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The role of emotional inhibitory control in specific internet addiction : an fMRI study

The role of emotional inhibitory control in specific internet addiction : an fMRI study

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DIETER, Julia, Sabine HOFFMANN, Daniela MIER, Iris REINHARD, Martin BEUTEL, Sabine VOLLSTÄDT-KLEIN, Falk KIEFER, Karl MANN, Tagrid LEMÉNAGER, 2017. The role of emotional inhibitory control in specific internet addiction : an fMRI study. In: Behavioural Brain Research. 324, pp. 1-14. ISSN 0166-4328. eISSN 1872-7549. Available under: doi: 10.1016/j.bbr.2017.01.046

@article{Dieter2017emoti-45250, title={The role of emotional inhibitory control in specific internet addiction : an fMRI study}, year={2017}, doi={10.1016/j.bbr.2017.01.046}, volume={324}, issn={0166-4328}, journal={Behavioural Brain Research}, pages={1--14}, author={Dieter, Julia and Hoffmann, Sabine and Mier, Daniela and Reinhard, Iris and Beutel, Martin and Vollstädt-Klein, Sabine and Kiefer, Falk and Mann, Karl and Leménager, Tagrid} }

The role of emotional inhibitory control in specific internet addiction : an fMRI study Kiefer, Falk Leménager, Tagrid Vollstädt-Klein, Sabine Hoffmann, Sabine 2019-02-28T08:47:56Z Vollstädt-Klein, Sabine Mann, Karl Reinhard, Iris Mann, Karl 2017 Dieter, Julia Beutel, Martin Mier, Daniela terms-of-use Kiefer, Falk Dieter, Julia eng Mier, Daniela Hoffmann, Sabine 2019-02-28T08:47:56Z Beutel, Martin Leménager, Tagrid Background: Addicts to specific internet applications involving communication features showed increased social anxiety, emotional competence deficits and impaired prefrontal-related inhibitory control. The dorsal Anterior Cingulate Cortex (dACC) likely plays an important role in cognitive control and negative affect (such as social exclusion, pain or anxiety).<br /><br />Aim: To assess (social) anxiety-related inhibitory control in specific internet addiction (addicted use of games and social networks) and its relation to altered dACC activation.<br /><br />Methods: N = 44 controls and n = 51 specific internet addicts completed an anxious words-based Affective Go/No-Go task (AGN). A subsample of n = 23 healthy controls and n = 25 specific internet addicts underwent functional Magnetic Resonance Imaging (fMRI) while completing an Emotional Stroop Task (EST) with socially anxious, positive, negative and neutral words. Subgroups of internet gaming and social network addicts were exploratively assessed. Psychometric measures of social anxiety, emotional competence and impulsivity were additionally explored.<br /><br />Results: Specific internet addicts showed higher impulsivity, social anxiety and reduced emotional competence. Between-group differences in AGN and EST behavioral measures were not detected. No group differences were found in the dACC, but explorative analyses revealed decreased left middle and superior temporal gyrus activation during interference of socially anxious words in internet gaming and relative to social network addicts.<br /><br />Conclusion: Given the function of the left middle temporal gyrus in the retrieval of words or expressions during communication, our findings give a first hint that social words might be less retrievable in the semantic storage of internet gaming addicts, possibly indicating deficiencies in handling speech in social situations. Reinhard, Iris

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