William R. Zwick
Harvard University
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Featured researches published by William R. Zwick.
Archives of Sexual Behavior | 1981
James D. Lange; John P. Wincze; William R. Zwick; Steven Feldman; Kevin L. Hughes
Clinical programs for the treatment of impotence generally have been successful but without experimental verification of their individual components or factors associated with the development of impotence. Twenty-four normal males participated in an investigation comparing factors believed to inhibit or facilitate penile tumescence. The effects of demand for performance, self-monitoring of erection, and increased SNS activity, were evaluated. Subjects were exposed to sexual stimuli under these conditions and measurements of penile responses were taken. Results indicated that there were no differential effects on penile responses between demand and no-demand or between self-monitoring and no self-monitoring. Increased SNS activity appeared to facilitate loss of erection, but only after, and not during, the sexual stimulus. The clinical and theoretical implications of these findings are discussed, and suggestions are made for future research.
Hormones and Behavior | 1980
James D. Lange; Walter A. Brown; John P. Wincze; William R. Zwick
Abstract Serum testosterone concentration of 24 human males was correlated with penile diameter changes in response to erotic stimuli. Mean testosterone concentration was significantly and negatively correlated with latency to maximum tumescence and it is hoped that this finding will shed light on the psychophysiological mechanisms involved in normal and impaired erectile function.
Behaviour Research and Therapy | 1984
Peter M. Monti; Robert Boice; Allan L. Fingeret; William R. Zwick; David Kolko; Sandra M. Munroe; Aimee Grunberger
Abstract This paper reports the development and assessment of midi-level behavioral measures of social anxiety in the context of two experiments, one studying an analog student sample, the other a psychiatric sample. Judgments on nine categories of clinically practical midi-level behaviors (e.g. Facial Expression, Orienting, Sense of Timing), based on a review of the literature on human ethology and on pilot research, were compared to global judgments of social anxiety and social skill and to physiological arousal. Intraclass correlations exceeded 0.80 for judgments of the global and midi-level behavioral ratings on both samples. Results of correlational analyses indicated that while there were several significant predictors of global skill and anxiety among the midis, the magnitude of the relationship between midis and globals was stronger for the patient than the student sample. Further analyses based on S s heart rate (HR) reactivity suggested that while global ratings did not significantly predict H R in a high social anxiety situation, one midi-level behavioral rating (self-manipulations) did. The clinical utility of the newly developed measures is discussed with particular attention to their practicality for behavior therapy.
Journal of Substance Abuse | 1992
Elizabeth Michalec; William R. Zwick; Peter M. Monti; Damaris J. Rohsenow; Selene M. Varney; Raymond Niaura; David B. Abrams
Although high-risk situations have been identified for alcoholism, opiate abuse, and smoking, further research is needed to identify high-risk situations for cocaine abuse. A 233-item Cocaine High-Risk Situations Survey was developed based on a comprehensive literature review and was administered to 179 cocaine users in treatment. Situations that occurred infrequently or that were not often associated with cocaine use were eliminated and the remaining 89 items were factor analyzed using half the sample with confirmatory factor analysis on the remainder of the sample. Only one factor was found for frequency of cocaine use in these situations. The 21 items with high factor loadings and a diverse range of content were retained for subsequent analyses and renamed the Cocaine High-Risk Situations Questionnaire (CHRSQ). Reliability and convergent and discriminant validity of this scale were demonstrated. Frequency of alcohol use in the same situations was not significantly related to cocaine use and abuse, supporting discriminant validity. The findings suggest that the frequency of ongoing cocaine use is not determined by specific situations. Theoretical and clinical implications are discussed.
Journal of Abnormal Psychology | 1987
Peter M. Monti; Jody A. Binkoff; David B. Abrams; William R. Zwick; Ted D. Nirenberg; Michael R. Liepman
Journal of Studies on Alcohol and Drugs | 1990
Peter M. Monti; David B. Abrams; Jody A. Binkoff; William R. Zwick; Michael R. Liepman; Ted D. Nirenberg; Damaris J. Rohsenow
Addictive Behaviors | 1999
Robert L. Stout; Amy Rubin; William R. Zwick; William H. Zywiak; Lori Bellino
American Journal of Drug and Alcohol Abuse | 1995
Selene M. Varney; Damaris J. Rohsenow; Achintya N. Dey; Mark G. Myers; William R. Zwick; Peter M. Monti
Journal of Studies on Alcohol and Drugs | 1993
Peter M. Monti; Damaris J. Rohsenow; David B. Abrams; William R. Zwick; Jody A. Binkoff; Sandra M. Munroe; Allan L. Fingeret; Ted D. Nirenberg; Michael R. Liepman; Magda Pedraza; Ronald M. Kadden; Ned L. Cooney
Alcoholism: Clinical and Experimental Research | 2001
Michael E. Hilton; Stephen A. Maisto; Joseph Conigliaro; Melissa McNiel; Kevin L. Kraemer; Mary E. Kelley; Rosemarie Conigliaro; Jeffrey H. Samet; Mary Jo Larson; Jacqueline Savetsky; Michael Winter; Lisa M. Sullivan; Richard Saitz; Constance Weisner; Jennifer R. Mertens; Sujaya Parthasarathy; Charles Moore; Enid M. Hunkeler; Teh Wei Hu; Joe V. Selby; Robert L. Stout; William H. Zywiak; Amy Rubin; William R. Zwick; Donald S. Shepard