Back to Search
Start Over
Betting on DBS: Effects of subthalamic nucleus deep brain stimulation on risk taking and decision making in patients with Parkinson’s disease
- Source :
- Neuropsychology. 29:622-631
- Publication Year :
- 2015
- Publisher :
- American Psychological Association (APA), 2015.
-
Abstract
- Objective: Concerns persist that deep brain stimulation (DBS) for Parkinson’s disease (PD) increases impulsivity or induces excessive reward seeking. We report here the performance of PD patients with implanted subthalamic nucleus electrodes, with stimulation on and off, on 3 laboratory tasks of risk taking and decision making. They are compared with PD patients maintained on medication and healthy participants. Methods and Results: In the Game of Dice Task, a test of “risky” decision making, PD patients with or without DBS made highest risk bets more often and ended up with less money than did healthy participants. There was a trend for DBS stimulation to ameliorate this effect. Deal or No-Deal is an “ambiguous” decision-making task that assessed preference for risk (holding on to one’s briefcase) over a “sure thing” (accepting the banker’s offer). Here, DBS patients were more conservative with stimulation on than with it off. They accepted smaller offers from the banker and won less money in the DBS-on condition. Overall, the 2 PD groups won less money than did healthy participants. The Framing Paradigm assessed willingness to gamble on a fixed (unambiguous) prize depending on whether the reward was “framed” as a loss or a gain. Nonsurgical PD patients tended to be more risk-averse than were healthy participants, whereas DBS patients were more willing to gamble for gains as well as losses both on and off stimulation. Conclusions: On risky decision-making tasks, DBS patients took more risks than did healthy participants, but stimulation may temper this tendency. In contrast, in an ambiguous-risk situation, DBS patients were more risk-averse (conservative) than were healthy participants, and this tendency was greatest with stimulation.
- Subjects :
- Male
medicine.medical_specialty
Parkinson's disease
Deep brain stimulation
Deep Brain Stimulation
medicine.medical_treatment
Decision Making
Stimulation
Neuropsychological Tests
Impulsivity
behavioral disciplines and activities
Article
Cognition
Risk-Taking
Sex Factors
Physical medicine and rehabilitation
Reward
Subthalamic Nucleus
medicine
Humans
In patient
Psychiatry
Aged
Aged, 80 and over
Age Factors
Parkinson Disease
Middle Aged
medicine.disease
Subthalamic nucleus
Neuropsychology and Physiological Psychology
Gambling
Educational Status
Female
medicine.symptom
Risk taking
Psychology
Subjects
Details
- ISSN :
- 19311559 and 08944105
- Volume :
- 29
- Database :
- OpenAIRE
- Journal :
- Neuropsychology
- Accession number :
- edsair.doi.dedup.....aa73158938b01df163f359b90a9d13a6