Metabolic alterations in the anterior cingulate cortex and related cognitive deficits in late adolescent methamphetamine users

Jieun E. Kim, Geon Ha Kim, Jaeuk Hwang, Jung Yoon Kim, Perry F. Renshaw, Deborah A. Yurgelun-Todd, Binna Kim, Ilhyang Kang, Saerom Jeon, Jiyoung Ma, In Kyoon Lyoo, Sujung Yoon

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

The adolescent brain, with ongoing prefrontal maturation, may be more vulnerable to drug use-related neurotoxic changes as compared to the adult brain. We investigated whether the use of methamphetamine (MA), a highly addictive psychostimulant, during adolescence affect metabolic and cognitive functions of the anterior cingulate cortex (ACC). In adolescent MA users (n = 44) and healthy adolescents (n = 53), the levels of N-acetyl aspartate (NAA), a neuronal marker, were examined in the ACC using proton magnetic resonance spectroscopy. The Stroop color–word task was used to assess Stroop interference, which may reflect cognitive functions of behavior monitoring and response selection that are mediated by the ACC. Adolescent MA users had lower NAA levels in the ACC (t = −2.88, P = 0.005) and relatively higher interference scores (t = 2.03, P = 0.045) than healthy adolescents. Moreover, there were significant relationships between lower NAA levels in the ACC and worse interference scores in adolescent MA users (r = −0.61, P < 0.001). Interestingly, early onset of MA use, as compared to late onset, was related to both lower NAA levels in the ACC (t = −2.24, P = 0.03) as well as lower performance on interference measure of the Stroop color–word task (t = 2.25, P = 0.03). The current findings suggest that metabolic dysfunction in the ACC and its related cognitive impairment may play an important role in adolescent-onset addiction, particularly during early adolescence.

Original languageEnglish
Pages (from-to)327-336
Number of pages10
JournalAddiction Biology
Volume23
Issue number1
DOIs
StatePublished - Jan 2018

Keywords

  • Adolescents
  • N-acetyl aspartate
  • Stroop interference
  • anterior cingulate cortex
  • magnetic resonance spectroscopy
  • methamphetamine

Fingerprint

Dive into the research topics of 'Metabolic alterations in the anterior cingulate cortex and related cognitive deficits in late adolescent methamphetamine users'. Together they form a unique fingerprint.

Cite this