Anger and depression in cocaine addiction: association with the orbitofrontal cortex.
The high prevalence of anger, impulsivity and violence in cocaine addiction implicates chronic cocaine use in the compromise of higher-order inhibitory control neurocognitive processes. We used the Minnesota Multiphasic Personality Inventory-2 (MMPI-2) anger content scale as a personality measure of inhibitory control and examined its association with glucose metabolism in the lateral orbitofrontal gyrus (LOFG) at rest as measured by positron emission tomography with 2-deoxy-2[(18)F]fluoro-D-glucose (PET (18)FDG) in 17 recently abstinent cocaine-dependent subjects and 16 comparison subjects. Three additional variables--the MMPI-2 depression content scale, metabolism in the medial orbitofrontal gyrus (MOFG) and the anterior cingulate (AC) gyrus--were inspected. When level of education was statistically controlled for, the LOFG was significantly associated with anger within the cocaine group. No other region was associated with anger within the cocaine-dependent group, and the LOFG did not correlate with depression within any of the study groups. The present study confirms earlier reports in demonstrating a positive association between relative metabolism at rest in the LOFG and cognitive-behavioral and personality measures of inhibitory control in drug addiction: the higher the metabolism, the better the inhibitory control.
Goldstein
Rita Z
RZ
Medical Research, Brookhaven National Laboratory, Bldg. 490, 30 Bell Ave, Upton, NY, 11973-5000, USA. rgoldstein@bnl.gov
Alia-Klein
Nelly
N
Leskovjan
Andreana C
AC
Fowler
Joanna S
JS
Wang
Gene-Jack
GJ
Gur
Ruben C
RC
Hitzemann
Robert
R
Volkow
Nora D
ND
D000328:Adult; D000786:Anger; D002908:Chronic Disease; D019970:Cocaine-Related Disorders / Q000453:epidemiology* / Q000378:metabolism*; D003072:Cognition Disorders / Q000175:diagnosis / Q000453:epidemiology / Q000378:metabolism; D003863:Depression / Q000453:epidemiology* / Q000378:metabolism*; D007174:Disruptive, Impulse Control, and Conduct Disorders / Q000453:epidemiology / Q000378:metabolism; D019788:Fluorodeoxyglucose F18; D005947:Glucose / Q000378:metabolism; D006179:Gyrus Cinguli / Q000000981:diagnostic imaging / Q000378:metabolism; D006801:Humans; D007266:Inhibition, Psychological; D008950:MMPI; D001523:Mental Disorders / Q000175:diagnosis / Q000453:epidemiology / Q000378:metabolism; D010554:Personality Disorders / Q000175:diagnosis / Q000453:epidemiology / Q000378:metabolism; D049268:Positron-Emission Tomography; D017397:Prefrontal Cortex / Q000000981:diagnostic imaging / Q000378:metabolism*; D019275:Radiopharmaceuticals; D012720:Severity of Illness Index
D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18; D005947:Glucose