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Long photoperiod impairs learning in male but not female medaka

López-Olmeda, Jose Fernando; Zhao, Haiyu 1; Reischl, Markus 2; Pylatiuk, Christian 2; Lucon-Xiccato, Tyrone; Loosli, Felix 1; Foulkes, Nicholas S. 1
1 Institut für Technik der Informationsverarbeitung (ITIV), Karlsruher Institut für Technologie (KIT)
2 Karlsruher Institut für Technologie (KIT)

Abstract:

Day length in conjunction with seasonal cycles affects many aspects of animal biology. We have studied photoperiod-dependent alterations of complex behavior in the teleost, medaka (Oryzias latipes), a photoperiodic breeder, in a learning paradigm whereby fish have to activate a sensor to obtain a food reward.Medaka were tested under a long (14:10 LD) and short (10:14 LD) photoperiod in three different groups:mixed-sex, all-males, and all-females. Under long photoperiod, medaka mixed-sex groups learned rapidly with a stable response. Unexpectedly, males-only groups showed a strong learning deficit, whereas females- only groups performed efficiently. In mixed-sex groups, female individuals drove group learning, whereas males apparently prioritized mating over feeding behavior resulting in strongly reduced learning performance. Under short photoperiod, wheremedaka do notmate,male performance improved to a level similar to that of females. Thus, photoperiod has sex-specific effects on the learning performance of a seasonal vertebrate.


Verlagsausgabe §
DOI: 10.5445/IR/1000135101
Veröffentlicht am 21.11.2021
Originalveröffentlichung
DOI: 10.1016/j.isci.2021.102784
Scopus
Zitationen: 4
Web of Science
Zitationen: 3
Dimensions
Zitationen: 4
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Automation und angewandte Informatik (IAI)
Institut für Biologische und Chemische Systeme (IBCS)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 06.2021
Sprache Englisch
Identifikator ISSN: 2589-0042
KITopen-ID: 1000135101
HGF-Programm 47.14.02 (POF IV, LK 01) Information Storage and Processing in the Cell Nucleus
Erschienen in iScience
Verlag Cell Press
Band 24
Heft 7
Seiten Art. Nr.: 102784
Vorab online veröffentlicht am 25.06.2021
Nachgewiesen in Dimensions
Scopus
Web of Science
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