%0 Journal Article
%T Development of an individualized procedure to induce reward-related impulsivity and evaluating its impact on drinking control
%J Addictive behaviors
%D 2022
%A Lau, Yvonne C. Y.
%A Bryant, Sarah J.
%A Gullo, Matthew J.
%V 133
%N 
%P 107378-107378
%X High impulsivity predisposes young adults to engage in hazardous alcohol use. Experimental research has shown that reward-related impulsivity is causally-related to heavier drinking. Correlational studies suggest that positive alcohol outcome expectancies mediate this effect, but causation has yet to be established. This study sought to clarify this relationship by: 1) developing a new, individualized procedure for inducing reward-related impulsivity with high generalizability; 2) experimentally manipulating positive alcohol expectancies to determine its mechanistic role in reward-related impulsivity risk for drinking. Eighty-seven young adults (67% female; M(age) = 19.19, SD = 2.01) received either a covert manipulation to reduce positive alcohol expectancies (n = 43) or control (n = 44) after being administered the Individualized Reward-Seeking Induction Schedule (IRIS). The primary outcome was self-reported confidence in the ability to refuse alcohol in cued situations (drinking refusal self-efficacy). <br><br>RESULTS showed that IRIS increased reward-related impulsivity (p < .001, d(rm) = 0.48) and reduced drinking refusal self-efficacy (p = .029, η(2)(P) = .055, ω(p)(2) = .043). Experimentally diminishing positive alcohol expectancies had a marginal effect on the reward-seeking induction when controlling for covariates (p = .057, η(2)(P) = .044). <br><br>FINDINGS provide preliminary validation of IRIS as a new methodology for investigating the causal role of reward-related impulsivity in alcohol-related cognition and youth drinking.<p /> <p>Language: en</p>
%G en
%I Elsevier Publishing
%@ 0306-4603
%U http://dx.doi.org/10.1016/j.addbeh.2022.107378