Subliminal emotional pictures are capable of modulating early cerebral responses to pain in fibromyalgia
Fig 1
Schematic representation of the experimental sequences described in the main text for A) the visual masking task, and B) the picture detection test. A) An example of an A- trial is presented. B) An example of a picture detection test of the same trial (A-)―the sequence of each trial was identical to the one used in the experimental task except for the two questions displayed at the end of each trial: 1) the first, ‘Did you see anything?’ 2) the second, ‘What did you see?’ This question was displayed along with two different pictures: one was the emotional masking picture (belonging to the emotional picture set used in the experimental session); the other was a comparable picture in both emotional category and visual characteristics (shape and colours) to the experimental stimulation (for additional details see [26]).