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Κυριακή 29 Νοεμβρίου 2015

When the brain does not adequately feel the body: Links between low resilience and interoception

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Publication date: January 2016
Source:Biological Psychology, Volume 113
Author(s): Lori Haase, Jennifer L. Stewart, Brittany Youssef, April C. May, Sara Isakovic, Alan N. Simmons, Douglas C. Johnson, Eric G. Potterat, Martin P. Paulus
This study examined neural processes of resilience during aversive interoceptive processing. Forty-six individuals were divided into three groups of resilience Low (LowRes), high (HighRes), and normal (NormRes), based on the Connor-Davidson Resilience Scale (2003). Participants then completed a task involving anticipation and experience of loaded breathing during functional magnetic resonance imaging (fMRI) recording. Compared to HighRes and NormRes groups, LowRes self-reported lower levels of interoceptive awareness and demonstrated higher insular and thalamic activation across anticipation and breathing load conditions. Thus, individuals with lower resilience show reduced attention to bodily signals but greater neural processing to aversive bodily perturbations. In low resilient individuals, this mismatch between attention to and processing of interoceptive afferents may result in poor adaptation in stressful situations.



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