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Cognitive appraisal of aversive stimulus differs between individuals with contrasting stress coping styles; evidences from selected rainbow trout (Oncorhynchus mykiss) strains
Univ Copenhagen, Dept Biol, Sect Ecol & Evolut, Univ Pk 15,Bldg 3,4th Floor, DK-2100 Copenhagen O, Denmark.;Danish Tech Univ, Inst Aquat Resources, Aquaculture Sect, POB 101, DK-9850 Hirtshals, Denmark..
Uni Res, Uni Res Environm, Integrat Fish Biol, POB 7803, NO-5020 Bergen, Norway..
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Physiology.
Uni Res, Uni Res Environm, Integrat Fish Biol, POB 7803, NO-5020 Bergen, Norway..
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2016 (English)In: Behaviour, ISSN 0005-7959, E-ISSN 1568-539X, Vol. 153, no 13-14, 1567-1587 p.Article in journal (Refereed) Published
Abstract [en]

In animals, personality variations in response to stress and energy demands have been established. Cognitive processing of negative stimuli correlates with stress response patterns. Still, the relative contribution of cognitive appraisal or physiological demands to the behavioural output needs to be clarified. In this study we utilized reactive (high-responsive, HR) and proactive (low-responsive, LR) rainbow trout strains to investigate how contrasting reactions to hypoxia are related to individual variation in metabolism and/or cognition. The HR-LR strains did not differ in standard metabolic rate or hypoxia tolerance. HR trout displayed more pronounced avoidance to a signal cue after being conditioned with hypoxia, suggesting that they experienced this stimulus more aversive than LR trout. Together with differences in forebrain c-fos activation patterns in dorsomedial pallium, these results suggest cognitive differences between the strains. These results demonstrate that differences in personality/stress coping style can be related to contrasts in cognition, which are independent of metabolic differences.

Place, publisher, year, edition, pages
2016. Vol. 153, no 13-14, 1567-1587 p.
Keyword [en]
rainbow trout, stress coping styles, c-fos, conditioned place avoidance, hypoxia, metabolism, telencephalon, dorsomedial pallium
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URN: urn:nbn:se:uu:diva-310692DOI: 10.1163/1568539X-00003405ISI: 000387998100004OAI: oai:DiVA.org:uu-310692DiVA: diva2:1057669
Available from: 2016-12-19 Created: 2016-12-19 Last updated: 2016-12-19Bibliographically approved

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