Corridor Test in Morris Water Maze

HVS Image gives you a clear, visual and quantitative readout of how directly your subject swam toward the goal. It calculates the percentage of the trial time and swim path spent within a straight “corridor” between the start point and the platform.

You can choose whether to include the corridor measure and, if so, how wide that corridor is – just set the width in the Advanced options in the Circular Mazes Analysis screen (the default value matches the platform diameter). A wider width will be more generous in how tightly the animal has to swim a direct path to be counted.

If you plot paths while the corridor test is selected, the corridor area will be shaded in grey, giving a clear indication of which parts of the path are included in your quantitative results – the percentage of the trial time and swim path spent in the corridor.

It’s a simple but powerful way to add clarity to your analysis:
– Was the animal swimming with intent toward the platform location?
– Did it make a definite and close attempt, even if it missed the target?
– Are your treatment groups using different strategies, even if their latencies are similar?

HVS Image Morris water maze path plot showing Corridor test area shaded and direct swim path within the corridor area.

As always with HVS, the corridor test is built in and easy to use – no extra software, scripting or setup required.