Today, I started the experiment with 3 day-old flies.

We found out that they are responding as we thought they were going to do.

There was a white LED in one side of the T-maze, and darkness on the other side.

I run the experiment for 20 seconds, letting them choose between these two conditions. After counting them, I had these results:

82 flies were in the bright side, and 20 were in the dark side.

Tomorrow we will do the same experiment after cutting flies wings, and also we are going to try different LEDs.