Change response time onset

During the test phase of our experiment, a retrieval cue stimuli is shown, followed by a fixation stimuli and then the actual word simuli (the test item). How do I modify the excel file so that the response time for each trial begins at the onset of the word stimuli instead of at the preceeding fixation stimuli?

In other words, how do we modify the excel file so that the response time begins when the stimuli in column 'W' is presented?

As far as I can tell, your RTs [I]will[/I] be from the onset of the words, so you should be set. The RT is always from the onset of the stimulus in the current "stim, loc, time" set. On an unrelated note, I noticed you have some empty sets that could be deleted (e.g., columns T, U, V). They won't do any harm, but they shouldn't be adding anything functional either.