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Article: Deep brain stimulation of the nucleus accumbens shell increases impulsive behavior and tissue levels of dopamine and serotonin

TitleDeep brain stimulation of the nucleus accumbens shell increases impulsive behavior and tissue levels of dopamine and serotonin
Authors
KeywordsDopamine
Impulsive behavior
Serotonin
Nucleus accumbens
High frequency stimulation
Issue Date2010
Citation
Experimental Neurology, 2010, v. 225, n. 2, p. 302-309 How to Cite?
AbstractThe nucleus accumbens (NAc) is gaining interest as a target for deep brain stimulation (DBS) in refractory neuropsychiatric disorders with impulsivity as core symptom. The nucleus accumbens is composed of two subterritories, core and shell, which have different anatomical connections. In animal models, it has been shown that DBS of the NAc changes impulsive action. Here, we tested the hypothesis that a change in impulsive action by DBS of the NAc is associated with changes in dopamine levels. Rats received stimulating electrodes either in the NAc core or shell, and underwent behavioral testing in a reaction time task. In addition, in a second experiment, the effect of DBS of the NAc core and shell on extracellular dopamine and serotonin levels was assessed in the NAc and medial prefrontal cortex. Control subjects received sham surgery. We have found that DBS of the NAc shell stimulation induced more impulsive action but less perseverative checking. These effects were associated with increased levels of dopamine and serotonin in the NAc, but not in the medial prefrontal cortex. DBS of the NAc core had no effect on impulsive action, but decreased perseverative responses indicative of a better impulse control. In these subjects, no effects were found on neurotransmitter levels. Our data point out that DBS of the NAc shell has negative effects on impulsive action which is accompanied by increases of dopamine and serotonin levels in the NAc, whereas DBS of the NAc core has beneficial behavioral effects. © 2010 Elsevier Inc.
Persistent Identifierhttp://hdl.handle.net/10722/219861
ISSN
2015 Impact Factor: 4.657
2015 SCImago Journal Rankings: 2.427

 

DC FieldValueLanguage
dc.contributor.authorSesia, Thibaut-
dc.contributor.authorBulthuis, Vincent-
dc.contributor.authorTan, Sonny-
dc.contributor.authorLim, Lee Wei-
dc.contributor.authorVlamings, Rinske-
dc.contributor.authorBlokland, Arjan-
dc.contributor.authorSteinbusch, Harry W M-
dc.contributor.authorSharp, Trevor-
dc.contributor.authorVisser-Vandewalle, Veerle-
dc.contributor.authorTemel, Yasin-
dc.date.accessioned2015-09-24T04:44:09Z-
dc.date.available2015-09-24T04:44:09Z-
dc.date.issued2010-
dc.identifier.citationExperimental Neurology, 2010, v. 225, n. 2, p. 302-309-
dc.identifier.issn0014-4886-
dc.identifier.urihttp://hdl.handle.net/10722/219861-
dc.description.abstractThe nucleus accumbens (NAc) is gaining interest as a target for deep brain stimulation (DBS) in refractory neuropsychiatric disorders with impulsivity as core symptom. The nucleus accumbens is composed of two subterritories, core and shell, which have different anatomical connections. In animal models, it has been shown that DBS of the NAc changes impulsive action. Here, we tested the hypothesis that a change in impulsive action by DBS of the NAc is associated with changes in dopamine levels. Rats received stimulating electrodes either in the NAc core or shell, and underwent behavioral testing in a reaction time task. In addition, in a second experiment, the effect of DBS of the NAc core and shell on extracellular dopamine and serotonin levels was assessed in the NAc and medial prefrontal cortex. Control subjects received sham surgery. We have found that DBS of the NAc shell stimulation induced more impulsive action but less perseverative checking. These effects were associated with increased levels of dopamine and serotonin in the NAc, but not in the medial prefrontal cortex. DBS of the NAc core had no effect on impulsive action, but decreased perseverative responses indicative of a better impulse control. In these subjects, no effects were found on neurotransmitter levels. Our data point out that DBS of the NAc shell has negative effects on impulsive action which is accompanied by increases of dopamine and serotonin levels in the NAc, whereas DBS of the NAc core has beneficial behavioral effects. © 2010 Elsevier Inc.-
dc.languageeng-
dc.relation.ispartofExperimental Neurology-
dc.subjectDopamine-
dc.subjectImpulsive behavior-
dc.subjectSerotonin-
dc.subjectNucleus accumbens-
dc.subjectHigh frequency stimulation-
dc.titleDeep brain stimulation of the nucleus accumbens shell increases impulsive behavior and tissue levels of dopamine and serotonin-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.expneurol.2010.06.022-
dc.identifier.pmid20615406-
dc.identifier.scopuseid_2-s2.0-77956450415-
dc.identifier.volume225-
dc.identifier.issue2-
dc.identifier.spage302-
dc.identifier.epage309-
dc.identifier.eissn1090-2430-

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