6. Disparity between both cochleae

To obtain the disparity between both cochleae of the loaded aedat file, click on Tools->"Disparity between cochleae" or on the button of the vertical toolbar that can be seen in the next image.

NAVIS Tool allows the user to know the difference between the left and the right cochleae, so that the predominant one in a particular time period can be identified. This will be extremely useful in echolocation tasks because it will give us information about from where the sound is coming.

Blue represents the lowest spike rate. Red represents the right cochlea predominance, while green represents the left cochlea predominance, both measured in spike rate difference. Full green or red values represents the highest spike rate. Although the highest spike rate is a value that cannot be changed (197 in the image), the scrollbar gives the user the opportunity to swap the maximum value to a different one. The user can also save the image to a PNG file or reset the scrollbar to its default value.

This tool will only be accessible if the loaded file corresponds to a stereo cochlea.

The pseudocode of this functionality is shown in the image below.