To examine the content specificity of threat-related attentional bias in health anxiety, we applied the drift-diffusion model (DDM) to investigate attentional bias toward three types of threat stimuli (general threat, illness, and symptom words). We recruited 53 undergraduates with severe health anxiety (the health anxiety group, HAG) and 53 controls (the control group, CG) to complete the dot-probe task. We calculated traditional bias scores and non-decision time (a DDM parameter) bias scores, and they were subjected to a 2 (Group: HAG, CG) x 3 (Threat: general threat, illness, and symptom wo...
