My main professional interests are in substance abuse treatment, medication adherence, incentive-based intervention, and the experimental analysis of behavior. My work can be broadly classified as contingency management. The primary focus of my research is to create sustainable long-term interventions for promoting healthy behaviors in low-income populations.
My recent completed projects show that employment-based abstinence reinforcement is an effective long term maintenance intervention in refractory methadone patients, and that employment-based reinforcement can promote adherence to naltrexone pharmacotherapy in heroin dependent adults living in poverty.
Current NIH-funded projects include a smartphone-based antiretroviral adherence intervention, further investigation of employment-based contingencies and naltrexone pharmacotherapy, the development of a pre-trial diversion program that features employment-based abstinence reinforcement, and the development of a wage subsidy program designed to simultaneously increase community employment while reinforcing drug abstinence in methadone patients.
DeFulio A, Donlin WD, Wong CJ, Silverman K. Employment-Based Abstinence Reinforcement as a Maintenance Intervention for the Treatment of Cocaine Dependence: A Randomized Controlled Trial. Addiction. 2009;104(9):1530-1538.
DeFulio A, Iati C, Needham M, Silverman K. Modification of perseverative responding that increased earnings but impeded skill acquisition in a job skills training program. J Appl Behav Anal. 2009;42(3):627-640.
DeFulio A, Silverman K. Employment-based abstinence reinforcement as a maintenance intervention for the treatment of cocaine dependence: post-intervention outcomes. Addiction. 2011;106(5):960-967.
Everly JJ, DeFulio A, Koffarnus MN, Leoutsakos JM, Donlin W, Aklin WM, Umbricht A, Fingerhood M, Bigelow GE, Silverman K. Employment-based reinforcement of adherence to depot naltrexone in unemployed opioid-dependent adults: A randomized controlled trial. Addiction. 2011; 106(7):1309-1318.
DeFulio A, Everly JJ, Leoutsakos JS, Umbricht A, Fingerhood M, Bigelow GE, Silverman K. Employment-based reinforcement of adherence to an FDA approved extended release formulation of naltrexone in opioid-dependent adults: A randomized controlled trial. Drug Alcohol Depend. 2012; 120(1-3):48-54.