Participants' Perceptions of Deep Brain Stimulation Research for Treatment-Resistant Depression: Risks, Benefits, and...

Area of Science:

• Neuroscience
• Psychiatry
• Medical Ethics

Background:

• Deep brain stimulation (DBS) is a growing area of interest for treatment-resistant depression (TRD).
• Concerns exist regarding risks, uncertain benefits, and therapeutic misconception (TM) in DBS research for TRD.
• Understanding participant perspectives is crucial for ensuring adequate informed consent.

Purpose of the Study:

• To examine the perspectives of individuals considering DBS for TRD.
• To assess participants' understanding of risks, benefits, and potential for therapeutic misconception.
• To evaluate the adequacy of informed consent in this vulnerable population.

Main Methods:

• 31 participants considering DBS studies were surveyed.
• Self-report questionnaires assessed three dimensions of TM.
• Likert-scale items measured perceptions of risks, benefits, and altruism.

Main Results:

• Participants identified surgery as the riskiest procedure but generally perceived DBS studies as moderate risk.
• Participants were more optimistic about others benefiting than personal benefit.
• 64.5% of participants incorrectly answered at least one TM item, indicating mixed understanding.

Conclusions:

• Participants demonstrated reasonable risk/benefit perception and altruistic motivations.
• Evidence of therapeutic misconception was present, despite understanding the experimental nature of DBS for depression.
• Investigators must remain vigilant in identifying and addressing participant misconceptions to ensure robust informed consent.