Parkinson disease patients’ performance in Theory of Mind (ToM) and decision-making tasks with and without Deep Brain Stimulation (DBS)
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Keywords

Theory of mind
Decision-making
Parkinson disease
Deep Brain Stimulation (DBS) Teoría de la mente
Toma de decisiones
Enfermedad de Parkinson
Estimulación Cerebral Profunda (ECP)

How to Cite

Orduz-Bastidas, L., Martínez-Martínez, A., Hurtado-Parrado, C., López-López, W., & Acevedo-Triana, C. (2020). Parkinson disease patients’ performance in Theory of Mind (ToM) and decision-making tasks with and without Deep Brain Stimulation (DBS). Terapia Psicológica, 38(2), 259-282. https://doi.org/10.4067/S0718-48082020000200259

Abstract

Background: Patients with Parkinson’s Disease (PD) show non-motor symptoms, such as cognitive impairment, disrupting executive functions, and mood alterations. Two processes currently researched in these areas are Theory of Mind (ToM) and decision-making in PD patients. ToM is the ability to identify mental states (affective or cognitive) in others, and it is a necessary skill for successful communication in social situations. Decision-making is researched in PD patients due to alterations in dopaminergic pathways involved in cortico-striatal circuits. These pathways have been linked to cognitive functions. Both processes (ToM and decision making) could be altered in PD patients after deep brain stimulation (DBS) therapy. Objective: To compare the performance of PD patients (with and without DBS) and healthy controls (HC) in Theory of Mind and decision-making tasks. Methods: We implemented in three groups of patients (PD, n = 4; PD-DBS, n = 5 and HC, n = 5) the Yoni task to identify affective and cognitive features in ToM, and Iowa Gambling Task (IGT) to assess decision-making. Results: There were no differences across the PD groups in ToM, both in the affective and cognitive features. Regarding decision-making (IGT scores), we obtained results consistent with previous findings, with PD patients showing impairments in this process. Conclusions: Some results suggest that DBS therapy affected PD patients’ decision-making performance when compared to healthy controls. Our results describe some non-motor changes related to DBS often seen in PD patients.

https://doi.org/10.4067/S0718-48082020000200259
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