Cognitive appraisal of environmental stimuli induces emotion-like states in fish.

ABSTRACT: The occurrence of emotions in non-human animals has been the focus of debate over the years. Recently, an interest in expanding this debate to non-tetrapod vertebrates and to invertebrates has emerged. Within vertebrates, the study of emotion in teleosts is particularly interesting since they represent a divergent evolutionary radiation from that of tetrapods, and thus they provide an insight into the evolution of the biological mechanisms of emotion. We report that Sea Bream exposed to stimuli that vary according to valence (positive, negative) and salience (predictable, unpredictable) exhibit different behavioural, physiological and neuromolecular states. Since according to the dimensional theory of emotion valence and salience define a two-dimensional affective space, our data can be in

SUBMITTER: Cerqueira M 

PROVIDER: S-EPMC5640617 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature