Predrag Petrovic

Dr. Predrag Petrovic


Research Focus & Metrics

Academic Career Length

25Years (2002-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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4 April 2012 in PLOS ONE
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Journal Article
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TVTorbjörn Vestberg
Torbjörn Vestberg
RGRoland Gustafson
Roland Gustafson
LMLiselotte Maurex
Liselotte Maurex
MIMartin Ingvar
Martin Ingvar
PPPredrag Petrovic
Predrag Petrovic
While the importance of physical abilities and motor coordination is non-contested in sport, more focus has recently been turned toward cognitive processes important for different sports. However, this line of studies has often investigated sport-specific cognitive traits, while few studies have focused on general cognitive traits. We explored if measures of general executive functions can predict the success of a soccer player. The present study used standardized neuropsychological assessment tools assessing players' general executive functions including on-line multi-processing such as creativity, response inhibition, and cognitive flexibility. In a first cross-sectional part of the study we compared the results between High Division players (HD), Lower Division players (LD) and a standardized norm group. The result shows that both HD and LD players had significantly better measures of executive functions in comparison to the norm group for both men and women. Moreover, the HD players outperformed the LD players in these tests. In the second prospective part of the study, a partial correlation test showed a significant correlation between the result from the executive test and the numbers of goals and assists the players had scored two seasons later. The results from this study strongly suggest that results in cognitive function tests predict the success of ball sport players.

25 June 2008 in Journal of Neuroscience
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Journal Article
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PPPredrag Petrovic
Predrag Petrovic
RKRaffael Kalisch
Raffael Kalisch
TSTania Singer
Tania Singer
RDRaymond J. Dolan
Raymond J. Dolan
Social relations between humans critically depend on our affective experiences of others. Oxytocin enhances prosocial behavior, but its effect on humans9 affective experience of others is not known. We tested whether oxytocin influences affective ratings, and underlying brain activity, of faces that have been aversively conditioned. Using a standard conditioning procedure, we induced differential negative affective ratings in faces exposed to an aversive conditioning compared with nonconditioning manipulation. This differential negative evaluative effect was abolished by treatment with oxytocin, an effect associated with an attenuation of activity in anterior medial temporal and anterior cingulate cortices. In amygdala and fusiform gyrus, this modulation was stronger for faces with direct gaze, relative to averted gaze, consistent with a relative specificity for socially relevant cues. The data suggest that oxytocin modulates the expression of evaluative conditioning for socially relevant faces via influences on amygdala and fusiform gyrus, an effect that may explain its prosocial effects.

9 June 2020 in Environmental Science & Technology
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Journal Article
Closed access
LPLauren N. Pincus
Lauren N. Pincus
HRHolly E. Rudel
Holly E. Rudel
PPPredrag V. Petrović
Predrag V. Petrović
SGSrishti Gupta
Srishti Gupta
PWPaul Westerhoff
Paul Westerhoff
JZJulie Beth Zimmerman
Julie Beth Zimmerman

1 January 2002 in Pain
Verified
Journal Article
Closed access
PPPredrag Petrovic
Predrag Petrovic
MIMartin Ingvar
Martin Ingvar

1 July 2010 in Pain
Verified
Journal Article
Closed access
PPPredrag Petrovic
Predrag Petrovic
EKEija Kalso
Eija Kalso
KPKarl Magnus Petersson
Karl Magnus Petersson
JAJesper Andersson
Jesper Andersson
PFPeter Fransson
Peter Fransson
MIMartin Ingvar
Martin Ingvar
Behavioral studies have suggested that placebo analgesia is partly mediated by the endogenous opioid system. Expanding on these results we have shown that the opioid-receptor-rich rostral anterior cingulate cortex (rACC) is activated in both placebo and opioid analgesia. However, there are also differences between the two treatments. While opioids have direct pharmacological effects, acting on the descending pain inhibitory system, placebo analgesia depends on neocortical top-down mechanisms. An important difference may be that expectations are met to a lesser extent in placebo treatment as compared with a specific treatment, yielding a larger error signal. As these processes previously have been shown to influence other types of perceptual experiences, we hypothesized that they also may drive placebo analgesia. Imaging studies suggest that lateral orbitofrontal cortex (lObfc) and ventrolateral prefrontal cortex (vlPFC) are involved in processing expectation and error signals. We re-analyzed two independent functional imaging experiments related to placebo analgesia and emotional placebo to probe for a differential processing in these regions during placebo treatment vs. opioid treatment and to test if this activity is associated with the placebo response. In the first dataset lObfc and vlPFC showed an enhanced activation in placebo analgesia vs. opioid analgesia. Furthermore, the rACC activity co-varied with the prefrontal regions in the placebo condition specifically. A similar correlation between rACC and vlPFC was reproduced in another dataset involving emotional placebo and correlated with the degree of the placebo effect. Our results thus support that placebo is different from specific treatment with a prefrontal top-down influence on rACC.

23 May 2016 in Frontiers in Behavioral Neuroscience
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PPPredrag Petrovic
Predrag Petrovic
FCF. Xavier Castellanos
F. Xavier Castellanos
Deficient cognitive top-down executive control has long been hypothesized to underlie inattention and impulsivity in attention-deficit/hyperactivity disorder (ADHD). However, top-down cognitive dysfunction explains a modest proportion of the ADHD phenotype whereas the salience of emotional dysregulation is being noted increasingly. Together, these two types of dysfunction have the potential to account for more of the phenotypic variance in patients diagnosed with ADHD. We develop this idea and suggest that top-down dysregulation constitutes a gradient extending from mostly non-emotional top-down control processes (i.e., “cool” executive functions) to mainly emotional regulatory processes (including “hot” executive functions). While ADHD has been classically linked primarily to the former, conditions involving emotional instability such as borderline and antisocial personality disorder are closer to the other extreme. In this model, emotional subtypes of ADHD are located at intermediate levels of this gradient. Neuroanatomically, gradations in “cool” processing appear to be related to prefrontal dysfunction involving dorsolateral prefrontal cortex and caudal anterior cingulate cortex, while “hot” processing entails orbitofrontal cortex and rostral anterior cingulate cortex. A similar distinction between systems related to non-emotional and emotional processing appears to hold for the basal ganglia and the neuromodulatory effects of the dopamine system. Overall we suggest that these two systems could be divided according to whether they process non-emotional information related to the exteroceptive environment (associated with “cool” regulatory circuits) or emotional information related to the interoceptive environment (associated with “hot” regulatory circuits). We propose that this framework can integrate ADHD, emotional traits in ADHD, borderline and antisocial personality disorders into a related cluster of mental conditions.