![John Hewitt portrait](https://www.colorado.edu/ibg/sites/default/files/styles/small/public/people/hewitt_john-2-small.jpg?itok=dG6ejnnS)
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
Sex Differences in the Biometrical Model for Substance Use Vulnerability
Publication Date: 2021-11-01
Type: Conference Proceeding
Musical Instrument Engagement in Adolescence Predicts Verbal Ability 4 Years Later: A Twin and Adoption Study
Publication Date: 2021-11-01
Type: Journal Article
Substance use patterns in 9-10 year olds: Baseline findings from the adolescent brain cognitive development (ABCD) study
Lisdahl KM; Tapert S; Sher KJ; Gonzalez R; Nixon SJ; Ewing SWF; Conway KP; Wallace A; Sullivan R; Hatcher K...
- Lisdahl KM
- Tapert S
- Sher KJ
- Gonzalez R
- Nixon SJ
- Ewing SWF
- Conway KP
- Wallace A
- Sullivan R
- Hatcher K
Publication Date: 2021-10-01
Type: Journal Article
Children's Knowledge of Cannabis and Other Substances in States with Different Cannabis Use Regulations
Publication Date: 2021-08-24
Type: Journal Article
Baseline brain function in the preadolescents of the ABCD Study
Chaarani B; Hahn S; Allgaier N; Adise S; Owens MM; Juliano AC; Yuan DK; Loso H; Ivanciu A; Albaugh MD...
- Chaarani B
- Hahn S
- Allgaier N
- Adise S
- Owens MM
- Juliano AC
- Yuan DK
- Loso H
- Ivanciu A
- Albaugh MD
Publication Date: 2021-08-01
Type: Journal Article
Sleep deficits and cannabis use behaviors: an analysis of shared genetics using linkage disequilibrium score regression and polygenic risk prediction
Publication Date: 2021-03-01
Type: Journal Article
Correspondence Between Perceived Pubertal Development and Hormone Levels in 9-10 Year-Olds From the Adolescent Brain Cognitive Development Study
Herting MM; Uban KA; Gonzalez MR; Baker FC; Kan EC; Thompson WK; Granger DA; Albaugh MD; Anokhin AP; Bagot KS...
- Herting MM
- Uban KA
- Gonzalez MR
- Baker FC
- Kan EC
- Thompson WK
- Granger DA
- Albaugh MD
- Anokhin AP
- Bagot KS
Publication Date: 2021-02-18
Type: Journal Article
The structure and subtypes of gambling activities: Genetic, psychiatric and behavioral etiologies of gambling frequency
Publication Date: 2021-02-01
Type: Journal Article
The association between toddlerhood empathy deficits and antisocial personality disorder symptoms and psychopathy in adulthood
Rhee SH; Woodward K; Corley RP; du Pont A; Friedman NP; Hewitt JK; Hink LK; Robinson J; Zahn-Waxler C...
- Rhee SH
- Woodward K
- Corley RP
- du Pont A
- Friedman NP
- Hewitt JK
- Hink LK
- Robinson J
- Zahn-Waxler C
Publication Date: 2021-02-01
Type: Journal Article
Shared genetic risk between eating disorder- and substance-use-related phenotypes: Evidence from genome-wide association studies
Munn-Chernoff MA; Johnson EC; Chou Y-L; Coleman JRI; Thornton LM; Walters RK; Yilmaz Z; Baker JH; Hubel C; Gordon S...
- Munn-Chernoff MA
- Johnson EC
- Chou Y-L
- Coleman JRI
- Thornton LM
- Walters RK
- Yilmaz Z
- Baker JH
- Hubel C
- Gordon S
Publication Date: 2021-01-01
Type: Journal Article
Genetic and Environmental Influences on Stressful Life Events and their Associations with Executive Functions in Young Adulthood: A Longitudinal Twin Analysis
Publication Date: 2021-01-01
Type: Journal Article
Etiological Overlap Between Sex Under the Influence and Number of Lifetime Sexual Partners
Publication Date: 2021-01-01
Type: Journal Article
A large-scale genome-wide association study meta-analysis of cannabis use disorder
Johnson EC; Demontis D; Thorgeirsson TE; Walters RK; Polimanti R; Hatoum AS; Sanchez-Roige S; Paul SE; Wendt FR; Clarke ...
- Johnson EC
- Demontis D
- Thorgeirsson TE
- Walters RK
- Polimanti R
- Hatoum AS
- Sanchez-Roige S
- Paul SE
- Wendt FR
- Clarke T-K
Publication Date: 2020-12-01
Type: Journal Article
Prenatal cannabis exposure and sleep outcomes in children 9-10 years of age in the adolescent brain cognitive developmentSM study
Publication Date: 2020-12-01
Type: Journal Article
Announcement of the Fulker Award for a Paper Published in Behavior Genetics, Volume 49, 2019
Publication Date: 2020-11-01
Type: Journal Article
Leveraging genome-wide data to investigate differences between opioid use vs. opioid dependence in 41,176 individuals from the Psychiatric Genomics Consortium
Polimanti R; Walters RK; Johnson EC; McClintick JN; Adkins AE; Adkins DE; Bacanu S-A; Bierut LJ; Bigdeli TB; Brown S...
- Polimanti R
- Walters RK
- Johnson EC
- McClintick JN
- Adkins AE
- Adkins DE
- Bacanu S-A
- Bierut LJ
- Bigdeli TB
- Brown S
Publication Date: 2020-08-01
Type: Journal Article
The Role of A Priori-Identified Addiction and Smoking Gene Sets in Smoking Behaviors
Evans LM; Johnson EC; Melroy-Greif WE; Hewitt JK; Hoeffer CA; Keller MC; Saba LM; Stitzel JA; Ehringer MA...
- Evans LM
- Johnson EC
- Melroy-Greif WE
- Hewitt JK
- Hoeffer CA
- Keller MC
- Saba LM
- Stitzel JA
- Ehringer MA
Publication Date: 2020-08-01
Type: Journal Article
Twin studies of brain, cognition, and behavior
Publication Date: 2020-08-01
Type: Journal Article
Twin studies of brain, cognition, and behavior
Publication Date: 2020-08-01
Type: Journal Article
Genetic correlations between executive functions and intelligence in the adolescent brain cognitive development (ABCD) study
Publication Date: 2020-06-26
Type: Conference Proceeding
General factor model of substance use co-morbidity
Publication Date: 2020-06-26
Type: Conference Proceeding
Anxiety-specific influences on substance use: evidence of a protective effect in adolescence and a risk factor in adulthood
Publication Date: 2020-06-26
Type: Conference Proceeding
Investigating heterogenous genetic effects contributing to smoking behavior using the UK Biobank
Publication Date: 2020-06-26
Type: Conference Proceeding
Exploring ABCD phenotypes for future behavioral genetic analysis: screen time is associated with mental health, academic outcomes, and peer relationships
Publication Date: 2020-06-26
Type: Conference Proceeding
Using genetic correlations and polygenic risk prediction to analyze shared genetics between sleep deficits and cannabis use behaviors
Publication Date: 2020-06-26
Type: Conference Proceeding
Pages
Recruiting
Dr. Hewitt is not currently recruiting graduate students or postdocs.