Response speeds.

<p>(a) Mean reaction times (RTs) to the visual targets (in milliseconds) according to the task (discrimination vs. matching), the engagement of working memory (0-back vs. 1 back) and the type of somatosensory distracter (novel nociceptive vs. standard tactile). Error bars represent confidence intervals <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0020926#pone.0020926-Cousineau1" target="_blank">[28]</a>. (b) Distraction indexes assessed by subtracting the mean RTs to the visual targets that followed a standard tactile distracter from the mean RTs to the visual targets that followed a novel nociceptive distracter. Error bars represent standard deviations.