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- W2414220107 abstract "Facilitated processing of interoceptive and exteroceptive information in the salience network is suggested to promote the development of anxiety and anxiety disorders. Here, it was investigated whether the adenosine 2 A receptor gene (ADORA2A) 1976T/C (rs5751876) variant - previously associated with anxiety disorders and anxiety-related phenotypes as well as general attentional efficiency -was involved in the regulation of this network. In detail, fMRI recordings of 65 healthy participants (female=35) were analyzed regarding ADORA2A genotype effects on brain connectivity related to (1) interoceptive processing in terms of functional connectivity resting-state fMRI, and (2) exteroceptive processing using dynamic causal modeling in task-based fMRI. In a subsample, cardiac interoceptive accuracy was furthermore measured via the Mental Tracking Task. ADORA2A genotype was found to modulate a fronto-insular network at rest (interoceptive processing) and while performing an executive control task (exteroceptive processing). Across both modalities, the ADORA2A TT risk genotype was associated with increased connectivity between the insula and the prefrontal cortex. The strength in connectivity correlated with interoceptive accuracy. It is concluded that alterations in fronto-insular connectivity are modulated by both the adenosinergic system and interoceptive accuracy. Thus, fronto-insular connectivity in synopsis with ADORA2A genotypic information could serve as combined biomarkers for personalized treatment approaches in anxiety disorders targeting exteroceptive and interoceptive dysfunction." @default.
- W2414220107 created "2016-06-24" @default.
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- W2414220107 date "2016-08-01" @default.
- W2414220107 modified "2023-10-18" @default.
- W2414220107 title "ADORA2A genotype modulates interoceptive and exteroceptive processing in a fronto-insular network" @default.
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- W2414220107 doi "https://doi.org/10.1016/j.euroneuro.2016.05.007" @default.
- W2414220107 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/27262510" @default.
- W2414220107 hasPublicationYear "2016" @default.
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