... by The Company of Biologists Ltd 2021 Summary: Dopamine has opposing effects on crayfish agonistic behaviour: the dopamine system is downstream of octopamine for inhibition, whereas its facilitating effect is due to activation of mutual parallel pathways with serotonin. Social status Serotonin...

...Rosa M. Alcazar; Austin T. Hilliard; Lisa Becker; Michael Bernaba; Russell D. Fernald Life experiences can alter cognitive abilities and subsequent behavior. Here we asked whether differences in experience could affect social status. In hierarchical animal societies, high-ranking males...

... for correspondence (e-mail: christine.crish@vanderbilt.edu ) 25 9 2007 © The Company of Biologists Limited 2007 2007 eusocial vertebrae bone social status puberty reproduction The authors thank Dr I. K. Ash and Dr M. S. Dietrich for help with statistical analyses. Also, we...

... to preferentially become dominant from 86% to 40% of pairs. To investigate one potential mechanism underlying the apparent effect of cortisol in predisposing trout to low social status, fish were treated with cortisol or cortisol+RU486 for 5 days, after which brain monoamines [5-hydroxytryptamine (5-HT); dopamine...