Related Experiment Video
Updated: Jul 14, 2026

Measuring Delay Discounting in Humans Using an Adjusting Amount Task
Published on: January 9, 2016
Adolescent smokers rate delayed rewards as less certain than adolescent nonsmokers
Brady Reynolds1, Michele Patak, Palak Shroff
1Columbus Children's Research Institute & Department of Pediatrics, The Ohio State University, 700 Children's Drive, J1401 Columbus, OH 43205, USA. ReynoldB@pediatrics.ohio-state.edu
Abstract:
This research compared adolescent smokers (n=45) and nonsmokers (n=35) on ratings of certainty about receiving delayed rewards during a delay discounting procedure. Consistent with a previous finding [Patak, M., Reynolds, B., 2007. Question-based assessments of delay discounting: do respondents spontaneously incorporate uncertainty into their valuations for delayed rewards? Addict. Behav. 32, 351-357] participants generally rated the delayed rewards as increasingly uncertain with longer delays, and ratings of certainty were correlated with delay discounting (r=.37). Also, the adolescent smokers rated the delayed rewards as significantly less certain than the nonsmokers. These findings indicate that adolescents who smoke cigarettes evaluate delayed outcomes as less certain than adolescents who do not smoke cigarettes.
Related Concept Videos
Timing and Consequences on Behavior
Humans, however, can respond to delayed reinforcers. We often make decisions between immediate small rewards and delayed larger rewards. This ability to delay gratification is a significant factor...
Stimulants
Cocaine can be administered via snorting, injection, or smoking. It primarily functions by blocking the reuptake of dopamine, resulting in a euphoric high characterized by an intense sensation of happiness and...
Drugs Acting on Autonomic Ganglia: Stimulants
Ganglionic stimulants activate NM nicotinic receptors in autonomic ganglia, falling into two categories: nicotine mimetics [e.g., lobeline, dimethylpiperazine, tetramethylammonium] and muscarinic receptor agonists [e.g., muscarine, methacholine]. The first category's action is rapid and blocked by nicotinic receptor antagonists, while the second category's action is delayed and blocked by atropine-like agents. Nicotine, an alkaloid, affects the heart rate by stimulating sympathetic or...
