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Regular cannabis and alcohol use is associated with resting-state time course power spectra in incarcerated adolescents

Sandra Thijssen, B. Rashid, Shruti Gopal, Prashanth K. Nyalakanti, V. Calhoun, K. Kiehl

Drug and Alcohol Dependence July 8, 2017 DOI: 10.1016/j.drugalcdep.2017.05.045 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Observational cross-sectional study Peer reviewed
Sample size 180
Population Male juvenile delinquents from the Southwest Advanced Neuroimaging Cohort, Youth sample and a Wisconsin youth detention facility
Topics Cannabis
Key findings No associations were found between cannabis or alcohol use duration and network spatial maps. Longer cannabis use was associated with decreased low-frequency power in the default mode network, executive control networks, and sensory networks, and with decreased functional network connectivity. Longer alcohol use was associated with decreased low-frequency power in the right frontoparietal, salience, dorsal attention, and sensory networks.

Abstract

Cannabis and alcohol are believed to have widespread effects on the brain. Although adolescents are at increased risk for substance use, the adolescent brain may also be particularly vulnerable to the effects of drug exposure due to its rapid maturation. Here, we examined the association between cannabis and alcohol use duration and resting-state functional connectivity in a large sample of male juvenile delinquents. The present sample was drawn from the Southwest Advanced Neuroimaging Cohort, Youth sample, and from a youth detention facility in Wisconsin. All participants were scanned at the maximum-security facilities using The Mind Research Network’s 1.5T Avanto SQ Mobile MRI scanner. Information on cannabis and alcohol regular use duration was collected using self-report. Resting-state networks were computed using group independent component analysis in 201 participants. Associations with cannabis and alcohol use were assessed using Mancova analyses controlling for age, IQ, smoking and psychopathy scores in the complete case sample of 180 male juvenile delinquents. No associations between alcohol or cannabis use and network spatial maps were found. Longer cannabis use was associated with decreased low frequency power of the default mode network, the executive control networks (ECNs), and several sensory networks, and with decreased functional network connectivity. Duration of alcohol use was associated with decreased low frequency power of the right frontoparietal network, salience network, dorsal attention network, and several sensory networks. Our findings suggest that adolescent cannabis and alcohol use are associated with widespread differences in resting-state time course power spectra, which may persist even after abstinence.

Comparable studies

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Study Year Design Participants
Cannabis use before age 15 and subsequent executive functioning 104 chronic cannabis users (49 early-onset before age 15, 55 late-onset after age 15)... 2011 Observational cross-sectional study n = 148
Patterns of simultaneous polysubstance use in drug using university students Drug-using university students 2006 Cross-sectional survey n = 149
Persisting Reductions in Cannabis, Opioid, and Stimulant Misuse After Naturalistic Psychedelic Use: An Online Survey Online survey respondents 2020 Cross-sectional survey
User perceptions of the benefits and harms of hallucinogenic drug use: A web-based questionnaire study Users of hallucinogenic drugs who completed a web-based questionnaire 2010 Cross-sectional survey n = 600
Illicit Use of LSD or Psilocybin, but not MDMA or Nonpsychedelic Drugs, is Associated with Mystical Experiences in a Dose-Dependent Manner Adults recruited from the MAPS website and newsletter, most reporting use of various... 2012 Cross-sectional survey n = 337

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