Aberrant neural signatures of decision-making

Aberrant neural signatures of decision-making: Pathological gamblers display cortico-striatal hypersensitivity to extreme gambles

Research output: Contribution to journal › Journal article › Research › peer-review

Standard

Aberrant neural signatures of decision-making : Pathological gamblers display cortico-striatal hypersensitivity to extreme gambles. / Gelskov, Sofie V; Madsen, Kristoffer H.; Ramsøy, Thomas Z; Siebner, Hartwig R.

In: NeuroImage, Vol. 128, 03.2016, p. 342-352.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Gelskov, SV, Madsen, KH, Ramsøy, TZ & Siebner, HR 2016, 'Aberrant neural signatures of decision-making: Pathological gamblers display cortico-striatal hypersensitivity to extreme gambles', NeuroImage, vol. 128, pp. 342-352. https://doi.org/10.1016/j.neuroimage.2016.01.002

APA

Gelskov, S. V., Madsen, K. H., Ramsøy, T. Z., & Siebner, H. R. (2016). Aberrant neural signatures of decision-making: Pathological gamblers display cortico-striatal hypersensitivity to extreme gambles. NeuroImage, 128, 342-352. https://doi.org/10.1016/j.neuroimage.2016.01.002

Vancouver

Gelskov SV, Madsen KH, Ramsøy TZ, Siebner HR. Aberrant neural signatures of decision-making: Pathological gamblers display cortico-striatal hypersensitivity to extreme gambles. NeuroImage. 2016 Mar;128:342-352. https://doi.org/10.1016/j.neuroimage.2016.01.002

Author

Gelskov, Sofie V ; Madsen, Kristoffer H. ; Ramsøy, Thomas Z ; Siebner, Hartwig R. / Aberrant neural signatures of decision-making : Pathological gamblers display cortico-striatal hypersensitivity to extreme gambles. In: NeuroImage. 2016 ; Vol. 128. pp. 342-352.

Bibtex

@article{caa8ed30867a407b936d7954b3c446f3,

title = "Aberrant neural signatures of decision-making: Pathological gamblers display cortico-striatal hypersensitivity to extreme gambles",

abstract = "Pathological gambling is an addictive disorder characterized by an irresistible urge to gamble despite severe consequences. One of the hallmarks of pathological gambling is maladaptive and highly risky decision-making, which has been linked to dysregulation of reward-related brain regions such as the ventral striatum. However, previous studies have produced contradictory results regarding the implication of this network, revealing either hypo- or hypersensitivity to monetary gains and losses. One possible explanation is that the gambling brain might be misrepresenting the benefits and costs when weighting the potential outcomes, and not the gains and losses per se. To address this issue, we investigated whether pathological gambling is associated with abnormal brain activity during decisions that weight the utility of possible gains against possible losses. Pathological gamblers and healthy human subjects underwent functional magnetic resonance imaging while they accepted or rejected mixed gain/loss gambles with fifty-fifty chances of winning or losing. Contrary to healthy individuals, gamblers showed a U-shaped response profile reflecting hypersensitivity to the most appetitive and most aversive bets in an executive cortico-striatal network including the dorsolateral prefrontal cortex and caudate nucleus. This network is concerned with the evaluation of action-outcome contingencies, monitoring recent actions and anticipating their consequences. The dysregulation of this specific network, especially for extreme bets with large potentials consequences, offers a novel understanding of the neural basis of pathological gambling in terms of deficient associations between gambling actions and their financial impact.",

keywords = "Journal Article, Research Support, Non-U.S. Gov't",

author = "Gelskov, {Sofie V} and Madsen, {Kristoffer H.} and Rams{\o}y, {Thomas Z} and Siebner, {Hartwig R}",

year = "2016",

month = mar,

doi = "10.1016/j.neuroimage.2016.01.002",

language = "English",

volume = "128",

pages = "342--352",

journal = "NeuroImage",

issn = "1053-8119",

publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Aberrant neural signatures of decision-making

T2 - Pathological gamblers display cortico-striatal hypersensitivity to extreme gambles

AU - Gelskov, Sofie V

AU - Madsen, Kristoffer H.

AU - Ramsøy, Thomas Z

AU - Siebner, Hartwig R

PY - 2016/3

Y1 - 2016/3

N2 - Pathological gambling is an addictive disorder characterized by an irresistible urge to gamble despite severe consequences. One of the hallmarks of pathological gambling is maladaptive and highly risky decision-making, which has been linked to dysregulation of reward-related brain regions such as the ventral striatum. However, previous studies have produced contradictory results regarding the implication of this network, revealing either hypo- or hypersensitivity to monetary gains and losses. One possible explanation is that the gambling brain might be misrepresenting the benefits and costs when weighting the potential outcomes, and not the gains and losses per se. To address this issue, we investigated whether pathological gambling is associated with abnormal brain activity during decisions that weight the utility of possible gains against possible losses. Pathological gamblers and healthy human subjects underwent functional magnetic resonance imaging while they accepted or rejected mixed gain/loss gambles with fifty-fifty chances of winning or losing. Contrary to healthy individuals, gamblers showed a U-shaped response profile reflecting hypersensitivity to the most appetitive and most aversive bets in an executive cortico-striatal network including the dorsolateral prefrontal cortex and caudate nucleus. This network is concerned with the evaluation of action-outcome contingencies, monitoring recent actions and anticipating their consequences. The dysregulation of this specific network, especially for extreme bets with large potentials consequences, offers a novel understanding of the neural basis of pathological gambling in terms of deficient associations between gambling actions and their financial impact.

AB - Pathological gambling is an addictive disorder characterized by an irresistible urge to gamble despite severe consequences. One of the hallmarks of pathological gambling is maladaptive and highly risky decision-making, which has been linked to dysregulation of reward-related brain regions such as the ventral striatum. However, previous studies have produced contradictory results regarding the implication of this network, revealing either hypo- or hypersensitivity to monetary gains and losses. One possible explanation is that the gambling brain might be misrepresenting the benefits and costs when weighting the potential outcomes, and not the gains and losses per se. To address this issue, we investigated whether pathological gambling is associated with abnormal brain activity during decisions that weight the utility of possible gains against possible losses. Pathological gamblers and healthy human subjects underwent functional magnetic resonance imaging while they accepted or rejected mixed gain/loss gambles with fifty-fifty chances of winning or losing. Contrary to healthy individuals, gamblers showed a U-shaped response profile reflecting hypersensitivity to the most appetitive and most aversive bets in an executive cortico-striatal network including the dorsolateral prefrontal cortex and caudate nucleus. This network is concerned with the evaluation of action-outcome contingencies, monitoring recent actions and anticipating their consequences. The dysregulation of this specific network, especially for extreme bets with large potentials consequences, offers a novel understanding of the neural basis of pathological gambling in terms of deficient associations between gambling actions and their financial impact.

KW - Journal Article

KW - Research Support, Non-U.S. Gov't

U2 - 10.1016/j.neuroimage.2016.01.002

DO - 10.1016/j.neuroimage.2016.01.002

M3 - Journal article

C2 - 26780575

VL - 128

SP - 342

EP - 352

JO - NeuroImage

JF - NeuroImage

SN - 1053-8119

ER -

ID: 164620709

Department of Clinical Medicine