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Clinical Trial
. 2023 Jul-Aug;16(4):990-998.
doi: 10.1016/j.brs.2023.06.007. Epub 2023 Jun 15.

Participant perceptions of changes in psychosocial domains following participation in an adaptive deep brain stimulation trial

Affiliations
Clinical Trial

Participant perceptions of changes in psychosocial domains following participation in an adaptive deep brain stimulation trial

Amanda R Merner et al. Brain Stimul. 2023 Jul-Aug.

Abstract

Background: There has been substantial controversy in the neuroethics literature regarding the extent to which deep brain stimulation (DBS) impacts dimensions of personality, mood, and behavior.

Objective/hypothesis: Despite extensive debate in the theoretical literature, there remains a paucity of empirical data available to support or refute claims related to the psychosocial changes following DBS.

Methods: A mixed-methods approach was used to examine the perspectives of patients who underwent DBS regarding changes to their personality, authenticity, autonomy, risk-taking, and overall quality of life.

Results: Patients (n = 21) who were enrolled in adaptive DBS trials for Parkinson's disease, essential tremor, obsessive-compulsive disorder, Tourette's syndrome, or dystonia participated. Qualitative data revealed that participants, in general, reported positive experiences with alterations in what was described as 'personality, mood, and behavior changes.' The majority of participants reported increases in quality of life. No participants reported 'regretting the decision to undergo DBS.'

Conclusion(s): The findings from this patient sample do not support the narrative that DBS results in substantial adverse changes to dimensions of personality, mood, and behavior. Changes reported as "negative" or "undesired" were few in number, and transient in nature.

Keywords: Deep brain stimulation; Ethics; Neuroethics; Neuromodulation; Neurotechnology; Personality.

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Conflict of interest statement

Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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