Harvard Catalyst Profiles

Contact, publication, and social network information about Harvard faculty and fellows.

Kelly A. Sagar, Ph.D.


Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Faculty can login to make corrections and additions.
Newest   |   Oldest   |   Most Cited   |   Most Discussed   |   Timeline   |   Field Summary   |   Plain Text
PMC Citations indicate the number of times the publication was cited by articles in PubMed Central, and the Altmetric score represents citations in news articles and social media. (Note that publications are often cited in additional ways that are not shown here.) Fields are based on how the National Library of Medicine (NLM) classifies the publication's journal and might not represent the specific topic of the publication. Translation tags are based on the publication type and the MeSH terms NLM assigns to the publication. Some publications (especially newer ones and publications not in PubMed) might not yet be assigned Field or Translation tags.) Click a Field or Translation tag to filter the publications.
  1. Dahlgren MK, Gonenc A, Sagar KA, Smith RT, Lambros AM, El-Abboud C, Gruber SA. Increased White Matter Coherence Following Three and Six Months of Medical Cannabis Treatment. Cannabis Cannabinoid Res. 2022 12; 7(6):827-839. PMID: 36367574; PMCID: PMC9784607.
    Citations:    Fields:    Translation:HumansAnimals
  2. Dahlgren MK, Lambros AM, Smith RT, Sagar KA, El-Abboud C, Gruber SA. Clinical and cognitive improvement following full-spectrum, high-cannabidiol treatment for anxiety: open-label data from a two-stage, phase 2 clinical trial. Commun Med (Lond). 2022 Nov 02; 2(1):139. PMID: 36352103; PMCID: PMC9628346.
    Citations: 1     
  3. Dahlgren MK, El-Abboud C, Lambros AM, Sagar KA, Smith RT, Gruber SA. A survey of medical cannabis use during perimenopause and postmenopause. Menopause. 2022 09 01; 29(9):1028-1036. PMID: 35917529; PMCID: PMC9422771.
    Citations:    Fields:    Translation:Humans
  4. Sagar KA, Dahlgren MK, Lambros AM, Smith RT, El-Abboud C, Gruber SA. An Observational, Longitudinal Study of Cognition in Medical Cannabis Patients over the Course of 12 Months of Treatment: Preliminary Results. J Int Neuropsychol Soc. 2021 07; 27(6):648-660. PMID: 34261553.
    Citations: 1     Fields:    Translation:HumansAnimals
  5. Gruber SA, Smith RT, Dahlgren MK, Lambros AM, Sagar KA. No pain, all gain? Interim analyses from a longitudinal, observational study examining the impact of medical cannabis treatment on chronic pain and related symptoms. Exp Clin Psychopharmacol. 2021 Apr; 29(2):147-156. PMID: 33764103.
    Citations: 3     Fields:    Translation:Humans
  6. Dahlgren MK, Sagar KA, Lambros AM, Smith RT, Gruber SA. Urinary Tetrahydrocannabinol After 4 Weeks of a Full-Spectrum, High-Cannabidiol Treatment in an Open-label Clinical Trial. JAMA Psychiatry. 2021 03 01; 78(3):335-337. PMID: 33146684; PMCID: PMC9429743.
    Citations: 4     Fields:    Translation:HumansPHPublic HealthCTClinical Trials
  7. Cohen JFW, Sagar K, Dahlgren MK, Kurdziel LBF, Gruber SA. The Impact of Micronutrient Fortified Foods on Cognitive Functioning among Low-Income Children: A Pilot and Feasibility Study. Nutrients. 2020 Oct 30; 12(11). PMID: 33143203; PMCID: PMC7693551.
    Citations:    Fields:    Translation:Humans
  8. Dahlgren MK, Sagar KA, Smith RT, Lambros AM, Kuppe MK, Gruber SA. Recreational cannabis use impairs driving performance in the absence of acute intoxication. Drug Alcohol Depend. 2020 03 01; 208:107771. PMID: 31952821; PMCID: PMC9036916.
    Citations: 15     Fields:    Translation:Humans
  9. Mashhoon Y, Sagar KA, Gruber SA. Cannabis Use and Consequences. Pediatr Clin North Am. 2019 12; 66(6):1075-1086. PMID: 31679598.
    Citations: 2     Fields:    Translation:Humans
  10. Cohen J, Sagar K, Dahlgren MK, Rimm E, Gruber S. The Impact of Micronutrient Fortified Foods on Cognitive Functioning Among Low-Income Children: A Pilot Study (P18-096-19). Curr Dev Nutr. 2019 Jun; 3(Suppl 1). PMID: 31224074.
  11. Sagar KA, Gruber SA. Interactions between recreational cannabis use and cognitive function: lessons from functional magnetic resonance imaging. Ann N Y Acad Sci. 2019 09; 1451(1):42-70. PMID: 30426517; PMCID: PMC6513728.
    Citations: 8     Fields:    Translation:Humans
  12. Sagar KA, Gruber SA. Marijuana matters: reviewing the impact of marijuana on cognition, brain structure and function, & exploring policy implications and barriers to research. Int Rev Psychiatry. 2018 06; 30(3):251-267. PMID: 29966459; PMCID: PMC6455965.
    Citations: 17     Fields:    Translation:Humans
  13. Sagar KA, Lambros AM, Dahlgren MK, Smith RT, Gruber SA. Made from concentrate? A national web survey assessing dab use in the United States. Drug Alcohol Depend. 2018 09 01; 190:133-142. PMID: 30029166; PMCID: PMC9036911.
    Citations: 3     Fields:    Translation:HumansAnimals
  14. Dahlgren MK, Hooley JM, Best SG, Sagar KA, Gonenc A, Gruber SA. Prefrontal cortex activation during cognitive interference in nonsuicidal self-injury. Psychiatry Res Neuroimaging. 2018 07 30; 277:28-38. PMID: 29803001.
    Citations: 6     Fields:    Translation:Humans
  15. Gruber SA, Sagar KA, Dahlgren MK, Gonenc A, Smith RT, Lambros AM, Cabrera KB, Lukas SE. The Grass Might Be Greener: Medical Marijuana Patients Exhibit Altered Brain Activity and Improved Executive Function after 3 Months of Treatment. Front Pharmacol. 2017; 8:983. PMID: 29387010; PMCID: PMC5776082.
    Citations: 21     
  16. Gruber SA, Dahlgren MK, Sagar KA, Gonenc A, Norris L, Cohen BM, Ongur D, Lewandowski KE. Decreased Cingulate Cortex activation during cognitive control processing in bipolar disorder. J Affect Disord. 2017 Apr 15; 213:86-95. PMID: 28199893.
    Citations: 7     Fields:    Translation:Humans
  17. Gruber SA, Sagar KA, Dahlgren MK, Racine MT, Smith RT, Lukas SE. Splendor in the Grass? A Pilot Study Assessing the Impact of Medical Marijuana on Executive Function. Front Pharmacol. 2016; 7:355. PMID: 27790138; PMCID: PMC5062916.
    Citations: 26     
  18. Sagar KA, Dahlgren MK, Racine MT, Dreman MW, Olson DP, Gruber SA. Joint Effects: A Pilot Investigation of the Impact of Bipolar Disorder and Marijuana Use on Cognitive Function and Mood. PLoS One. 2016; 11(6):e0157060. PMID: 27275781.
    Citations: 12     Fields:    Translation:HumansCTClinical Trials
  19. Dahlgren MK, Sagar KA, Racine MT, Dreman MW, Gruber SA. Marijuana Use Predicts Cognitive Performance on Tasks of Executive Function. J Stud Alcohol Drugs. 2016 Mar; 77(2):298-308. PMID: 26997188.
    Citations: 14     Fields:    Translation:Humans
  20. Gruber SA, Sagar KA, Dahlgren MK, Gonenç A, Conn NA, Winer JP, Penetar D, Lukas SE. Citicoline Treatment Improves Measures of Impulsivity and Task Performance in Chronic Marijuana Smokers: A Pilot BOLD fMRI Study. Int J Neurol Neurother. 2015 Sep 30; 2(3):1-8. PMID: 26658924; PMCID: PMC4674830.
    Citations: 4     
  21. Sagar KA, Dahlgren MK, Gönenç A, Racine MT, Dreman MW, Gruber SA. The impact of initiation: Early onset marijuana smokers demonstrate altered Stroop performance and brain activation. Dev Cogn Neurosci. 2015 Dec; 16:84-92. PMID: 25936584; PMCID: PMC4596753.
    Citations: 30     Fields:    Translation:Humans
  22. Gruber SA, Dahlgren MK, Sagar KA, Gönenç A, Lukas SE. Worth the wait: effects of age of onset of marijuana use on white matter and impulsivity. Psychopharmacology (Berl). 2014 Apr; 231(8):1455-65. PMID: 24190588.
    Citations: 68     Fields:    Translation:Humans
  23. Sagar KA, Dahlgren MK, Gönenç A, Gruber SA. Altered affective processing in bipolar disorder: an fMRI study. J Affect Disord. 2013 Sep 25; 150(3):1192-6. PMID: 23726779.
    Citations: 4     Fields:    Translation:Humans
  24. Gruber SA, Sagar KA, Dahlgren MK, Olson DP, Centorrino F, Lukas SE. Marijuana impacts mood in bipolar disorder: a pilot study. Ment Health Subst Use. 2012; 5(3):228-239. PMID: 35444716; PMCID: PMC9016723.
  25. Gruber SA, Dahlgren MK, Sagar KA, Gönenc A, Killgore WD. Age of onset of marijuana use impacts inhibitory processing. Neurosci Lett. 2012 Mar 09; 511(2):89-94. PMID: 22306089.
    Citations: 58     Fields:    Translation:Humans
  26. Gruber SA, Sagar KA, Dahlgren MK, Racine M, Lukas SE. Age of onset of marijuana use and executive function. Psychol Addict Behav. 2012 Sep; 26(3):496-506. PMID: 22103843.
    Citations: 112     Fields:    Translation:Humans
Local representatives can answer questions about the Profiles website or help with editing a profile or issues with profile data. For assistance with this profile: HMS/HSDM faculty should contact contactcatalyst.harvard.edu. For faculty or fellow appointment updates and changes, please ask your appointing department to contact HMS. For fellow personal and demographic information, contact HMS Human Resources at human_resourceshms.harvard.edu. For faculty personal and demographic information, contact HMS Office for Faculty Affairs at facappthms.harvard.edu.
Sagar's Networks
Click the
buttons for more information and interactive visualizations!
Concepts (77)
Co-Authors (12)
Similar People (60)
Same Department 
Funded by the NIH National Center for Advancing Translational Sciences through its Clinical and Translational Science Awards Program, grant number UL1TR002541.