2026-04-14T05:06:22Zhttps://recercat.cat/oai/request

oai:recercat.cat:2072/4706132025-10-13T10:49:36Zcom_2072_98col_2072_378192

00925njm 22002777a 4500 dc Marín-Lahoz, Juan author Martínez-Horta, Saul author Pagonabarraga Mora, Javier author Horta, Andrea author Aracil-Bolaños, Ignacio author Bejr-kasem, Helena author Sampedro, Frederic author Campolongo, Antonia author Kulisevsky, Jaime author Universitat Autònoma de Barcelona author 2022 Altres ajuts: Fundació la Marató de TV3 (2014/U/477, 20142910); Fondo Europeo de Desarrollo Regional (FEDER); Pla Estratègic de Recerca i Innovació (SLT008/18); CERCA (CEntres de Recerca de Catalunya); CIBERNED (Centro de Investigación Biomédica en Red de enfermedades NEuroDegenerativas). Objective: This study was undertaken to evaluate whether the feedback-related negativity (FRN)-a neurophysiological marker of incentive processing-can be used to predict the development of impulse control disorders (ICDs) in Parkinson disease (PD). Methods: The longitudinal cohort consisted of consecutive nondemented PD patients with no ICD history. We recorded FRN signals while they performed a gambling task. We calculated the mean amplitude difference between losses and gains (FRNdiff) to be used as a predictor of future ICD development. We performed prospective biannual follow-up assessments for 30 months to detect incident ICDs. Finally, we evaluated how basal FRNdiff was associated with posterior development of ICDs using survival models. Results: Between October 7, 2015 and December 16, 2016, we screened 120 patients. Among them, 94 patients performed the gambling and 92 completed the follow-up. Eighteen patients developed ICDs during follow-up, whereas 74 remained free of ICDs. Baseline FRNdiff was greater in patients who developed ICDs than in those who did not (-2.33μV vs -0.84μV, p = 0.001). No other significant baseline differences were found. The FRNdiff was significantly associated with ICD development in the survival models both when not adjusted (hazard ratio [HR] = 0.73, 95% confidence interval [CI] = 0.58-0.91, p = 0.006) and when controlling for dopamine replacement therapy, sex, and age (HR = 0.74, 95% CI = 0.55-0.97, p = 0.035). None of the impulsivity measures evaluated was related to ICD development. Interpretation: Reward-processing differences measured by FRN signals precede ICD development in PD. This neurophysiological marker permits identification of patients with high risk of ICD development. ANN NEUROL 2022;92:974-984. Biomarkers Disruptive, Impulse Control, and Conduct Disorders Dopamine Agonists Humans Motivation Parkinson Disease Prospective Studies Predicting Impulse Control Disorders in Parkinson Disease through Incentive Biomarkers