Similar effect of running on visual and auditory time perception in the ranges of milliseconds and seconds.

Introduction: The ability to accurately encode events' duration is of critical importance for almost all everyday activities, yet numerous factors have been reported to robustly distort time perception. One of these is physical activity (i.e.

Social environment modulates anxiogenic effects of caffeine in zebrafish.

Zebrafish has recently become a species of choice in a number of preclinical studies to examine whether and how psychoactive compounds modulate individual and social behaviors. Here, we sought to contribute an improved understanding of the effects of caffeine, a well-known anxiogenic compound, on the swimming activity and the collective response of zebrafish. To investigate how the social environment influences individual response to acute caffeine treatment, we measured the behavior of a caffeine-treated subject swimming in isolation or in the presence of a group of untreated conspecifics.

Zebrafish response to 3D printed shoals of conspecifics: the effect of body size.

Recent progress in three-dimensional (3D) printing technology has enabled rapid prototyping of complex models at a limited cost. Virtually every research laboratory has access to a 3D printer, which can assist in the design and implementation of hypothesis-driven studies on animal behavior. In this study, we explore the possibility of using 3D printing technology to understand the role of body size in the social behavior of the zebrafish model organism.

Effect of acute ethanol administration on zebrafish tail-beat motion.

Zebrafish is becoming a species of choice in neurobiological and behavioral studies of alcohol-related disorders. In these efforts, the activity of adult zebrafish is typically quantified using indirect activity measures that are either scored manually or identified automatically from the fish trajectory. The analysis of such activity measures has produced important insight into the effect of acute ethanol exposure on individual and social behavior of this vertebrate species.

Live predators, robots, and computer-animated images elicit differential avoidance responses in zebrafish.

Emotional disturbances constitute a major health issue affecting a considerable portion of the population in western countries. In this context, animal models offer a relevant tool to address the underlying biological determinants and to screen novel therapeutic strategies. While rodents have traditionally constituted the species of choice, zebrafish are now becoming a viable alternative.