This folder contains the localiser experiment to test. One run has a duration of ~= 12min
For everything to work properly:
- don't change or move any files/folders
- to end (break the loop) press Ctrl+C -> your data will be saved anyway
- you can also press "esc" instead of a "normal" trial response
Caution: Extremely boring :D (especially very long! 744 secs, or 12.4 mins)
Some examples of the images used in the localiser (along with their phase scrambled counter parts) are:
There are 10-second blocks, alternated by 10 seconds of fixation with a 12-second fixation period at the beginning and end of the run.
Subjects view grayscale images of either intact or scrambled faces, hands or instruments. Images from all categories are presented in 36 blocks in total (one image category per block), with 6 blocks per condition. A condition is never repeated twice in a row and the order of conditions is counterbalanced across subjects. A block consists of 10 images in a random order, all images are repeated three times during the whole localiser run. Each image appears for 500ms, followed by a 500ms interstimulus interval.
The task is to detect a rare and brief colour change of the stimulus by pressing a button with the right index finger. In each block, there are two targets (blue: HSV profile 1.0, 1.0, 0.8). One colour change occurs per block half, but never during the first stimulus of a block. Subjects are instructed to fixate on its central intersection at all times.