By using Optogentics - Nature magazine´s choice as Method of the Year 2010 - researchers are now capable to control particular cellular behaviors by light stimuli. In an extended manner even brain regions can be addressed and therefore behavior can be influenced.
In the March 2011 issue of Nature Karl Deisseroth

and co-workers combined Optogentics with anxiety-assays and electrophysiology to unravel a circuit between basolateral amygdala and the central nucleus of the amygdala as a critical element in the control of acute anxiety in the mammalian brain.
By using Viewer tracking software in combination with BIOBSERVE´s TTL-Output Boxes,

you are able to trigger laser and any other stimuli dependent on the animals's position and/or point in time of the experiment. Simultaneously experiments are recorded (digital video) and behavior analysis data and position data are saved.
This hardware-software-package is customizable for any kind of active and passive avoidance tests.