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  The effects of life stress and neural learning signals on fluid intelligence

Friedel, E., Schlagenhauf, F., Beck, A., Dolan, R. J., Huys, Q. J., Rapp, M. A., et al. (2015). The effects of life stress and neural learning signals on fluid intelligence. European Archives of Psychiatry and Clinical Neuroscience, 265(1), 35-43. doi:10.1007/s00406-014-0519-3.

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 Creators:
Friedel, Eva1, Author
Schlagenhauf, Florian1, 2, Author           
Beck, Anne1, Author
Dolan, Raymond J.3, Author
Huys, Quentin J.M.3, 4, 5, Author
Rapp, Michael A.1, 6, Author
Heinz, Andreas1, 7, Author
Affiliations:
1Department of Psychiatry and Psychotherapy, Charité University Medicine Berlin, Germany, ou_persistent22              
2Max Planck Fellow Group Cognitive and Affective Control of Behavioural Adaptation, MPI for Human Cognitive and Brain Sciences, Max Planck Society, Leipzig, DE, ou_1753350              
3Gatsby Computational Neuroscience Unit, University College London, United Kingdom, ou_persistent22              
4Translational Neuromodeling Unit (TNU), Institute for Biomedical Engineering, University of Zurich, Switzerland, ou_persistent22              
5Department of Psychiatry, Psychotherapy and Psychosomatics, University Hospital Zurich, Switzerland, ou_persistent22              
6Department of Social and Preventive Medicine, University of Potsdam, Germany, ou_persistent22              
7NeuroCure Cluster of Excellence, Charité University Medicine Berlin, Germany, ou_persistent22              

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Free keywords: Reinforcement learning; Prediction error signal; Ventral striatum; Stress; Intelligence
 Abstract: Fluid intelligence (fluid IQ), defined as the capacity for rapid problem solving and behavioral adaptation, is known to be modulated by learning and experience. Both stressful life events (SLES) and neural correlates of learning [specifically, a key mediator of adaptive learning in the brain, namely the ventral striatal representation of prediction errors (PE)] have been shown to be associated with individual differences in fluid IQ. Here, we examine the interaction between adaptive learning signals (using a well-characterized probabilistic reversal learning task in combination with fMRI) and SLES on fluid IQ measures. We find that the correlation between ventral striatal BOLD PE and fluid IQ, which we have previously reported, is quantitatively modulated by the amount of reported SLES. Thus, after experiencing adversity, basic neuronal learning signatures appear to align more closely with a general measure of flexible learning (fluid IQ), a finding complementing studies on the effects of acute stress on learning. The results suggest that an understanding of the neurobiological correlates of trait variables like fluid IQ needs to take socioemotional influences such as chronic stress into account.

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Language(s): eng - English
 Dates: 2014-04-092014-07-232014-08-212015-02
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1007/s00406-014-0519-3
PMID: 25142177
PMC: PMC4311068
Other: Epub 2014
 Degree: -

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Title: European Archives of Psychiatry and Clinical Neuroscience
Source Genre: Journal
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Publ. Info: Berlin : Springer International
Pages: - Volume / Issue: 265 (1) Sequence Number: - Start / End Page: 35 - 43 Identifier: ISSN: 0940-1334
CoNE: https://pure.mpg.de/cone/journals/resource/954927622119