Zebrafish models: do we have valid paradigms for depression?

Depression is a wide-spread, debilitating psychiatric disorder. Mainly rodent-based, experimental animal models of depression are extensively used to probe the pathogenesis of this disorder. Here, we emphasize the need for innovative approaches to studying depression, and call for a wider use of novel model organisms, such as the zebrafish (Danio rerio), in this field. Highly homologous to humans and rodents, zebrafish are rapidly becoming a...