Retour au reportage Retour au reportage
20170048_0049

© Cyril FRESILLON/CRCA/CNRS Images

Reference

20170048_0049

Test de reconnaissance sociale chez des souris

Social recognition test on mice. The mouse tested, referred to as the reference mouse, is placed in the middle of a system comprising three chambers linked by doors. A mouse familiar to the reference mouse is placed in a cage in a chamber at one end. Another mouse, not known by the reference mouse, is placed at the other end. A trajectory analysis device quantifies the frequency of interactions between the free mouse and each of the other two mice. The test is performed on mice with Alzheimer’s disease or depression. Depressed mice show the same behaviour towards the individual they know as towards the individual they do not know. This behaviour goes against the natural exploratory tendencies of mice, which would normally tend to approach the unknown mouse.

CNRS Institute(s)

Regional office(s)

CNRS Images,

Our work is guided by the way scientists question the world around them and we translate their research into images to help people to understand the world better and to awaken their curiosity and wonderment.