Philadelphia University + Thomas Jefferson University

Weinstein, Stephen P

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Stephen P. Weinstein, PhD

Contact Dr. Weinstein

900 Walnut Street
JHN 4th floor
Philadelphia, PA 19107

(215) 955-7910
(215) 503-4358 fax

Research and Clinical Interests

Addiction Treatment, Factors Effecting Outcomes in Addiction Treatment, Recovery

Over the past several years, grants and contracts awarded to division faculty have supported a diverse array of studies including; comparing serotonergic dysfunction and treatment outcomes in cocaine dependence; utilizing a randomized clinical trial design to determine whether or not "intensive" outpatient care when compared to traditional outpatient services is more effective in treating cocaine dependence; determining if disparate levels of spirituality between alcoholic patients and treatment programs effect treatment outcome; the effectiveness of motivational incentives used to enhance drug abuse recovery in drug free clinic settings; and, assessing the cost effectiveness of an intense, post-opiate detoxification program focused on high resource utilizing patients.

A very important issue which division researchers and clinicians have focused on is reflected in an effort to determine some of the overt and underlying factors that influence effective addiction treatment and lead to favorable treatment outcomes and long term patient recovery in the community. A current study designed to determine the behavioral health needs of older Philadelphians is currently underway. Our researchers have also focused on the concept of "recovery capital" - a measure of what personal strengths an individual brings with him/her into a treatment experience.

My research has focused on matching patient characteristics to treatment models, determining whether or not factors such as intensity of services, cue exposure paradigms, internalized levels of spirituality, personal developmental history (recovery capital) influence engagement and retention in treatment and/or outcome. As a Division Director it is also my responsibility to support the efforts of our researchers and clinicians, a task which when interpreted by staff as part of overall performance improvement creates a more accepting research environment within the clinical care setting.

The techniques that we have used in our research are randomized controlled clinical trials, quasi-experimental designs, clinical evaluations, retrospective review

I hope that our findings will be used to increase knowledge about effective models for improving outcomes and long-term recovery in addiction treatment settings.


Most Recent Peer-Reviewed Publications

  1. Alcohol and other drug use in older adults: results from a community needs assessment
  2. Impact of cannabis use during stabilization on methadone maintenance treatment
  3. Drug Abuse, Dependency, and Withdrawal
  4. Erratum: The influence of intake urinalysis, psychopathology measures, and menstrual cycle phase on treatment outcome (The American Journal on Addictions 18: 2 (169))
  5. The influence of intake urinalysis, psychopathology measures, and menstrual cycle phase on treatment compliance
  6. Measuring recovery capital and determining its relationship to outcome in an alcohol dependent sample
  7. A retrospective case control study of alcohol relapse and spiritual growth
  8. Inpatient desire to drink as a predictor of relapse to alcohol use following treatment
  9. Levels of spirituality and treatment outcome: A preliminary examination
  10. The relationship between nicotine dependence and addiction severity amongst cocaine abusers
  11. Gender differences in cue exposure reactivity and 9-month outcome
  12. Pre-treatment measures of impulsivity, aggression and sensation seeking are associated with treatment outcome for African-American cocaine-dependent patients
  13. Differences in peripheral noradrenergic function among actively drinking and abstinent alcohol-dependent individuals
  14. Comparison of Pretreatment Characteristics and Treatment Outcomes for Alcohol-, Cocaine-, and Multisubstance-Dependent Patients
  15. Relationship between seroton in transporter gene polymorphisms and platelet serotonin transporter sites among African-American cocaine-dependent individuals and healthy volunteers
  16. Relationship between Platelet Serotonin Uptake Sites and Measures of Impulsivity, Aggression, and Craving among African-American Cocaine Abusers
  17. High- and low-structure treatments for substance dependence: Role of learned helplessness
  18. Tobacco Smoking: Current Concepts in Etiology and Treatment
  19. Nicotine dependence and treatment outcome among African American cocaine-dependent patients
  20. The genetic determinants of smoking