I have an eye tracking experiment where single sentences appear on the screen in a single horizontal row. They are different lengths. I’m trying to get the fixation cross to appear at the same spot where the middle (or beginning, whichever is possible) of the first word of the following sentence will appear. This way people will always start fixations from the first word instead of chasing it on the screen.
I tried left/right aligning both cross and sentences, but they kept appearing in different parts of the screen.
I work with Eyelink 1000plus