This proposal, submitted by an early stage investigator, seeks four years of R01 support to conduct an MRI study of adolescent patients with serious substance and conduct problems and adolescent controls. This proposal seeks to identify the neural correlates (both functional and structural) of callous-unemotionality (CU). CU is identifiable in childhood and adolescence, is a relatively stable trait into adulthood, and is linked with persistent antisocial behavior problems and substance dependence;individuals with CU, antisocial behavior problems and substance use disorders appear more resistant to treatment. This proposal will also allow searching for neural correlates of subtypes of adolescent-onset substance dependence. We will recruit, complete extensive diagnostic interviews and image subjects while they play the AlAn's game. That game, which was designed for use in the MRI environment, has demonstrated a strong relationship with CU trait scores in our out-of-magnet pilot testing.
Substance use disorders and antisocial behavior are major public health problems, are linked to serious morbidity and high mortality and have a partial genetic etiology. Callous-unemotional traits are identifiable in childhood and adolescents, are relatively stable into young adulthood and predict future and persistent antisocial behavior and substance problems. The current study proposes a search for neurobiological correlates callous-unemotionality and subtypes of adolescent-onset substance dependence. Better understanding the biological etiology of these disorders may lead to better prevention or treatment approaches.
|Sakai, Joseph T; Dalwani, Manish S; Mikulich-Gilbertson, Susan K et al. (2016) A Behavioral Measure of Costly Helping: Replicating and Extending the Association with Callous Unemotional Traits in Male Adolescents. PLoS One 11:e0151678|
|Boulos, Peter K; Dalwani, Manish S; Tanabe, Jody et al. (2016) Brain Cortical Thickness Differences in Adolescent Females with Substance Use Disorders. PLoS One 11:e0152983|
|Coors, Marilyn E; Raymond, Kristen M; Hopfer, Christian J et al. (2016) Adolescents with substance use disorder and assent/consent: Empirical data on understanding biobank risks in genomic research. Drug Alcohol Depend 159:267-71|
|Crowley, Thomas J; Dalwani, Manish S; Mikulich-Gilbertson, Susan K et al. (2015) Adolescents' Neural Processing of Risky Decisions: Effects of Sex and Behavioral Disinhibition. PLoS One 10:e0132322|
|Chumachenko, Serhiy Y; Sakai, Joseph T; Dalwani, Manish S et al. (2015) Brain cortical thickness in male adolescents with serious substance use and conduct problems. Am J Drug Alcohol Abuse :1-11|
|Chumachenko, Serhiy Y; Sakai, Joseph T; Dalwani, Manish S et al. (2015) Brain cortical thickness in male adolescents with serious substance use and conduct problems. Am J Drug Alcohol Abuse 41:414-24|
|Regner, Michael F; Dalwani, Manish; Yamamoto, Dorothy et al. (2015) Sex Differences in Gray Matter Changes and Brain-Behavior Relationships in Patients with Stimulant Dependence. Radiology 277:801-12|
|Dalwani, Manish S; McMahon, Mary Agnes; Mikulich-Gilbertson, Susan K et al. (2015) Female adolescents with severe substance and conduct problems have substantially less brain gray matter volume. PLoS One 10:e0126368|
|Schuermeyer, Joseph; Salomonsen-Sautel, Stacy; Price, Rumi Kato et al. (2014) Temporal trends in marijuana attitudes, availability and use in Colorado compared to non-medical marijuana states: 2003-11. Drug Alcohol Depend 140:145-55|
|Salomonsen-Sautel, Stacy; Min, Sung-Joon; Sakai, Joseph T et al. (2014) Trends in fatal motor vehicle crashes before and after marijuana commercialization in Colorado. Drug Alcohol Depend 140:137-44|
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