CBT Effects on Neural, Physiological, and Attentional Responses in Anorexia Nervosa

This randomized controlled trial investigates the neurophysiological, physiological, and attentional effects of Cognitive-Behavioral Therapy (CBT) in individuals with restrictive-type anorexia nervosa (AN). The study compares two groups: one receiving a 12-week CBT intervention, and one placed on a waitlist (no active treatment during the study period). All participants undergo pre- and post-intervention assessments using electroencephalography (EEG), galvanic skin response (GSR), and eye-tracking while exposed to visual stimuli related to food, body image, and self-appearance. The primary outcomes include neural changes in attention and emotional processing (P300, LPP, frontal alpha asymmetry), physiological arousal (skin conductance), and visual attention biases (fixation duration and gaze distribution). The aim is to determine whether CBT leads to measurable improvements in neurobiological and attentional mechanisms related to body image disturbance and food-related anxiety in AN, contributing to biomarker-informed psychotherapy approaches.

NCT Number	NCT07037017
Lead Sponsor	Istanbul Nisantasi University Collaborators: Uskudar University, Beykoz University
Conditions	Eating Disorders (Excluding Anorexia Nervosa)
Enrollment	60 participants
Start Date	2025-05-15
Primary Completion	2025-09-15 (estimated)
Study Completion	2025-10-15 (estimated)
Updated on ClinicalTrials.gov	2025-06-25