Although many theorists have speculated that chronic pain may be linked to some sort of central neuropsychological integration deficit, a review of the current literature reveals no empirical support for this theory. This study attempts to assess the severity, if any, of neuropsychological deficits in chronic pain subjects by using a neuropsychological screen developed at the University of North Texas. Also, presented are studies of correlations between the UNT Neuropsych-screen and the MMPI. the Dallas Pain Questionnaire (DPQ), the Dallas Pain Drawing CDPD), and time since injury in order to assess any possible relationships. The subjects in this study consist of 100 volunteers. Of these subjects, 74 were patients of the Spinal and Chronic Pain Center at Medical Arts Hospital in Dallas, Texas and represented the clinical population. The remaining 26 subjects were staff volunteers from the hospital . The results of the study indicate significant differences between chronic pain subjects and non-pain subjects across many areas of neuropsychological functioning, as well as other significant correlations among many of the variables. The implications of this study are elaborated upon, in the discussion section, in detail along with limitations and future research directions.

This study examined the effects of self-monitoring behavior and health locus of control on improvement in a work hardening program. The subjects included 22 male and 18 female outpatients in a hospital-based rehabilitation program. Subjects were classified as having an internal or external health locus of control, and were randomly assigned to either a self-monitoring or a non-self-monitoring group. Improvement was assessed via objective performance data and self-ratings of perceived improvement. The results indicated that individuals identified as having an internal health locus of control did not show greater gains in physical functioning or perceived improvement relative to externally oriented individuals. Additionally, those subjects participating in self-monitoring activities were no different from non-self-monitoring subjects in terms of improvement in exercise activities or perceived improvement. The results also indicated no interaction between health locus of control and the presence or absence of self-monitoring. It was suggested that other factors such as workman's compensation, pain patient characteristics, low self-concept, and severe stress may have proved more powerful influences on patient improvement than internal health locus of control or self-monitoring. It was also suggested that rehabilitation programs might benefit from creating structured environments in which patients receive frequent staff feedback and reinforcement for …

The purpose of this study was to validate the Spanish version of the Dallas Pain Questionnaire (DPQ). Not only does the DPQ offer the potential of statistical and clinical diagnostic value but also is easily interpretable across cultural lines. No such instrument has presently been validated for the Mexican-American population. A total of 81 Spanish speaking subjects participated in this study. Of these subjects, 56 were classified as chronic pain patients by nature of their medical diagnosis and duration of pain. The 25 normal subjects were family members of the chronic pain patients and members of the Northern New Mexico Hispanic community chosen at random. Hypothesis one predicted that reliability would be obtained on Spanish speaking populations based on test-retest with correlation coefficients of the items. The second hypothesis predicted that the Spanish DPQ would have content validity or consistent internal structure on those items that measure the trait or behavior of interest based upon factor analysis approaches and internal consistency measures. Hypothesis three predicted that the Spanish version of the DPQ would significantly correlate with the English version of the DPQ on all four factors. All four hypotheses were supported. The Spanish DPQ showed reliability over time based on …