Institute for Behavioral Genetics
University of Colorado Boulder
447 UCB
Boulder, CO 80309-0447
Research Interests:
The use of cross-sectional and longitudinal studies of twins and families to study behavioral development, and genetic and environmental influences on behavior, personality, and health. Recent research focus on the development of behavior problems in childhood and adolescence, vulnerability to drug use, abuse, and dependence, genetics and health, and linkage and association studies of behavioral traits. Dr. Hewitt is the Editor-in-Chief of the journal, Behavior Genetics. He was Director of the Institute for Behavioral Genetics from 2001-2022.
Active Grants:
- R01 DA054087 (mPIs Rhee, Hewitt, Vrieze, Wilson) 05/01/22-02/28/27 Understanding the links between parental and adolescent substance use: complementary natural experiments using the children of twins design. Role: mPI
- U01 DA051018 (mPIs Banich, Friedman, Hewitt (until 07/0522)) 04/15/20-03/31/27 14/21 ABCD-USA consortium: research project site at CU Boulder. Role: mPI until 07/05/22, currently co-Investigator
- R01 DA042755-03 (mPIs Hopfer, Hewitt, Vrieze, McGue) 09/01/17-05/31/23 Impact of marijuana legalization: comparison of two longitudinal twin cohorts. Subcontract to Institute for Behavioral Genetics (Hewitt). Role:mPI
- R01 AG046938-05 (Reynolds) 06/01/15-05/31/26 Colorado Adoption/Twin Study of Lifespan Behavioral Development & Cognitive Aging Subcontract to Institute for Behavioral Genetics (Wadsworth). Role: co-I
- T32 MH016880-38 (Hewitt) 07/01/20-06/30/25 Research Training in Mental Health Behavior Genetics. Role: PI
- R25 MH019918-27 (Keller, previously Hewitt through 05-2021) 07/01/18-06/30/23 Workshop on Statistical Genetic Methods for Human Complex Traits. Role: co-I
- NIDA R01 DA054087 (Rhee (contact PI), Hewitt, Vrieze, Wilson) 5/1/2022 – 4/30/2027. Understanding the links between parental and adolescent substance use: complementary natural experiments using the children of twins design. Role: mPI (till 02-28-23) then co-I
Additional Information:
Former Trainees
Chelsie Benca
Doctoral student
2011-2013
Bo Bishop
Postdoctoral trainee
1998-2001
Angela Brant
Doctoral student
2007-2012
Michael F. Collins
Doctoral trainee
1980-1983
Teresa deCandia
Doctoral student
2009-2012
Sam Dozani
Doctoral student
2014-2017
Lynn Gynther
Doctoral student
1992-1994
Brett Haberstick
Doctoral student 2002-2005
Steve Hallett
Doctoral Trainee
1983-1987
Jeff Lessem
Doctoral student
1993-1999
Rohan Palmer
Doctoral student
2005-2010
Katie Paulich
Doctoral student
2019-2022
Christian Hopfer
K award trainee
1999-2004
Kristin Rasmus
Doctoral student
2014-2016
Chandra Reynolds
Postdoctoral trainee
1994
Soo Rhee
Postdoctoral trainee
1999-2001
K award trainee
2001-2006
Jane Sims
Doctoral Trainee
1984-1988
Elise Eller
Postdoctoral trainee
2001-2002
Naomi Friedman
Postdoctoral trainee
2002-2005
Michael Stallings
Postdoctoral trainee
1993-1994
David Timberlake
Postdoctoral trainee
2003-2006
Tari Topolski
Doctoral student
1993-1997
Tanya Button
Postdoctoral trainee
2005-2006
Carol van Hulle
Doctoral student
1996-2001
Marianne Wamboldt
K award trainee
1997-2002
Steve Wilson
Doctoral student
1993-2002
J Megan Ross
Postdoctoral trainee
2017-2020
Susan Young
K award trainee
2001-2006
Marissa Ehringer
K award trainee
2005-2010
Joe Sakai
K award trainee
2005-2010
Jason Boardman
K award trainee
2005-2010
Matthew Keller
K award trainee
2010-2014
Genetic and shared environmental influences on children's 24-h food and beverage intake: sex differences at age 7 y
Publication Date: 2008-04-01
Type: Journal Article
Common genetic and environmental influences on major depressive disorder and conduct disorder
Publication Date: 2008-04-01
Type: Journal Article
The neuronal nicotinic receptor subunit genes (CHRNA6 and CHRNB3) are associated with subjective responses to tobacco
Zeiger JS; Haberstick BC; Schlaepfer I; Collins AC; Corley RP; Crowley TJ; Hewitt JK; Hopfer CJ; Lessem J; McQueen MB...
- Zeiger JS
- Haberstick BC
- Schlaepfer I
- Collins AC
- Corley RP
- Crowley TJ
- Hewitt JK
- Hopfer CJ
- Lessem J
- McQueen MB
Publication Date: 2008-03-01
Type: Journal Article
Case-control and within-family tests for an association between conduct disorder and DAT1
Schulz-Heik RJ; Maentz SK; Rhee SH; Gelhorn HL; Young SE; Timberlake DS; Smolen A; Stetler GL; Sakai JT; Crowley TJ...
- Schulz-Heik RJ
- Maentz SK
- Rhee SH
- Gelhorn HL
- Young SE
- Timberlake DS
- Smolen A
- Stetler GL
- Sakai JT
- Crowley TJ
Publication Date: 2008-02-01
Type: Journal Article
Item response theory analysis of DSM-IV cannabis abuse and dependence criteria in adolescents
Hartman CA; Gelhorn H; Crowley TJ; Sakai JT; Stallings M; Young SE; Rhee SH; Corley R; Hewitt JK; Hopfer CJ...
- Hartman CA
- Gelhorn H
- Crowley TJ
- Sakai JT
- Stallings M
- Young SE
- Rhee SH
- Corley R
- Hewitt JK
- Hopfer CJ
Publication Date: 2008-02-01
Type: Journal Article
Association between body mass index and MAOA genotype
Publication Date: 2007-11-01
Type: Journal Article
The association between cannabinoid receptor 1 gene (CNR1) and marijuana dependence symptoms: A replication
Hartman CA; Hopfer CJ; Stallings MC; Rhee SH; Young SE; Crowley TJ; Corley RP; Hewitt JK; Krauter K; Ehringer MA...
- Hartman CA
- Hopfer CJ
- Stallings MC
- Rhee SH
- Young SE
- Crowley TJ
- Corley RP
- Hewitt JK
- Krauter K
- Ehringer MA
Publication Date: 2007-11-01
Type: Journal Article
Findings from the Colorado Adoption Project
Publication Date: 2007-11-01
Type: Journal Article
Gene-environment correlations in childhood maltreatment and genetic mediation of the maltreatment - Conduct problem relationship
Publication Date: 2007-11-01
Type: Journal Article
Externalizing behavior: Perceptions and persistence
Publication Date: 2007-11-01
Type: Journal Article
Heritability of disordered eating characteristics in adolescence: An extended twin design
Publication Date: 2007-11-01
Type: Journal Article
Genetic and environmental influences on the child behavior checklist-Juvenile bipolar disorder phenotype
Publication Date: 2007-11-01
Type: Journal Article
Association of candidate genes with antisocial drug dependence in adolescents
Corley RP; Zeiger JS; Stallings MC; Crowley T; Ehringer MA; Hewitt JK; Hopfer CJ; Lessem J; McQueen M; Rhee SH...
- Corley RP
- Zeiger JS
- Stallings MC
- Crowley T
- Ehringer MA
- Hewitt JK
- Hopfer CJ
- Lessem J
- McQueen M
- Rhee SH
Publication Date: 2007-11-01
Type: Journal Article
Greater attention problems during childhood predict poorer executive functioning in late adolescence
Publication Date: 2007-10-01
Type: Journal Article
Genetic association of the cholinergic nicotinic receptor a5a3b4 gene cluster with tobacoco and alcohol use in young adults (vol 31, pg 9, 2007)
Schlaepfer IR; Collins AC; Corley RP; Crowley TJ; Hewitt JK; Hoft N; Hopfer CJ; Krauter K; Lessem J; Rhee SH...
- Schlaepfer IR
- Collins AC
- Corley RP
- Crowley TJ
- Hewitt JK
- Hoft N
- Hopfer CJ
- Krauter K
- Lessem J
- Rhee SH
Publication Date: 2007-09-01
Type: Journal Article
Delinquent peer affiliation and conduct problems: A twin study
Publication Date: 2007-08-01
Type: Journal Article
Case-control and within-family tests for association between 5HTTLPR and conduct problems in a longitudinal adolescent sample
Publication Date: 2007-08-01
Type: Journal Article
Association of the neuronal nicotinic receptor beta 2 subunit gene (CHRNB2) with subjective responses to alcohol and nicotine
Ehringer MA; Clegg HV; Collins AC; Corley RP; Crowley T; Hewitt JK; Hopfer CJ; Krauter K; Lessem J; Rhee SH...
- Ehringer MA
- Clegg HV
- Collins AC
- Corley RP
- Crowley T
- Hewitt JK
- Hopfer CJ
- Krauter K
- Lessem J
- Rhee SH
Publication Date: 2007-07-05
Type: Journal Article
A genome-wide scan for loci influencing adolescent cannabis dependence symptoms: Evidence for linkage on chromosomes 3 and 9
Hopfer CJ; Lessem JM; Hartman CA; Stallings MC; Cherny SS; Corley RP; Hewitt JK; Krauter KS; Mikulich-Gilbertson SK; Rhe...
- Hopfer CJ
- Lessem JM
- Hartman CA
- Stallings MC
- Cherny SS
- Corley RP
- Hewitt JK
- Krauter KS
- Mikulich-Gilbertson SK
- Rhee SH
Publication Date: 2007-06-15
Type: Journal Article
The human protein kinase C gamma gene (PRKCG) as a susceptibility locus for behavioral disinhibition
Schlaepfer IR; Clegg HV; Corley RP; Crowley TJ; Hewitt JK; Hopfer CJ; Krauter K; Lessem J; Rhee SH; Stallings MC...
- Schlaepfer IR
- Clegg HV
- Corley RP
- Crowley TJ
- Hewitt JK
- Hopfer CJ
- Krauter K
- Lessem J
- Rhee SH
- Stallings MC
Publication Date: 2007-06-01
Type: Journal Article
College attendance and its effect on drinking behaviors in a longitudinal study of adolescents
Publication Date: 2007-06-01
Type: Journal Article
Progression from marijuana use to daily smoking and nicotine dependence in a national sample of US adolescents
Publication Date: 2007-05-11
Type: Journal Article
Test of association between TaqIA A1 allele and alcohol use disorder phenotypes in a sample of adolescent patients with serious substance and behavioral problems
Sakai JT; Hopfer CJ; Hartman C; Haberstick BC; Smolen A; Corley RP; Stallings MC; Young SE; Timberlake D; Hewitt JK...
- Sakai JT
- Hopfer CJ
- Hartman C
- Haberstick BC
- Smolen A
- Corley RP
- Stallings MC
- Young SE
- Timberlake D
- Hewitt JK
Publication Date: 2007-05-11
Type: Journal Article
Between- and within-family association test of the dopamine receptor D2 Taq1A polymorphism and alcohol abuse and dependence in a general population sample of adults
Haberstick BC; Timberlake D; Smolen A; Sakai JI; Hopfer CJ; Corley RR; Young SE; Stallings MC; Huizinga D; Menard S...
- Haberstick BC
- Timberlake D
- Smolen A
- Sakai JI
- Hopfer CJ
- Corley RR
- Young SE
- Stallings MC
- Huizinga D
- Menard S
Publication Date: 2007-05-01
Type: Journal Article
Genes, time to first cigarette and nicotine dependence in a general population sample of young adults
Publication Date: 2007-04-01
Type: Journal Article
Pages
Recruiting
Dr. Hewitt is not currently recruiting graduate students or postdocs.