Jennifer Schroeder

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Although commonly assessed with unidimensional scales, craving has been suggested to be multifaceted and to have a complex relationship with drug use and relapse. This study assessed the consistency and predictive validity of unidimensional and multidimensional craving scales. At the beginning of a 12-week outpatient treatment trial, opiate users (n = 101)(More)
OBJECTIVE This study examined the prevalence of cigarette smoking and the quantity of cigarettes consumed by individuals with schizophrenia or bipolar disorder and by those with no psychiatric disorder in the period 1999-2011. METHODS A total of 991 individuals with schizophrenia, bipolar disorder, or no psychiatric illness provided information about(More)
To test whether a combination of contingency management and methadone dose increase would promote abstinence from heroin and cocaine, we conducted a randomized controlled trial using a 2 x 3 (dosexcontingency) factorial design in which dose assignment was double-blind. Participants were 252 heroin- and cocaine-abusing outpatients on methadone maintenance.(More)
Behavioral and neuroplastic changes occurring in the development of addiction parallel those that occur in social bonding. This has led to speculation that drugs of abuse co-opt systems that subserve social attachment to shift attachment to drugs of abuse. Oxytocin, a neuropeptide that is important in social bonding, has been shown in rodents to decrease(More)
The role of the human microbiome in schizophrenia remains largely unexplored. The microbiome has been shown to alter brain development and modulate behavior and cognition in animals through gut-brain connections, and research in humans suggests that it may be a modulating factor in many disorders. This study reports findings from a shotgun metagenomic(More)
In this paper, we report on two user-centric evaluation studies of COPLINK, a suite of criminal data mining and knowledge management applications developed at the University of Arizona. Our evaluations concentrate on system usability and user acceptance in the law enforcement setting. Findings from our studies provide insights to digital government systems(More)
Persons with schizophrenia and with bipolar disorder have a reduced life expectancy due largely to death from natural causes. The reasons for this increased mortality have not been completely defined. We prospectively assessed a cohort of persons with schizophrenia and one with bipolar disorder with a clinical evaluation and a blood sample from which immune(More)
We have applied various visualization techniques to assist crime analysis. These techniques include a hierarchical list, a hyperbolic tree, a time line tool, a periodic pattern tool, a GIS tool and a self-organizing map. We have integrated some of these techniques into a single tool in order to display different and synchronized views of the same data. This(More)
In response to the September 11 terrorist attacks, major government efforts to modernize federal law enforcement authorities' intelligence collection and processing capabilities have been initiated. At the state and local levels, crime and police report data is rapidly migrating from paper records to automated records management systems in recent years,(More)