Plenty is doing.
"Cognitive biases associated with anxiety states have now been documented in a substantial number of experimental studies. Greater interference in color-naming emotionally threatening words relative to control Ss has been found in phobic states, panic disorder and generalized anxiety disorder. Although the exact mechanism underlying this effect remains in doubt, the most widely held explanation is that anxious Ss automatically allocate priority to processing threatening information, provided that the content matches their current emotional concerns (Mathews & Klug, 1993, Behav.Res.&Ther.31)."
Disclaimer: this quote appears here only to spark discussion. It is not endorsed one way or the other. Make up your own mind. Or just refresh the page for another viewpoint. From a collection assembled by the late Chris Brand.