title: Incentives and Motivation.
authors.affiliation: Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine.
authors.forename: Kenneth
authors.initials: K
authors.lastname: Silverman
authors.affiliation: Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine.
authors.forename: Brantley P
authors.initials: BP
authors.lastname: Jarvis
authors.affiliation: Child Study Center, Fort Worth, Texas.
authors.forename: Joshua
authors.initials: J
authors.lastname: Jessel
authors.affiliation: Department of Psychology, Virginia Commonwealth University.
authors.forename: Alexa A
authors.initials: AA
authors.lastname: Lopez