Altered fronto-cerebellar connectivity in alcohol-naïve youth with a family history of alcoholism

Megan M. Herting, Damien Fair, Bonnie Nagel

Research output: Contribution to journalArticle

78 Citations (Scopus)

Abstract

Fronto-cerebellar connections are thought to be involved in higher-order cognitive functioning. It is suspected that damage to this network may contribute to cognitive deficits in chronic alcoholics. However, it remains to be elucidated if fronto-cerebellar circuitry is altered in high-risk individuals even prior to alcohol use onset. The current study used functional connectivity MRI (fcMRI) to examine fronto-cerebellar circuitry in 13 alcohol-naïve, at-risk youth with a family history of alcoholism (FH+) and 14 age-matched controls. In addition, we examined how white matter microstructure, as evidenced by fractional anisotropy (FA), related to fcMRI. FH+. youth showed significantly reduced functional connectivity between bilateral anterior prefrontal cortices and contralateral cerebellar seed regions compared to controls. We found that this reduction in connectivity significantly correlated with reduced FA in the anterior limb of the internal capsule and the superior longitudinal fasciculus. Taken together, our findings reflect associated aberrant functional and structural connectivity in substance-naïve FH+. adolescents, perhaps suggesting an identifiable neurophenotypic precursor to substance use. Given the role of frontal and cerebellar brain regions in subserving executive functioning, the presence of premorbid abnormalities in fronto-cerebellar circuitry may heighten the risk for developing an alcohol use disorder in FH+. youth through atypical control processing.

Original languageEnglish (US)
Pages (from-to)2582-2589
Number of pages8
JournalNeuroImage
Volume54
Issue number4
DOIs
StatePublished - Feb 14 2011

Fingerprint

Alcoholism
Alcohols
Anisotropy
Magnetic Resonance Imaging
Internal Capsule
Alcoholics
Prefrontal Cortex
Seeds
Extremities
Brain

Keywords

  • Adolescence
  • Alcohol
  • At-risk
  • Cerebellum
  • FMRI
  • Functional connectivity

ASJC Scopus subject areas

  • Cognitive Neuroscience
  • Neurology

Cite this

Altered fronto-cerebellar connectivity in alcohol-naïve youth with a family history of alcoholism. / Herting, Megan M.; Fair, Damien; Nagel, Bonnie.

In: NeuroImage, Vol. 54, No. 4, 14.02.2011, p. 2582-2589.

Research output: Contribution to journalArticle

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