3 documents found, page 1 of 1
Sex differences in social buffering and social contagion of alarm responses in ...
Akinrinade, Ibukun; Varela, Susana.A.M.; Oliveira, Rui FilipeThe alarm substance in fsh is a pheromone released by injured individuals after a predator attack. When detected by other fsh, it triggers fear/defensive responses, such as freezing and erratic movement behaviours. Such responses can also help other fsh in the shoal to modulate their own behaviours: decreasing a fear response if conspecifcs have not detected the alarm substance (social bufering) or triggering a...
Evolutionarily conserved role of oxytocin in social fear contagion in zebrafish
Akinrinade, Ibukun; Kareklas, Kyriacos; Teles, Magda C; Reis, Thais K.; Gliksberg, Michael; Petri, Giovanni; Levkowitz, Gil; Oliveira, Rui F.Emotional contagion is the most ancestral form of empathy. We tested to what extent the proximate mechanisms of emotional contagion are evolutionarily conserved by assessing the role of oxytocin, known to regulate empathic behaviors in mammals, in social fear contagion in zebrafish. Using oxytocin and oxytocin receptor mutants, we show that oxytocin is both necessary and sufficient for observer zebrafish to imi...
Sex differences in aggression are paralleled by differential activation of the ...
Scaia, Maria Florencia; Akinrinade, Ibukun; Petri, Giovanni; Oliveira, Rui F.Although aggression is more prevalent in males, females also express aggressive behaviors and in specific ecological contexts females can be more aggressive than males. The aim of this work is to assess sex differences in aggression and to characterize the patterns of neuronal activation of the social-decision making network (SDMN) in response to intra-sexual aggression in both male and female zebrafish. Adult ...