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

  • 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 suggestFluid 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.show moreshow less

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Metadaten
Author:Eva Friedel, Florian Schlagenhauf, Anne Beck, Raymond J. Dolan, Quentin J. M. Huys, Michael Armin RappORCiDGND, Andreas Heinz
DOI:https://doi.org/10.1007/s00406-014-0519-3
ISSN:0940-1334 (print)
ISSN:1433-8491 (online)
Pubmed Id:http://www.ncbi.nlm.nih.gov/pubmed?term=25142177
Parent Title (English):European archives of psychiatry and clinical neuroscience : official organ of the German Society for Biological Psychiatry
Publisher:Springer
Place of publication:Heidelberg
Document Type:Article
Language:English
Year of first Publication:2015
Year of Completion:2015
Release Date:2017/03/27
Tag:Intelligence; Prediction error signal; Reinforcement learning; Stress; Ventral striatum
Volume:265
Issue:1
Pagenumber:9
First Page:35
Last Page:43
Funder:German Research Foundation (Deutsche Forschungsgemeinschaft, DFG) [FOR 1617, HE2597/13-1, RA1047/2-1, SM80/7-1]
Organizational units:Humanwissenschaftliche Fakultät / Institut für Sportwissenschaft
Peer Review:Referiert
Notes extern:Zweitveröffentlichung in der Schriftenreihe Postprints der Universität Potsdam : Humanwissenschaftliche Reihe ; 621