> Details

Ioannidis, Konstantinos; Redden, Sarah A.; Valle, Stephanie; Chamberlain, Samuel R.; Grant, Jon E.

Problematic internet use: an exploration of associations between cognition and COMT rs4818, rs4680 haplotypes

Reference
management

Bookmarks

Remove from
bookmarks

Share this on Whatsapp

Close

Bookmarks



You can manage bookmarks using lists, please log in to your user account for this.
  • Media type: E-Article
  • Title: Problematic internet use: an exploration of associations between cognition and COMT rs4818, rs4680 haplotypes
  • Contributor: Ioannidis, Konstantinos; Redden, Sarah A.; Valle, Stephanie; Chamberlain, Samuel R.; Grant, Jon E.
  • Published: Cambridge University Press (CUP), 2020
  • Published in: CNS Spectrums, 25 (2020) 3, Seite 409-418
  • Language: English
  • DOI: 10.1017/s1092852919001019
  • ISSN: 1092-8529; 2165-6509
  • Origination:
  • Footnote:
  • Description: <jats:sec id="S1092852919001019_as1" sec-type="other"><jats:title>Objective</jats:title><jats:p>Problematic internet users suffer from impairment in a variety of cognitive domains. Research suggests that COMT haplotypes exert differential effects on cognition. We sought to investigate differences in the genetic profiles of problematic internet users and whether those could shed light on potential cognitive differences.</jats:p></jats:sec><jats:sec id="S1092852919001019_as2" sec-type="other"><jats:title>Methods</jats:title><jats:p>We recruited 206 non-treatment seeking participants with heightened impulsive traits and obtained cross-sectional demographic, clinical, and cognitive data as well as the genetic haplotypes of COMT rs4680 and rs4818. We identified 24 participants who presented with problematic internet use (PIU) and compared PIU and non-PIU participants using one-way analysis of variance (ANOVA) and chi square as appropriate.</jats:p></jats:sec><jats:sec id="S1092852919001019_as3" sec-type="other"><jats:title>Results</jats:title><jats:p>PIU was associated with worse performance on decision making, rapid visual processing, and spatial working memory tasks. Genetic variants were associated with altered cognitive performance, but rates of PIU did not statistically differ for particular haplotypes of COMT.</jats:p></jats:sec><jats:sec id="S1092852919001019_as4" sec-type="other"><jats:title>Conclusion</jats:title><jats:p>This study indicates that PIU is characterized by deficits in decision making and working memory domains; it also provides evidence for elevated impulsive responses and impaired target detection on a sustained attention task, which is a novel area worth exploring further in future work. The effects observed in the genetic influences on cognition of PIU subjects imply that the genetic heritable components of PIU may not lie within the genetic loci influencing COMT function and cognitive performance; or that the genetic component in PIU involves many genetic polymorphisms each conferring only a small effect.</jats:p></jats:sec>