Rotation assistant

The rotation assistant, equipped with an automatic coiler, allows coupling the analysis of the behavior and techniques such as electrophysiology and optogenetics in large mazes.



An animal that freely moves in an arena naturally spins round and round. If wires, fibers or tubes are connected to the animal they will necessarily turn around and quickly tangle. This leads to the creation of a resistance that influences the locomotor activity of the animal.



Our rotation assistant is a solution to this problem, because:

  • it leads the rotation of a commutator (electric, optic, liquid) according to the rotative movements applied by the animal. The rotation of the animal is transmitted to the commutators located above through ou sensors and on-board electronics.
  • it manages in real time the slack of a rubber band that is attached to the cables / fibers / tubes, to compensate the traction of the animal on the system.

This equipment is particularly recommended to couple the analysis of the behavior with other techniques in large mazes, e.g.:

  • Radial maze,
  • Water maze,
  • Openfield,
  • etc…