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Program & Abstract Book - EPFL Latsis Symposium 2009

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<strong>EPFL</strong> <strong>Latsis</strong> <strong>Symposium</strong> <strong>2009</strong>: Understanding Violence<br />

P-24<br />

78<br />

February 11-13 <strong>2009</strong><br />

ne u r a l co r r e l a t e s o f aD a p t i v e Decision<br />

ma k i n g u n D e r un c e r t a i n t y in vi o l e n t<br />

cr m i n a l of f e n D e r s w i t h ps y c h o p a t h y<br />

a m D bo r D e r l i n e pe r s o n a l i t y Di s o r D e r<br />

Prehn, Kristin 1 ; Schlagenhauf, Florian 2 ; Schulze, Lars 1 ;<br />

Berger, Christoph 1 ; Vohs, Knut 1 ; Wagner, Sabine 3 ; Hauenstein,<br />

Karlheinz 3 ; Domes, Gregor 4 ; Herpertz, Sabine C. 1<br />

1 Dept. of Psychiatry and Psychotherapy, Rostock University, Rostock,<br />

Germany; 2 Dept. of Psychiatry, Charité University Medicine,<br />

Berlin, Germany; 3 Department of Radiology, Rostock University,<br />

Rostock, Germany; 4 Dept. of Psychology, University of Zurich,<br />

Zurich, Switzerland<br />

In everyday life individuals are required to make decisions that bear a certain<br />

degree of uncertainty regarding potential gains and losses. Individuals<br />

differ with respect to their ability to adjust their choices and behavior in<br />

the face of higher risk.<br />

To investigate the neural systems mediating these differences, we presented<br />

healthy controls (n=13) and two groups of criminal offenders [11<br />

patients with psychopathy as defined by the Hare Psychopathy Checklist<br />

and 12 patients with DSM-IV borderline personality disorder (BPD)] with<br />

the Behavioral Investment Allocation Strategy task (Kuhnen &Knutson,<br />

2005) and monitored brain activity using fMRI. During this task, participants<br />

were required to choose between two stocks and a bond. At the<br />

beginning of an experimental block one of the two stocks was randomly<br />

assigned to be the “good” (+10 €) or the “bad” stock ( 10 €) without the<br />

participants´ knowledge. The bond always paid 1 Euro.<br />

When uncertainty which stock to choose was high (e.g., at the beginning<br />

of a block) controls showed adaptive risk-avoidant behavior (i.e.,<br />

were more likely to choose the bond). Chosing the bond in trials with high<br />

uncertainty was preceded by increased activity in a functional network<br />

including insula, inferior frontal gyrus (IFG), and pre-supplementary motor<br />

area. Uncertainty was represented in rostral anterior cingulate gyrus<br />

(rACC). Criminal offenders with BPD did not choose more bonds when<br />

uncertainty was high. This risk-seeking behavior was accompanied by less<br />

activity in IFG before choosing the bond in contrast to controls. Psychopaths<br />

only differed from controls by decreased activity in rACC reflecting a<br />

deficit to emotionally represent uncertainty.<br />

These results support the theory that criminal offenders with psychopathy<br />

are characterized by a lack of emotion, whereas criminal offenders with<br />

BPD show a more pronounced deficit in behavioral control to adjust their<br />

choices in the face of higher risk.

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