Stacy R. Ryan
University of Texas Health Science Center at San Antonio
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Publication
Featured researches published by Stacy R. Ryan.
Journal of Pediatric Psychology | 2013
Catherine Stanger; Stacy R. Ryan; Leanna M. Delhey; Kathryn M. Thrailkill; Zhongze Li; Zhigang Li; Alan J. Budney
OBJECTIVE To adapt and pilot test a multicomponent motivational intervention that includes family-based contingency management (CM) for adolescents with poorly controlled type 1 diabetes. METHODS A total of 17 adolescents, age 12-17 years (M = 14.8, SD = 1.5), with type 1 diabetes (duration M = 6.2 years, SD = 4.5) and mean HbA1c of 11.6% (SD = 2.5%) were enrolled. Adolescents and their parents received 14 weeks of motivational interviewing, clinic-based CM, and parent-directed CM that targeted increased blood glucose monitoring (BGM). RESULTS Adolescents significantly increased their BGM (p < .001) and showed significantly improved HbA1c levels (glycemic control) from pre-to posttreatment (p < .0001). CONCLUSIONS The magnitude of improvements in the frequency of BGM and glycemic control in adolescents with type 1 diabetes is encouraging and will be tested in a randomized controlled trial.
Drug and Alcohol Dependence | 2014
Donald M. Dougherty; Charles W. Mathias; Stacy R. Ryan; Rene L. Olvera; Yuanyuan Liang; Ashley Acheson
BACKGROUND Youth with family histories of substance use disorders (FH+) are at increased risk for developing substance use disorders relative to those without such histories (FH-). FH+ individuals show deficits in impulse control that parallel those in individuals with substance use disorders. Elucidating how specific components of impulse control are affected in FH+ pre-adolescents would advance our understanding of how deficits in impulse control relate to risk of substance use disorders. METHOD A total of 386 children (305 FH+, 81 FH-; ages 10-12) with no histories of regular alcohol or other drug use were compared on measures of delay discounting (Kirby), response inhibition (GoStop Impulsivity Paradigm), and response initiation impulsivity (Immediate Memory Task). The independent associations between these three behavioral measures of impulsivity and FH status were analyzed using logistic regression models. RESULT FH+ pre-adolescents performed more impulsively on measures of delay discounting and response inhibition impulsivity, but there were no significant group differences on response initiation impulsivity. When the behavioral impulsivity measures were examined simultaneously, delay discounting was most robustly associated with FH status. CONCLUSIONS These results identify deficits in impulse control present in FH+ pre-adolescents before the onset of regular substance use, and suggest that increased delay discounting may be an important behavioral phenotype for pre-adolescents at risk for substance use involvement.
Journal of the American Academy of Child and Adolescent Psychiatry | 2015
Catherine Stanger; Stacy R. Ryan; Emily A. Scherer; Gray E. Norton; Alan J. Budney
OBJECTIVE The aim of this study was to conduct a randomized test comparing 2 multicomponent, contingency management interventions, 1 with and 1 without a full parent training curriculum, and an individual treatment for adolescent cannabis use disorders. METHOD A total of 153 adolescents who met DSM-IV criteria for cannabis abuse or dependence were randomized to motivational enhancement therapy/cognitive-behavioral therapy (MET/CBT), MET/CBT+abstinence-based contingency management (CM), or MET/CBT+CM+Parent Training (PT). RESULTS Overall, during treatment, abstinence was greater for youth receiving clinic- and home-based CM without PT compared to those who received individual MET/CBT. There was no additional benefit of the full PT curriculum on marijuana use, youth externalizing problems, or parenting. CONCLUSION These results suggest that clinic- plus home-based CM for cannabis use disorders can increase rates of abstinence during treatment over and above an evidence-based treatment (individual MET/CBT), but in this study the addition of a comprehensive parenting training curriculum did not further enhance efficacy. CLINICAL TRIAL REGISTRATION INFORMATION Treatment for Adolescent Marijuana Abuse; http://clinicaltrials.gov; NCT00580671.
Alcoholism: Clinical and Experimental Research | 2015
Donald M. Dougherty; Sarah L. Lake; Charles W. Mathias; Stacy R. Ryan; Bethany C. Bray; Ashley Acheson
BACKGROUND Youths with family histories of alcohol and other drug use disorders (FH+) are at increased susceptibility for developing substance use disorders relative to those without such histories (FH-). This vulnerability may be related to impaired adolescent development of impulse control and elevated risk-taking. However, no previous studies have prospectively examined impulse control and risk-taking in FH+ youth across adolescence. METHODS A total of 386 pre-adolescents (305 FH+, 81 FH-; aged 10 to 12) with no histories of regular alcohol or other drug use were compared on behavioral measures of impulsivity including delay discounting, response initiation (Immediate Memory Task), response inhibition impulsivity (GoStop Impulsivity Paradigm), and risk-taking (Balloon Analogue Risk Task-Youth). Youths completed these laboratory tasks every 6 months, allowing for the examination of 10- to 15-year-olds. Hierarchical linear modeling was used to characterize the development of impulse control and risk-taking as shown in performance of these tasks throughout adolescence. RESULTS We found that (i) FH+ youths had increased levels of delay discounting and response inhibition impulsivity at study entry; (ii) regardless of FH status, all youths had relatively stable delay discounting across time, improvements in response inhibition and response initiation impulsivity, and increased risk-taking; and (iii) although FH+ youths had increased response inhibition impulsivity at pre-adolescence, these differences were negligible by mid-adolescence. CONCLUSIONS Heightened delay discounting in FH+ pre-adolescents coupled with normal adolescent increases in risk-taking may contribute to their increased susceptibility toward problem substance use in adolescence.
Addictive Behaviors | 2016
Nora E. Charles; Stacy R. Ryan; Bethany C. Bray; Charles W. Mathias; Ashley Acheson; Donald M. Dougherty
A number of studies have associated impulsivity and sensation seeking with level of substance use and risk for developing a substance use disorder. These relationships may be particularly apparent during adolescence, when developmental changes in impulsivity and sensation seeking occur at the same time as increased opportunities for substance use. To examine this, the current study measured impulsivity and sensation seeking from pre-adolescence to mid-adolescence in a sample of youth, the majority of whom were identified as being at risk for developing a substance use disorder based on their family history of substance use disorders. Youth were separated into those who did (n=117) and did not (n=269) initiate substance use by mid-adolescence. Results showed that substance users were more impulsive and more sensation seeking during pre-adolescence, prior to any significant substance use, and that greater sensation seeking in pre-adolescence was related to heavier substance use by mid-adolescence. In addition, developmental trajectories for substance-using youth showed a greater increase in sensation seeking but a more modest decrease in impulsivity from pre-adolescence to mid-adolescence. Taken together, these results indicate that increased impulsivity and sensation seeking is apparent in adolescent substance users as early as pre-adolescence, that the difference between substance users and non-users becomes larger across early adolescence as their developmental trajectories diverge, and that greater sensation seeking in pre-adolescence may predict increased substance use by mid-adolescence.
Journal of Child & Adolescent Substance Abuse | 2016
Stacy R. Ryan; Ashley Acheson; Sarah L. Lake; David L. Hernandez; Charles W. Mathias; Donald M. Dougherty
Abstract This is a descriptive study of the recruitment and clinical/environmental characteristics of a child cohort (ages 10–12) established to test transmission of impulsivity in children with (FH+; N = 305) and without (FH–; N = 81) family history of substance use disorder. Among this cohort FH+ children had more emotional and behavioral symptoms, worse family relationships, and more deviant peers compared to FH− children. This cohort of children was established prior to the initiation of regular substance use and significant clinical problems, which will allow the opportunity to examine reciprocal relations between development of impulse control and substance use development.
Traffic Injury Prevention | 2015
Jillian Mullen; Stacy R. Ryan; Charles W. Mathias; Donald M. Dougherty
Objective: This study aimed to characterize and compare the treatment needs of adults with driving while intoxicated (DWI) offenders recruited from a correctional residential treatment facility and the community to provide recommendations for treatment development. Method: A total of 119 adults (59 residential, 60 community) with at least one DWI offense were administered clinical diagnostic interviews to assess substance use disorders and completed a battery of questionnaires assessing demographic characteristics, legal history, psychiatric diagnoses, medical diagnoses, and health care utilization. Results: Almost all (96.6%) DWI offenders met clinical diagnostic criteria for an alcohol use disorder, approximately half of the sample also met diagnostic criteria for comorbid substance use disorders, and a substantial proportion also reported psychiatric and medical comorbidities. However, a high percentage were not receiving treatment for these issues, most likely as a result of having limited access to care, because the majority of participants had no current health insurance (64.45%) or primary care physician (74.0%). The residential sample had more extensive criminal histories compared to the community sample but was generally representative of the community in terms of their clinical characteristics. For instance, the groups did not differ in rates of substance use, psychiatric and medical health diagnoses, or the treatment of such issues, with the exception of alcohol abuse treatment. Conclusions: DWI offenders represent a clinical population with high levels of complex and competing treatment needs that are not currently being met. Our findings demonstrate the need for standardized screening of DWI offenders and call for the development of a multimodal treatment approach in efforts to reduce recidivism.
Psychology of Addictive Behaviors | 2015
Stacy R. Ryan; Ashley Acheson; Charles W. Mathias; Yuanyuan Liang; Donald M. Dougherty
Having a family history of substance use disorders (FH+) increases risk for developing a substance use disorder. This risk may be at least partially mediated by increased exposure to childhood stressors among FH+ individuals. However, measures typically used to assess exposure to stressors are narrow in scope and vary across studies. The nature of stressors that disproportionately affect FH+ children and how these stressors relate to later substance use in this population are not well understood. The purpose of this study was to assess exposure to a broad range of stressors among FH+ and FH- children to better characterize how exposure to childhood stressors relates to increased risk for substance misuse among FH+ individuals. A total of 386 children (305 FH+, 81 FH-; ages 10-12) were assessed using the Stressful Life Events Schedule before the onset of regular substance use. Both the number and severity of stressors were compared. Preliminary follow-up analyses were done for 53 adolescents who subsequently reported initiation of substance use. FH+ children reported more frequent and severe stressors than did FH- children, specifically in the areas of housing, family, school, crime, peers, and finances. Additionally, risk for substance use initiation during early adolescence was influenced directly by having a family history of substance use disorders and also indirectly through increased exposure to stressors among FH+ individuals. In conclusion, FH+ children experience greater stress across multiple domains, which contributes to their risk for substance misuse and related problems during adolescence and young adulthood. (PsycINFO Database Record
Addiction Science & Clinical Practice | 2015
Jillian Mullen; Stacy R. Ryan; Charles W. Mathias; Donald M. Dougherty
BackgroundAlcohol use patterns that are hazardous for one’s health is prevalent among DWI (driving while intoxicated) offenders and is a key predictor of recidivism. The aim of this program evaluation was to determine the feasibility and usability of implementing a computer-assisted screening, brief intervention and referral to treatment (SBIRT) program for DWI offenders to enable the identification of those in need of treatment services soon after arrest. Our treatment program consisted of a web-based, self-guided screening tool for assessing alcohol use patterns and generating a personalized feedback report that is then used to deliver a brief motivational intervention and if needed, a referral to treatment.MethodsBetween August and November 2014, all DWI offenders attending orientation for pre-trial supervision were assessed for eligibility. Of the 129 eligible offenders, 53.5 percent enrolled and the first 50 were asked to complete a usability and satisfaction questionnaire.ResultsThe results demonstrated that the majority of those screened reported at-risk alcohol use patterns requiring referral to treatment. Clients reported high ratings of usability and satisfaction with the screening tool and personalized feedback report, which did not significantly differ depending on alcohol use patterns. There were relatively few technical difficulties, and the majority of clients reported high levels of satisfaction with the overall SBIRT program.ConclusionResults of this program evaluation suggest that computer-assisted SBIRT may be successfully implemented within the criminal justice system to DWI offenders soon after arrest; however, further research is required to examine its effects on treatment utilization and recidivism.
Psychology of Addictive Behaviors | 2017
Catherine Stanger; Emily A. Scherer; Steven F. Babbin; Stacy R. Ryan; Alan J. Budney
The purpose of this study was to conduct a randomized test of clinic- and home-based incentives plus parent training for adolescent problem alcohol use. Adolescents (N = 75) with alcohol misuse, with or without other substance misuse, were enrolled. All youth received individual Motivational Enhancement Therapy/Cognitive Behavior Therapy and weekly urine drug testing. The experimental condition (EXP) included Abstinence Incentives (clinic-based incentives for abstinence from all substances) plus weekly behavioral parent training that included a parent-delivered, abstinence-based, substance monitoring contract. The comparison condition (CONTROL) included Attendance Incentives (ATTI). All adolescents met DSM–IV criteria for alcohol abuse or dependence or reported recent binge drinking, and 77% (N = 58) met criteria for a cannabis use disorder or had recent cannabis use at baseline. Alcohol and cannabis use outcomes were compared across treatment conditions. A similar percentage of youth maintained complete alcohol abstinence across the 36-week follow-up in both conditions. However, among youth not entirely abstinent from alcohol, EXP resulted in a lower percentage of days using alcohol during the 36 weeks after the end of treatment than CONTROL. Among youth who also used cannabis at baseline, results showed similar benefits of EXP on cannabis use days. Combined individual and family based treatment, plus abstinence based incentives can reduce substance use days during and after treatment over and above individual evidence-based psychosocial treatment plus attendance incentives. Future research should focus on identifying cost-effective components and incentive levels and delivery via technology to facilitate dissemination.
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University of Texas Health Science Center at San Antonio
View shared research outputsUniversity of Texas Health Science Center at San Antonio
View shared research outputsUniversity of Texas Health Science Center at San Antonio
View shared research outputsUniversity of Texas Health Science Center at San Antonio
View shared research outputsUniversity of Texas Health Science Center at San Antonio
View shared research outputsUniversity of Texas Health Science Center at San Antonio
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