研究会から巣立った若手研究者によるセッション、そしてポスターセッションからなる充実したプログラムが実現しました。さらに、シンポジストやポスター発表者として、海外からも多くの皆様にご参加いただけることは大きな喜びです。本シンポジウムがJSBNのさらなる発展に繋がることを願っております。皆様のご参加を心より歓迎いたします。
Yasuhiko Kondo, Ph.D.
President, the Japanese Society for Behavioral Neuroendocrinology (JSBN)
Teikyo University of Science, Japan
Organizing Committee
|
Chair Sonoko Ogawa, Tsukuba Univ, Japan |
Vice Chair Shinji Tsukahara, Saitama Univ, Japan |
| Masaki Kakeyama, Waseda Univ, Japan | Hideaki Takeuchi, Tohoku Univ, Japan |
| Fumihiko Maekawa, NIES, Japan | Yousuke Tsuneoka, Toho Univ, Japan |
| Moeko Kanaya, Saitama Univ, Japan | Mariko Nakata, Tsukuba Univ, Japan |
| Wen Sung Lai, Taiwan | Dingzhen Liu, China |
| Tomoko Soga, Malaysia | Anders Ågmo, Norway |
| Nandini Vasudevan, UK | Mumeko C. Tsuda, USA |
This symposium is supported by
Uehara Memorial Foundation（公益財団法人 上原記念生命科学財団）
Tsukuba City（つくば市）
Strategic Research Center of Saitama University（埼玉大学 戦略研究センター グリーンバイオサイエンス研究領域）
Neuroscience Consulting (ニューロサイエンスコンサルティング)
小原医科産業株式会社 
This symposium is Co-hosted by
Schedule You can find the timetable here.
Day 1, July 24 (Friday), 2026
8:30–9:30 Social Gathering/Poster Setting
8:45 Registration Desk Open
9:15–9:35 Opening Remarks: History of the JSBN
Yasuhiko Kondo (Teikyo University of Science, Japan)
9:35–11:40 Session 1: Adaptive expression of social behaviors by sex steroids Chair: Tomoko Soga
－社会性行動の調節基盤としての性ステロイドの働き－
Ken Ichi Matsuda (Kyoto Prefectural University of Medicine, Japan)
Estrogen Receptor α-Positive Neurons in the Regulation of Socio-Sexual Behavior
Marc Tetel (Wellesley College, USA)
Estrogens, Anxiety and the Microbiome
Nandini Vasudevan (University of Reading, UK)
The Regulation of Behaviours in the Male by Hypothalamic Neuroestrogens
Yousuke Tsuneoka (Toho University, Japan)
Activation of Penk Neurons in the Central MPOA Selectively Enhances Consummatory Sexual Behavior in Male Mice in a Sustained Manner
Shinji Tsukahara (Saitama University, Japan)
Embryonic Estrogens Induce Progesterone Receptor Signaling to Organize the Female Reproductive Neuroendocrine System in Birds
11:50–12:00 Group Photo at Main Entrance Hall Staircase
12:00–14:00 Poster Session over Lunch
14:10–16:15 Session 2: Molecular and neuronal systems underlying social behaviors Chair: Tatsushi Onaka
－社会性を司る脳の分子・遺伝子・構造基盤－
Masahiro Morishita (Nippon medical school, Japan)
Comparative Anatomy and Fetal Androgen-Related Development of Sexually Dimorphic Nuclei Linked to Social Behavioral Variation
Taiju Amano (Hokkaido University, Japan)
Functionally Distinct Amygdalohippocampal Area–Preoptic Area Projection Neurons Associated with Pup-Directed Aggression and Paternal Care
Hideaki Takeuchi (Tohoku University, Japan)
Exploring the Neural and Genetic Mechanisms Underlying Visually Guided Social Preference, Shoaling, and Behavioral Deviations in Medaka
Arpád Dobolyi (Eotvos Lorand University, Hungary)
Social Touch Suppresses Aggression via Thalamic Mechanisms
Teruhiro Okuyama (The University of Tokyo, Japan)
Neural Mechanisms Underlying the Representation of Others
16:25–18:30 Session 3: Development and disruption of the brain regulating social behavior Chair: Keiko Takanami
－社会性を制御する脳の発達と破綻のメカニズム－
Fumihiko Maekawa (National Institute for Environmental Studies, Japan)
Environmental Chemicals and Brain Development: From Developmental Neurotoxicity to Distinct Risk Concepts of Nanoplastics
Heather Patisaul (NIH/NIEHS, USA)
Development and Disruption of the Brain Regulating Social Behavior
Tomoko Soga (Monash University Malaysia, Malaysia)
Neuropeptide Regulation of Social Stress Responses: Insights from Spexin Signaling in Nile Tilapia (Oreochromis niloticus)
Tomoyuki Furuyashiki (Institute of Science Tokyo, Japan)
Neuroimmune Mechanisms of Stress
T John Wu (Uniformed Services University of the Health Sciences, USA)
Neuroendocrine Drivers of Behavior Under Allostatic Load
18:30–19:00 Social Gathering/Poster Viewing
19:00–21:00 Congress Dinner（Ristrante TSUMU）
Day 2, July 25 (Saturday), 2026
8:30-9:30 Social Gathering/Poster Viewing
8:45 Registration Desk Open
9:10–10:50 Session 4: Comparative behavioral neuroendocrinology of sociality Chair: Ishwar Parhar
－社会性の比較行動神経内分泌学－
Tomoya Nakamachi (University of Toyama, Japan)
Functional Differentiation of Duplicated PACAP Genes in the Regulation of Social Approach in Zebrafish
Towako Hiraki-Kajiyama (Tohoku University, Japan)
Comparative Analysis of Small Fish Brains Using Single-Cell RNA Sequencing
Chihiro Mori (Teikyo University, Japan)
A Gynandromorphic Songbird, Zebra Finch
Satoshi Kojima (Korea Brain Research Institute, South Korea)
Why Early Birds Sing Early: Mechanisms and Function of the Avian “Dawn Chorus”
10:55–11:35 Keynote Lecture Chair: Yasuhiko Kondo
Sonoko Ogawa (University of Tsukuba, Japan)
The Social Brain: Estrogen Action and Behavioral Regulation
11:45–12:45 Alumni Session over Lunch Chair: Mumeko C. Tsuda
Himeka Hayashi (Tohoku University, Japan)
A Shared VMHvl Oxytocin Circuit for Pleasurable Social Touch and Sexual Behavior
Kansuke Hasunuma (Kwansei Gakuin University, Japan)
Roles of Oxytocin and Vasopressin in Aggressive Behavior of Male Prairie Voles (Microtus ochrogaster): Insights from Knockout Models
Joi Yashima (University of Yamanashi, Japan)
The Role of Astrocytes in Stress-Coping Behavior
Nozomi Endo (Hyogo Medical University, Japan)
How Does Stress Alter Mouse Behavior? — Taking on Behavioral Phenotyping with Original Tests
12:55–15:00 Session 5: Mechanisms underlying the adaptive regulation of social behavior Chair: Yousuke Tsuneoka
－社会性行動の適応的表出に働く様々な要因－
Keiko Takanami (Nara Women’s University, Japan)
Why Does Itch Exist? Neuroendocrine Regulation of Itch Sensitivity Across the Lifespan
Daisuke Joho (RIKEN Center for Brain Science, Japan）
Generation and Analysis of Non-Human Primate Models of Alzheimer’s Disease
Mariko Nakata (University of Tsukuba, Japan)
Development of a Novel Group-Based Operant Task for Mice: the Tsunahiki Task
Mumeko C. Tsuda (National Institute of Mental Health, USA)
Adult Hippocampal Neurogenesis and Its Role in Social Behavior in Mice and Rats
Shuntaro Izawa (University of Tsukuba, Japan)
The System of Melanin-Concentrating Hormone–Producing Neurons in the Hypothalamus
15:00–15:30 Award Ceremony/Closing Remarks
Registration Period
A: Regular Registration: March 16 (Monday), 2026 – May 31 (Sunday), 2026 (JST)
Registration during this period is required for both the poster presentation and the Young Investigators Travel Grant application.
B: Late Registration: June 1 (Monday) – July 17 (Friday), 2026 (JST)
Payment certificates and Name Cards will be provided on the site.
All registration are processed online.
Go to the Registration Site
Registration Fee (Member and Non-Member)
PI, Professionals: JPY 15,000 (for A: Regular Registration), JPY 18,000 (for B: Late Registration)
Post Doctoral Fellows (or Equivalent Positions): JPY 5,000 (for both A and B)
Graduate Students: JPY 2,000 (for both A and B)
Undergraduate Students: Free (for both A and B)
The Young Investigators Travel Grant for Poster Presenters
Overseas Attendees: Post-doctoral, Graduate and Undergraduate Students who present a poster are eligible (max. 50,000 JPY)
Domestic Attendees: Graduate and Undergraduate Students who present a poster are eligible (max. 30,000 JPY)
To apply for the Young Investigators Travel Grant for Poster Presenters, select “Yes” in the relevant section of the On-line Registration Form and submit your poster abstract by the specified deadline. Eligibility and the grant amount will be determined based on the content of your presentation, your place of residence, and other relevant factors.
Abstract Submission
(Registration by May 31, 2026, is required.)
Submission Period: March 16 (Monday) – June 30 (Tuesday), 2026 (JST)
All submission are processed online.
Download the Abstract Submission Form
Go to the Abstract Submission Site
Poster Preparation Guidelines
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- Poster presentations are open to all attendees.
- Please register and submit an abstract according to the instructions described above.
- Graduate and undergraduate students who present a poster as the first author are eligible for the JSBN Presentation Award. Please indicate your student status in the abstract submission form.
- Please prepare your poster so that it fits within the designated poster panel area. The usable panel dimensions are 210 cm (height) × 90 cm (width) (portrait format).
- The entire poster must be written in English.
- Please include a Conflict of Interest (COI) statement at the end of the poster.
Example
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If you have any questions, please contact us at “jsbn.main(at)gmail.com”.