Abnormal cerebellar morphometry in abstinent adolescent marijuana users.
Abnormal cerebellar morphometry in abstinent adolescent marijuana users.
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DOI:
10.1016/j.pscychresns.2009.12.004
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发表时间:
2010-05-30
影响因子:
2.3
通讯作者:
Tapert, Susan F.
中科院分区:
文献类型:
--
作者:
Medina, Krista Lisdahl;Nagel, Bonnie J.;Tapert, Susan F.
Functional neuroimaging data from adults have, in general, found frontocerebellar dysfunction associated with acute and chronic marijuana (MJ) use. One structural neuroimaging study found reduced cerebellar vermis volume in young adult MJ users with a history of heavy polysubstance use. The goal of this study was to characterize cerebellar volume in adolescent chronic MJ users following one month of monitored abstinence. Participants were MJ users (n=16) and controls (n=16) aged 16-18 years. Extensive exclusionary criteria included history of psychiatric or neurologic disorders. Drug use history, neuropsychological data, and structural brain scans were collected after 28 days of monitored abstinence. Trained research staff defined cerebellar volumes (including three cerebellar vermis lobes and both cerebellar hemispheres) on high-resolution T1-weighted magnetic resonance images. Adolescent MJ users demonstrated significantly larger inferior posterior (lobules VIII-X) vermis volume (p<.009) than controls, above and beyond effects of lifetime alcohol and other drug use, gender, and intracranial volume. Larger vermis volumes were associated with poorer executive functioning (p’s<.05). Following one month of abstinence, adolescent MJ users had significantly larger posterior cerebellar vermis volumes than non-using controls. These greater volumes are suggested to be pathological based on linkage to poorer executive functioning. Longitudinal studies are needed to examine typical cerebellar development during adolescence and the influence of marijuana use.
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影响因子:
2.9
作者:
Bindukumar, B.;Mahajan, S. D.;Schwartz, S. A.
通讯作者:
Schwartz, S. A.
DOI:
10.3109/10826087709022166
发表时间:
1977-01-01
期刊:
INTERNATIONAL JOURNAL OF THE ADDICTIONS
影响因子:
--
作者:
CARLIN, AS;TRUPIN, EW
通讯作者:
TRUPIN, EW
影响因子:
2.9
作者:
BELUE, RC;HOWLETT, AC;HUTCHINGS, DE
通讯作者:
HUTCHINGS, DE
影响因子:
17.7
作者:
Allen, G;Courchesne, E
通讯作者:
Courchesne, E
DOI:
10.3109/15622970209150624
发表时间:
2002-10-01
期刊:
The world journal of biological psychiatry : the official journal of the World Federation of Societies of Biological Psychiatry
影响因子:
--
作者:
Bussing, Regina;Grudnik, Jennifer;Leonard, Christiana
通讯作者:
Leonard, Christiana