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ePoster
THE RELATIONSHIP BETWEEN ORTHOREXIA NERVOSA TENDENCIES AND BEHAVIORAL AND NEUROPHYSIOLOGICAL INDICATORS OF COGNITIVE FLEXIBILITY
Saliha Şahintürk-Şentürkand 4 co-authors
Istanbul Medipol University
FENS Forum 2026 (2026)
Barcelona, Spain
Board PS06-09PM-336
Presentation
Date TBA
Board: PS06-09PM-336
Event Information
Poster Board
PS06-09PM-336
Poster
View posterAbstract
Background: Orthorexia Nervosa (ON) is characterized by tendencies such as applying strict rules to food selection and eating patterns, and glorifying healthy foods. Cognitive flexibility refers to the ability to quickly adapt thoughts and behaviors to changing conditions. Impairments in cognitive flexibility are commonly observed in eating disorders.
Method: In this study (n=12), the relationship between participants' TON-17 scale scores, reflecting ON tendencies, and behavioral and electrophysiological indicators of cognitive flexibility was examined. Performance was evaluated using a cue-based task-switching paradigm, based on reaction time (RT)-derived switch cost. EEG data were analyzed for stimulus-locked theta power (4–7 Hz), with power density values obtained from the Cz, F3, FC3, and FC4 electrodes in the midfrontal region. Analyses focused on correlation measures.
Results: A positive but non-significant association was observed between TON-17 scores and switch cost (r = 0.518, p = 0.084). No statistically significant relationship was found between TON-17 scores and midfrontal theta power (r = -0.063, p = 0.845).
Conclusion: These preliminary findings suggest that ON tendencies do not exhibit significant relationships with cognitive and neural indicators of flexibility, serving as foundational data for future large-scale analyses.
Method: In this study (n=12), the relationship between participants' TON-17 scale scores, reflecting ON tendencies, and behavioral and electrophysiological indicators of cognitive flexibility was examined. Performance was evaluated using a cue-based task-switching paradigm, based on reaction time (RT)-derived switch cost. EEG data were analyzed for stimulus-locked theta power (4–7 Hz), with power density values obtained from the Cz, F3, FC3, and FC4 electrodes in the midfrontal region. Analyses focused on correlation measures.
Results: A positive but non-significant association was observed between TON-17 scores and switch cost (r = 0.518, p = 0.084). No statistically significant relationship was found between TON-17 scores and midfrontal theta power (r = -0.063, p = 0.845).
Conclusion: These preliminary findings suggest that ON tendencies do not exhibit significant relationships with cognitive and neural indicators of flexibility, serving as foundational data for future large-scale analyses.
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