Research (updated July 2025)
Research (updated July 2025)
Papers are available upon request.
Laudie, J., Stangl, B.L., Gunawan, T., Schwandt, M.L., Cheng, C., Gilmore, A.K., Goldman, D., Ramchandani, V.A., Diazgranados, N., & Luk,, J.L. (2025). Associations of substance use and positive coping behaviors with sleep quality during the COVID-19 pandemic. Frontiers in Sleep, 3, 1504489. https://doi.org/10.3389/frsle.2024.1504489
Cullins, E.C.*, Gunawan, T.*, Schwandt, M.L., Luk, J.W., George, D.T., Diazgranados, N., Goldman, D., & Ramchandani, V.A. (2025). Markers of negative emotionality in individuals with comorbid alcohol use disorder and post-traumatic stress disorder: Role of childhood trauma. Addiction Biology, 30(4), e30037. https://doi.org/10.1111/adb.70037
* Equal contributions.
Gunawan, T., Kearns, D.N., Silberberg, A., & Juliano, L.M. (2025). Time costs in the demand for cigarettes assessed using the Cigarette Purchase Task-Time (CPT-T). Experimental and Clinical Psychopharmacology. Advanced online publication. https://doi.org/10.1037/pha0000777
Leiter, N., Luk, J.W., Stangl, B.L., Gunawan, T., Schwandt, M.L., Goldman, D., Diazgranados, N., & Ramchandani, V.A.(2025). History of alcohol use disorder and housing instability as predictors of fatigue and mental health problems during the COVID-19 pandemic. Prevention Science. https://doi.org/10.1007/s11121-025-01784-0
Meruelo, A.D., Gunawan, T., Thomas, M.L., Ramchandani, V.A. (2024). A four-factor model of executive function: Predicting physical and academic outcomes from cognitive assessments in adolescents. Developmental Cognitive Neuroscience, 70, 101471. https://doi.org/10.1016/j.dcn.2024.101471
Gunawan, T., Luk, J.W., Schwandt, M.L., Kwako, L.E., Vinson, T., Horneffer, Y., George, D.T., Koob, G.F., Ramchandani, V.A., Diazgranados, N., & Goldman, D. (2024). Factors underlying the neurofunctional domains of the Addictions Neuroclinical Assessment by a standardized neurocognitive battery. Translational Psychiatry, 14, 271. https://doi.org/10.1038/s41398-024-02987-9
Hall, O. T., Gunawan, T., Teater, J., Bryan, C., Gorka, S., & Ramchandani, V. A. (2024). Withdrawal interference scale: a novel measure of withdrawal-related life disruption in opioid use disorder and alcohol use disorder. The American Journal of Drug and Alcohol Abuse, 1–13. https://doi.org/10.1080/00952990.2024.2350057
Luk, J.W., Leiter, N., Stangl, B.L., Gunawan, T., Schwandt, M.L., Goldman, D., Diazgranados, N., & Ramchandani, V.A. (2024). Associations of history of alcohol use disorder with loneliness, social support, and mental health during the COVID-19 pandemic. Psychiatry Research, 335, 115826. https://doi.org/10.1016/j.psychres.2024.115826
McCabe, E.M., Luk, J.W., Stangl, B.L., Schwandt, M.L., Ziausyte, U., Kim, H., Vergeer, R.R., Gunawan, T., Fede, S.J., Momenan, R., Joseph, P.V., Goldman, D., Diazgranados, N., & Ramchandani, V.A. (2024) Exercising healthy behaviors: A latent class analysis of positive coping during the COVID-19 pandemic and associations with alcohol-related and mental health outcomes. PLoS ONE 19(2): e0297060. https://doi.org/10.1371/journal.pone.0297060
Luk, J.W., Leiter, N., Axelowitz, J.C., Stangl, B.L., Melendez, C.R., Schwandt, M.L., Gunawan, T., Goldman, D., Diazgranados, N., & Ramchandani, V.A. Effects of clustering and timing of early life stress exposure on mood problems, ADHD symptoms, and problematic drinking. (2023). Journal of Psychiatric Research, 166, 130-138. https://doi.org/10.1016/j.jpsychires.2023.09.018
Beasly, M.M., Amantini, S., Gunawan, T., Silberberg, A., & Kearns, D.N. (2023). Cocaine and heroin interact differently with nondrug reinforcers in a choice situation. Experimental and Clinical Psychopharmacology, 32(2), 158–172. . https://doi.org/10.1037/pha0000674
Luk, J.W., Stangl, B.L., Schwandt, M.W., Gunawan, T., Joseph, P.V., Momenan, R., Goldman, D., Diazgranados, N., & Ramchandani, V.A. (2023) A person-centered approach to capture health disparities and multidimensional impact of COVID-related stressors. American Psychologist, 78(3), 321-332. https://doi.org/10.1037/amp0001044
Luk, J.W., Stangl, B.L., Gunawan, T., Schwandt, M.L., Morris, J.K., Axelowitz, J.L., Chawla, S., Lee, B.A., Carraco, M., Walsh, S., McDuffie, C., Agarwal, K., Joseph, P.V., Momenan, R., Goldman, D., Diazgranados, N., & Ramchandani, V.A. (2023). Changes in Alcohol-Related Behaviors and Quality of Life during the COVID-19 Pandemic: Impact of Alcohol Use Disorder Diagnosis and Treatment History. Journal of Clinical Psychiatry, 78(3), 321–332. https://doi.org/10.4088/JCP.22br14462
Luk, J.W., Ramchandani, V.A., Diazgranados, N., Schwandt, M.L., Gunawan, T., George, D.T., & Goldman, D. (2022). Multidimensional quality of life across the spectrum of alcohol use disorder. Psychiatric Research and Clinical Practice, 4(4), 92-101. https://doi.org/10.1176/appi.prcp.20220023
Luk, J.W., Stangl, B.L., Schwandt, M.W., Gunawan, T., Joseph, P.V., Momenan, R., Goldman, D., Diazgranados, N., & Ramchandani, V.A. (2022) A person-centered approach to capture health disparities and multidimensional impact of COVID-related stressors. American Psychologist. Online ahead of print. https://doi.org/10.1037/amp0001044
Beasly, M.M., Gunawan, T., Tunstall, B.J., & Kearns, D.N. (2022). Intermittent access training produces greater motivation for a non-drug reinforcer than long access training. Learning & Behavior, 50, 509–523 . https://doi.org/10.3758/s13420-022-00512-w
Gunawan, T. & Juliano, L.M. (2020). Differences in smoking topography and subjective responses to smoking among African American and White menthol and non-menthol smokers. Nicotine & Tobacco Research, 22(10), 1718-1725. https://doi.org/10.1093/ntr/ntaa079
Gunawan, T., Hachiga, Y., Tripoli, C.S., Silberberg, A., & Kearns, D.N. (2020). Heroin choice depends on income level and economy type. Psychopharmacology, 237(5), 1447-1457. https://doi.org/10.1007/s00213-020-05471-6
Gunawan, T., Tripoli, C.S., Silberberg, A., & Kearns, D.N. (2019). The effect of economy type on heroin and saccharin essential value. Experimental and Clinical Psychopharmacology, 27(6), 598-608. https://doi.org/10.1037/pha0000277
Kim, J. S., Gunawan, T., Tripoli, C.S., Silberberg, A., & Kearns, D.N. (2018). The effect of economy type on demand and preference for cocaine and saccharin in rats. Drug and Alcohol Dependence, 192, 150-157. https://doi.org/10.1016/j.drugalcdep.2018.08.005