Sustained Attention Instability as a Cognitive Biomarker in Chronic Spine Pain: A 90-second Visual Attention Test
Eur J Pain. 2026 May;30(5):e70289. doi: 10.1002/ejp.70289.ABSTRACTBACKGROUND: Chronic spine pain is linked to self-reported cognitive complaints. However, objective markers are lacking. The 90-s Continuous Visual Attention Test (CVAT) quantifies key attention subdomains: reaction time (RT, alertness

