Diminishing Risk-Taking Behavior by Modulating Activity in the Prefrontal Cortex: A Direct Current Stimulation Study
Open accessAbstract
Studies have shown increased risk taking in healthy individuals after low-frequency repetitive transcranial magnetic stimulation, known to transiently suppress cortical excitability, over the right dorsolateral prefrontal cortex (DLPFC). It appears, therefore, plausible that differential modulation of DLPFC activity, increasing the right while decreasing the left, might lead to decreased risk taking, which could hold clinical relevance as excessively risky decision making is observed in clinical populations leading to deleterious consequences. The goal of the present study was to investigate whether risk-taking behaviors could be decreased using concurrent anodal transcranial direct current stimulation (tDCS) of the right DLPFC, which allows upregulation of brain activity, with cathodal tDCS of the left DLPCF, which downregulates activity. Thirty-six healthy volunteers performed the risk task while they received either anodal over the right with cathodal over the left DLPFC, anodal over the left with cathodal over the right DLPFC, or sham stimulation. We hypothesized that right anodal/left cathodal would decrease risk-taking behavior compared with left anodal/right cathodal or sham stimulation. As predicted, during right anodal/left cathodal stimulation over the DLPFC, participants chose more often the safe prospect compared with the other groups. Moreover, these participants appeared to be insensitive to the reward associated with the prospects. These findings support the notion that the interhemispheric balance of activity across the DLPFCs is critical in decision-making behaviors. Most importantly, the observed suppression of risky behaviors suggests that populations with boundless risk-taking behaviors leading to negative real-life consequences, such as individuals with addiction, might benefit from such neuromodulation-based approaches.
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In healthy people, tDCS alters inhibitory control, planning, delay discounting, and risk taking.
“Transcranial direct current stimulation (tDCS) is another promising, low-risk, noninvasive neuromodulation technique that has effects on inhibitory control, planning, delay discounting, and risk taking in healthy individuals (289-291).”
From A brain-centric model of suicidal behavior (2020) · cites this paper as [291]
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- Authors
- Fecteau, S., Knoch, D., Fregni, F., Sultani, N., Boggio, P., & Pascual-Leone, A.
- Affiliations
- Beth Israel Deaconess Medical Center (US)
- University of Zurich (CH)
- Universidade Presbiteriana Mackenzie (BR)
- Venue
- The Journal of Neuroscience
- Publisher
- Society for Neuroscience
- Published
- 2007-11-14
- Volume
- 27
- Issue
- 46
- Pages
- 12500-12505
- ISSN
- 0270-6474 (ISSN-L)
- 1529-2401
- PMC
- PMC6673338
- OpenAlex
- W2170148494
- Cited by
- 470
- References
- 47
- Citations by year
- 2026: 7 · 2025: 17 · 2024: 10 · 2023: 18 · 2022: 19 · 2021: 26 · 2020: 24 · 2019: 31 · 2018: 38 · 2017: 20 · 2016: 33 · 2015: 36 · 2014: 47 · 2013: 33 · 2012: 28
- FWCI
- 11.22
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- BORIS (University Library Bern) (submittedVersion)
- Funders
- National Institutes of Health (RR 01032, RO1-EY12091)
- Canadian Institutes of Health Research
- National Institute of Mental Health (R01MH069898)
- National Eye Institute (R01 EY12091, R01EY012091)
- National Institute on Deafness and Other Communication Disorders (R01 DC 05672, R01DC005672)
- National Institute of Diabetes and Digestive and Kidney Diseases (R03DK071851)
- National Institute of Neurological Disorders and Stroke (R01-NS 47754, R01 NS 20068, R01NS047754)
- National Institute of Biomedical Imaging and Bioengineering (R01EB005047)
- National Center for Research Resources (K24RR018875, M01-RR-01032, M01RR001032, MO1-RR01032)
- Topics
- Life Sciences › Neuroscience › Neurology › Transcranial Magnetic Stimulation Studies
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
- Social Sciences › Decision Sciences › General Decision Sciences › Decision-Making and Behavioral Economics
- Keywords
- risk-taking, dorsolateral prefrontal cortex, transcranial direct current stimulation, anodal stimulation, cathodal stimulation, interhemispheric balance, decision-making, decision making under risk, reward sensitivity, neuromodulation, addiction
- MeSH terms
- Adult, Behavior, Mental Disorders, Corpus Callosum, Decision Making, Electric Stimulation, Evoked Potentials, Female, Humans, Judgment, Functional Laterality, Male, Neural Inhibition, Neural Pathways, Reward, Risk-Taking, Prefrontal Cortex
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