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Neuroimage. 2015 Oct 1;119:235-51. doi: 10.1016/j.neuroimage.2015.06.059. Epub 2015 Jun 26.

Psychosocial versus physiological stress - Meta-analyses on deactivations and activations of the neural correlates of stress reactions.

Author information

  • 1Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty, RWTH Aachen University, Pauwelsstr. 30, 52074 Aachen, Germany; Jülich-Aachen-Research Alliance, Translational Brain Medicine, Germany. Electronic address: lkogler@ukaachen.de.
  • 2Institute of Neuroscience und Medicine, INM-1, Research Centre Jülich, 52425 Jülich, Germany; Institute of Clinical Neuroscience and Medical Psychology, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany.
  • 3Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty, RWTH Aachen University, Pauwelsstr. 30, 52074 Aachen, Germany; Scripps College, Claremont, CA, USA.
  • 4Research Imaging Institute, University of Texas Health Science Center at San Antonio, 8403 Floyd Curl Dr, San Antonio, TX 78229, USA; South Texas Veterans Administration Medical Center, San Antonio, TX, USA.
  • 5Neuropsychiatry Division, Department of Psychiatry, Medical School, University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA 19104, USA.
  • 6Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty, RWTH Aachen University, Pauwelsstr. 30, 52074 Aachen, Germany; Jülich-Aachen-Research Alliance, Translational Brain Medicine, Germany; Institute of Neuroscience und Medicine, INM-1, Research Centre Jülich, 52425 Jülich, Germany.

Abstract

Stress is present in everyday life in various forms and situations. Two stressors frequently investigated are physiological and psychosocial stress. Besides similar subjective and hormonal responses, it has been suggested that they also share common neural substrates. The current study used activation-likelihood-estimation meta-analysis to test this assumption by integrating results of previous neuroimaging studies on stress processing. Reported results are cluster-level FWE corrected. The inferior frontal gyrus (IFG) and the anterior insula (AI) were the only regions that demonstrated overlapping activation for both stressors. Analysis of physiological stress showed consistent activation of cognitive and affective components of pain processing such as the insula, striatum, or the middle cingulate cortex. Contrarily, analysis across psychosocial stress revealed consistent activation of the right superior temporal gyrus and deactivation of the striatum. Notably, parts of the striatum appeared to be functionally specified: the dorsal striatum was activated in physiological stress, whereas the ventral striatum was deactivated in psychosocial stress. Additional functional connectivity and decoding analyses further characterized this functional heterogeneity and revealed higher associations of the dorsal striatum with motor regions and of the ventral striatum with reward processing. Based on our meta-analytic approach, activation of the IFG and the AI seems to indicate a global neural stress reaction. While physiological stress activates a motoric fight-or-flight reaction, during psychosocial stress attention is shifted towards emotion regulation and goal-directed behavior, and reward processing is reduced. Our results show the significance of differentiating physiological and psychosocial stress in neural engagement. Furthermore, the assessment of deactivations in addition to activations in stress research is highly recommended.

KEYWORDS:

Achievement stress; IFG; Insula; Pain; Social exclusion; Striatum

PMID:
26123376
PMCID:
PMC4564342
DOI:
10.1016/j.neuroimage.2015.06.059
[PubMed - indexed for MEDLINE]
Free PMC Article
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